Mathlib status updates

Stream: nightly-testing

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

The importGraph package will need updating.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Okay, there is a lot more fallout from https://github.com/leanprover/lean4/pull/3675.

[Kim Morrison]

Some of this is that auxiliary lemmas generated by simp have changed names.

[Kim Morrison]

Try replace foo._eq_1 with foo.eq_1; this fixes a lot of it. (Also try omitting it from the simp set: this often seems to work.)

[Kim Morrison]

• There is a not-obviously related problem in Mathlib.Data.Nat.Bitwise.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

• Failure in Mathlib.Data.Rel, where it seems like attribute [eqns flip_def] flip is no longer working.
• Mathlib.Control.Fold is affected by the same issue.
• Mathlib.Data.DFinsupp.WellFounded too.

Finding a minimal example of this problem with @[eqns] seems like a priority: whether the fix belongs in Mathlib.Tactic.Eqns or needs to go upstream. Pinging @Eric Wieser as the @[eqns] expert. :-)

[Kim Morrison]

I'm done for the day. Suggestion for anyone who wants to work on this:

• Claim either of the bullet points above with a :hammer_and_wrench: and try to work out what has happened!
• There are more errors in the build, so just running lake build and seeing what you encounter is useful.
• There are enough problems that it is helpful if you encounter an error that you can't immediately fix to:
  • Add -- FIXME nightly-testing
  • Sorry the broken proof
  • Post a bullet point here for someone to claim.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[Ruben Van de Velde]

This is fun - we have a theorem Asymptotics.IsLittleO.def but lean doesn't allow calling things def anymore

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Yes, we have quite a few of these. I've been renaming def to def'... Ideas?

[Ruben Van de Velde]

The first one I encountered already had a def', so I used definition

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kevin Buzzard]

I only recently discovered that definition was not a keyword! I had always imagined that def was short for it.

[Kyle Miller]

Lean 3 had definition as a keyword! Lean 4 cleaned up some synonyms.

[Eric Wieser]

We can just use «def», right?

[Kyle Miller]

There's a change to the equation lemma generator, and now .def is reserved

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

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[Kim Morrison]

/poll What to do with .def being reserved?

[Kyle Miller]

What does option «def» mean? Isn't that equivalent to def?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kyle Miller]

For Asymptotics.IsLittleO.def, that isn't the definition of Asymptotics.IsLittleO, so why is it called def?

Are there other cases where Lean's auto-generated def isn't the def lemma that we wanted?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Resuming work on this, just dealing with errors from lake build

[Kim Morrison]

Would unfold be good as an alternative for the automatically generated (and reserved) name?

[Mario Carneiro]

might be good to set up some basic test for this by querying the import Mathlib environment and seeing how popular various choices are

[Mario Carneiro]

my gut feeling is that foo.unfold will have fewer hits than foo.def

[Mario Carneiro]

what exactly is it being reserved for?

[Mario Carneiro]

Aren't unfolding theorems already called foo.eq_<n>?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

I've created #11437 with the adaptations so far for nightly-2024-3-16. Let's work on that in preference to nightly-testing, so we can try to get this done without having to deal with subsequent changes as nightly-testing automatically advances.

[Kim Morrison]

@Mario Carneiro, e.g.:

#print IsSeparator
-- def CategoryTheory.IsSeparator.{v₁, u₁} : {C : Type u₁} → [inst : Category.{v₁, u₁} C] → C → Prop :=
--   fun {C} [Category.{v₁, u₁} C] G ↦ IsSeparating {G}

#print CategoryTheory.IsSeparator.def
-- theorem CategoryTheory.IsSeparator.def.{v₁, u₁} : ∀ {C : Type u₁} [inst : Category.{v₁, u₁} C] (G : C),
--   IsSeparator G = IsSeparating {G} :=
-- fun {C} [Category.{v₁, u₁} C] G ↦ Eq.refl (IsSeparator G)

while the manually created theorem which currently needs renaming is

theorem IsSeparator.def' {G : C} :
    IsSeparator G → ∀ ⦃X Y : C⦄ (f g : X ⟶ Y), (∀ h : G ⟶ X, h ≫ f = h ≫ g) → f = g :=
  (isSeparator_def _).1

[Mario Carneiro]

Also, is there a reason these theorems can't be like foo._def? Isn't the leading underscore supposed to mean "reserved for the system"?

[Mario Carneiro]

i.e. we already solved this problem

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Hmm... it succeeded earlier today, but the bot didn't post.

[Kim Morrison]

https://github.com/leanprover-community/mathlib4/actions/runs/8321208093/job/22767110964

[Kim Morrison]

#11469

[Ruben Van de Velde]

Should we rename the defs on master already or do we expect that core will allow them again?

[Kim Morrison]

I think core will allow them again, but probably not until next week.

[Kim Morrison]

Probably that means it is best to rename with a note for now, unfortunately, and then rename back later. :-(

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Wow, this failed at "verify lake exe graph works". I guess it's good we added that to CI!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Needs a shake!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Thomas Murrills]

We shook too hard! :shaking_face:

[Thomas Murrills]

Should Mathlib.Tactic.Relation.Rfl be in Mathlib.Tactic.Common? It doesn’t import any theory files, but also doesn’t define any tactic syntax itself.

[Thomas Murrills]

I put it there for now; I’ll record here that if we don’t want it there, the import should be moved to Mathlib.CategoryTheory.Category.Basic.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[Kim Morrison]

This then leaves us with a question:

• #11437 (the adaptation PR for nightly-2024-03-16) is still open
• nightly-testing now contains further changes (not compatible with nightly-2024-03-16), and builds against nightly-2024-03-18
• Should we open a new PR from nightly-testing now, and have two such PRs in flight? Or just wait with these changes on nightly-testing (which will possibly break again with subsequent nightlies).

[Kim Morrison]

(Regarding my own priorities: I want to prioritize my work on adaptations towards getting nightly-testing working, as this is the critical step in enabling Lean CI to test against Mathlib, which in turn reduces the burden of subsequent adaptations. It's also the phase in which we learn what requests and bug reports need to be funnelled back to the FRO. But I'm hoping that to the extent possible the creation, review, and merging of the adaptation PRs to bump/v4.8.0 is shared.)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[Johan Commelin]

Scott Morrison opening a 2nd PR noe can't really hurt, right?

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[Yaël Dillies]

Johan, wrong Scott!

[Johan Commelin]

Good catch! Anyway, Scott created the PR nonetheless :wink:

[github mathlib4 bot]

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[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[Kim Morrison]

#11579 is the PR to bump/v4.8.0 from this latest success.

[Kim Morrison]

Ah, most of the diff will disappear once #11576 (an Std bump) lands. It got stuck in CI.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Scott Morrison said:

Ah, most of the diff will disappear once #11576 (an Std bump) lands. It got stuck in CI.

This should be trivial to review now.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Lots of new output from the new unused variables linter! These could all be backported to master.

[Kevin Buzzard]

Why did unused variables become a sin? I discovered that I use unused variables quite a lot in introductory teaching (e.g. teaching a proof of P -> (Q -> P) I do intro hP, intro hQ, exact hP and get a complaint that I didn't use hQ. I know! Who cares!)

[Sébastien Gouëzel]

If you know, just do intro _hQ so that your reader also knows.

[Ruben Van de Velde]

Generally in programming if you compute something that you don't need, either you can drop some unnecessary work in computing the thing, or you were meant to use it and forgot to. I guess neither applies as strongly in theorem proving

[Ruben Van de Velde]

I'll fix a few of the warnings now

[Kim Morrison]

(And an aside for those who are keeping track of these thing: the new unused variables linter is much faster, and I'm hoping there'll be a nontrivial change in total build time.)

[Mario Carneiro]

Ruben Van de Velde said:

Generally in programming if you compute something that you don't need, either you can drop some unnecessary work in computing the thing, or you were meant to use it and forgot to. I guess neither applies as strongly in theorem proving

The version of this that definitely does apply in theorem proving is that you made an unnecessary assumption and didn't use it, and probably you should drop it and strengthen the theorem

[Mario Carneiro]

Also unused have statements are an indication of unnecessary steps in a proof

[Kim Morrison]

(I really appreciate the unused have statements linter. I have found myself writing proofs recently where I saturate the context with plausible inputs for omega, and then clean up once omega says I'm done...)

[Kevin Buzzard]

I do this for exact? as well -- "what is likely to be useful? We have 0 < n, maybe I'll add n != 0" etc

[Johan Commelin]

Sounds like we need a saturate_context tactic

[Ruben Van de Velde]

#11583

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Jireh Loreaux]

Kevin, for teaching you could just add set_option linter.unusedVariables false at the top of the file, or even in the appropriate place in your lakefile (although I'm not sure exactly where that place is).

[Damiano Testa]

In the lakefile for my course, I have

package «mA4N1_2023» where
  -- add any package configuration options here
  moreServerArgs := #[ "-DautoImplicit=false" ]

so I imagine that an easy modification of this should work for unusedVariables.

[github mathlib4 bot]

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[Ruben Van de Velde]

#11594 has the rest of the unused variables

[github mathlib4 bot]

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[Kim Morrison]

Some upstreamed material needs removing, working on that now.

[Kim Morrison]

Unfortunately the upstreamed rw? is failing many of the tests in Mathlib. Will investigate.

[Kim Morrison]

These will require fixes upstream, and I've raised this with Joe.

For now I'm going to comment out some failing tests so we can keep moving... Expect regressions in rw? on nightly-testing!

[Kim Morrison]

Ah... and the changes to rw? in upstreaming have completely killed rw_search. Commented out the test suite for now, and will have to discuss with @Joe Hendrix on Monday.

[Joe Hendrix]

I'm traveling and so my ability to investigate is a bit limited, but there's an existing adaptation branch in lean-pr-testing-3719 that I think had working testing. Has that been merged in and found insufficient?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Missed that one, thank you!

[Kim Morrison]

I've merged it, but still all the tests are failing.

[Kim Morrison]

Unfortunately I can't got back to lean#3719 itself, as it never had full-ci, so there's no macos toolchain.

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

@Christian Merten, your changes from #11420 have caused breakages with the nightly. Is there any chance you would be able to checkout nightly-testing and see if you can see this fix quickly? I haven't looked yet past the error message.

[Kim Morrison]

(If you are able, feel free to just push changes direct to that branch.)

[Kim Morrison]

There was also a trivial-to-fix simp failure in EulerMascheroni, which I've just pushed a fix for.

[Kim Morrison]

Actually, @Christian Merten, it might be a trivial problem due to merge conflicgts.

[Kim Morrison]

Just checking out the master copy of MonCat/Limits into nightly-testing looks like it might work.

[Kim Morrison]

Scratch that, sorry.

[Christian Merten]

I think I have a fix, let me try.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Christian Merten]

Worked for MonCat, just need to fix it for the rest.

[github mathlib4 bot]

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[Kim Morrison]

tests affected by unused variables or pretty printer changes

[Kim Morrison]

@Kyle Miller, there is a bad interaction between variable? and the new unused variables linter. For now I'm just commenting out the test in test/Variable.lean on nightly-testing: could I drop investigating that on you?

[Joe Hendrix]

Scott Morrison said:

I've merged it, but still all the tests are failing.

I am taking a look at resolving this today.

[Kim Morrison]

Thanks! Let me know if there's anything I can do to help.

I'm sorry, I didn't really anticipate when we first talked about upstreaming rw? that you might get caught up by rw_search failures ... :-(

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[Kim Morrison]

Failures incoming from https://github.com/leanprover/lean4/pull/3767. :working_on_it:

[github mathlib4 bot]

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[Kim Morrison]

Sigh. This test failure (for rw_search) works locally for me. :-(

[Kim Morrison]

In CI it times out, locally it works with 200 heartbeats.

[github mathlib4 bot]

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[Kim Morrison]

This test looks like it is fixed in lean#3769, so should come good in a few hours.

[github mathlib4 bot]

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[Kim Morrison]

Okay, I'm out of time dealing with these rw? issues. This last one is my fault, a consequence of me messing with MVarId.refl and MVarId.applyRfl. I know what to do, but it may not happen until next week, so for now the failing test is just commented out.

[github mathlib4 bot]

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[Kim Morrison]

These failures are changes in the output of exact? on nightly-2024-03-27.

I think these changes are mostly for the worse, and we should try to remedy them.

[Kim Morrison]

@Joe Hendrix

[Kim Morrison]

Presumably these are changes in the order things come back from the DiscrTree in lean4#3769.

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Scott Morrison said:

These failures are changes in the output of exact? on nightly-2024-03-27.

I think these changes are mostly for the worse, and we should try to remedy them.

Oh, @Joe Hendrix, I forgot to mention this one when we just talked, but notice in that commit I had to double the heartbeat limit in test/observe.lean. This is one that Johan cares about a lot, as he often uses something close to this test file in Lean demo talks.

[github mathlib4 bot]

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[Joe Hendrix]

Scott Morrison said:

These failures are changes in the output of exact? on nightly-2024-03-27.

I think these changes are mostly for the worse, and we should try to remedy them.

I have a PR lean4#3818 that appears to return results closer to the original order. There's some discussion there on the change. One downside is that with the revised order the rewrite_search test below fails:

/-
info: Try this: rw [← @add_assoc, @add_right_comm, @add_assoc, @add_add_add_comm, ← @add_assoc, @add_right_comm]
-/
#guard_msgs (drop info) in
example [AddCommMonoid α] {a b c d : α} : (a + b) + (c + d) = a + d + c + b := by
  rw_search

I've traced this test case and I think it's ok to break this test case. The edit distance heuristics don 't currently seem well suited to AC rewriting and so I think this is a pretty brittle test case. I haven't compared it with the original implementation though so maybe there's some heuristic that helps I am missing.

[github mathlib4 bot]

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[Kim Morrison]

Quite a few things broken here. I will try to post a summary soon.

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[Kim Morrison]

Okay, I think we have a build (with sorries) incoming now. There appears to be a significant new performance problem, which we're going to have to track down.

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[Kim Morrison]

Here are the current sorrys on nightly-testing. I would really appreciate help getting to the bottom of these. Some may just need a fix or work around, others may required a minimisation / identification of a regression in Lean.

I'll post each one separately so people can use emojis to claim and release items. I'll ping the authors of files, but please don't consider these as either demands, or exclusive locks. :-)

In any of these files, just search for FIXME nightly-testing to locate the problem.

[Kim Morrison]

• Mathlib/AlgebraicGeometry/Pullbacks.lean: a type mismatch? @Andrew Yang?

[Kim Morrison]

• Mathlib/CategoryTheory/Limits/Shapes/Kernels.lean an @[ext] lemma no longer unifies. @Bhavik Mehta? @Markus Himmel?
• Mathlib/CategoryTheory/Limits/Shapes/KernelPair.lean: similarly

[Kim Morrison]

• Mathlib/CategoryTheory/Limits/Shapes/Pullbacks.lean: a convert that no longer goes through

[Kim Morrison]

• Mathlib/CategoryTheory/Limits/Shapes/Products.lean: some proofs were previously done by aesop_cat in an autoparam, but now fail.

[Kim Morrison]

• Mathlib/Combinatorics/SimpleGraph/AdjMatrix.lean: probably a broken simp

[Kim Morrison]

• Mathlib/Data/Multiset/FinsetOps.lean: a proof that used to be rfl

[Kim Morrison]

• Mathlib/Data/Polynomial/Basic.lean: an exact support_add that no longer works

[Kim Morrison]

• test/notation3.lean: looks like some beta reductions are needed? @Mario Carneiro or @Kyle Miller?

[Kim Morrison]

• test/Variable.lean: we're now getting an unused variable warning in variable?. @Kyle Miller?

[Mario Carneiro]

By the way, it would be good to summarize the upstream changes that are causing breakage in these threads

[Mario Carneiro]

(if you know what they are)

[Kim Morrison]

Yes: that's part of what we need to determine. For the problems above, I don't know yet.

[Kim Morrison]

There are also a lot of slow-downs requiring raising maxHeartbeats. There are all marked with Adaptation note: nightly-2024-04-01.

Hopefully these all have the same source, but again, I don't know yet what it is.

These problems occur in Algebra/Algebra/Operations, Algebra/Category/ModuleCat/ChangeOfRings, Algebra/Category/Ring/Limits, AlgebraicGeometry/GammaSpecAdjunction | Gluing | Spec, Combinatorics/SimpleGraph/Subgraph, Data/List/Intervals, FieldTheory/Extension | NormalClosure, LinearAlgebra/QuadraticForm/QuadraticModuleCat/Monoidal, Topology/ContinuousFunction/UniqueCFC, test/fun_prop2, and test/observe.

[Kim Morrison]

Oh, also rw_search is currently completely broken, but may be improved after https://github.com/leanprover/lean4/pull/3818. I haven't had a chance to test yet.

[Kyle Miller]

(AdjMatrix was pow_succ <-> pow_succ' in mathlib4#11451)

[Kim Morrison]

Great. I got quite a few of these, but apparently not all. :-)

[Kim Morrison]

The linter is also failing many times with synthInstance.maxHeartbeats problems; so I don't think we'll get a successful CI build until we sort that out.

[Kim Morrison]

The relevant nightly releases since we last had a build are:

• https://github.com/leanprover/lean4-nightly/releases/tag/nightly-2024-03-28
• https://github.com/leanprover/lean4-nightly/releases/tag/nightly-2024-03-29
• https://github.com/leanprover/lean4-nightly/releases/tag/nightly-2024-03-30
• https://github.com/leanprover/lean4-nightly/releases/tag/nightly-2024-04-01

I'm looking through these now for anything suspicious re: the above.

[Kim Morrison]

https://github.com/leanprover/lean4/pull/3807 landed during this period: it is meant to be a performance fix for isDefEq, but is so far the obvious suspect to slowdowns.

[Kim Morrison]

lean4#3816 is a possible cause for the unification failures in CategoryTheory.

[Kim Morrison]

Everything else in those nightlies looks pretty harmless to me.

[Kyle Miller]

test/notation3.lean was a good little puzzle — I completely forgot about the mathlib delaborator combinators

[Mario Carneiro]

what's breaking in them now?

[Kyle Miller]

It was just docs#Lean.PrettyPrinter.Delaborator.withBindingBodyUnusedName', but it took awhile to think to look at it.

[Kyle Miller]

@Mario Carneiro For variable?, do you know how to appease the unused variable linter here? It has unused_variables_ignore_fn, but I'm not sure that ever worked. Is there some hack we could use to cause the binders to be considered to be used?

[Mario Carneiro]

unused_variables_ignore_fn should be fixed on nightly

[Mario Carneiro]

IIRC the fix for that landed not long before the unused variables rewrite

[Kyle Miller]

Thanks, good to know. I think I found the problem, it's silly.

[Kyle Miller]

It had `Mathlib.Command.variable? instead of ``Mathlib.Command.Variable.variable?

[Mario Carneiro]

oops, where's our double backtick linter

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[Kim Morrison]

I am currently working on a minimisation of some of the timeouts.

[Kyle Miller]

Mathlib/CategoryTheory/Limits/Shapes/Pullbacks.lean looks like it could be from a change to the defeq algorithm? I had to insert a dsimp to get some types to unify.

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[Kim Morrison]

Could someone (@Eric Wieser?) please update quote4 to run on nightly-2024-04-02? It has a <- ... that (foot-gun!) always lifts out of an if, and as of nightly-2024-04-02 this is an error.

[Kim Morrison]

The error is in Match.lean, in makeMatchCode.

[Kim Morrison]

For anyone who would like to continue working on nightly-testing, I've made the branch nightly-testing-2024-04-01-WIP before nightly-testing moved to nightly-2024-04-02. It should still be possible to work on that until quote4 is fixed. nightly-testing itself is not viable until then.

(Edit: nightly-testing is more or less working again, so this has become irrelevant.)

[Kim Morrison]

(Also pinging @Gabriel Ebner in case they are available to fix quote4 problems.)

[Mario Carneiro]

I have merge rights if you want to send a PR

[Kim Morrison]

I have merge rights too, I'm just not excited about debugging quote4. :-)

[Eric Wieser]

Which line is the error on?

[Kim Morrison]

114

[Kim Morrison]

sorry, the real error is 115

[Kim Morrison]

the <- is not allowed in that position anymore, because it will always lift outside the if

[Eric Wieser]

I don't think that linter really makes sense here; "inside the if" is at runtime, and outside the if is at generation time

[Eric Wieser]

That is, the $() should be protecting the <-

[Eric Wieser]

So in summary: this is an easy workaround in Qq (lifting the expression outside manually), but core should not be complaining here

[Mario Carneiro]

there is a TODO in the core PR about this

[Mario Carneiro]

the current workaround is to just lift it manually

[Mario Carneiro]

I remember finding this in mathport even before this PR because of `(do $(<- trExpr)) stuff

[Mario Carneiro]

which does something... very strange IIRC

[Kim Morrison]

@Eric Wieser, could you please push the workaround?

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[Eric Wieser]

Mario Carneiro said:

I remember finding this in mathport even before this PR because of `(do $(<- trExpr)) stuff

Is there a tracking issue for this?

a mwe is:

import Lean
open Lean

def foo : MetaM (TSyntax ``Parser.Term.doSeq) := do `(Parser.Term.doSeq| pure 37)

-- fails
#check do `(do $(← foo))

-- ok
#check do
  let mkDo x := `(do $x)
  mkDo (← foo)

[Eric Wieser]

Filed as lean4#3827

[Eric Wieser]

Scott Morrison said:

Eric Wieser, could you please push the workaround?

Pushed in https://github.com/leanprover-community/quote4/pull/41; can you check that branch works on the latest lean?

[Kim Morrison]

Checked and merged.

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[Kim Morrison]

Okay, we are making good progress. We are now down to:

[Kim Morrison]

• AlgebraicGeometry/Pullbacks is failing in multiple places, almost surely because of the defeq abuse throughout AG interacting with the latest change to isDefEq.

[Kim Morrison]

• the rw_search tests are all broken, but hopefully mostly fixed in lean4#3818, which will land tonight

[Kim Morrison]

• there are still some slowdowns, but I've fixed the terrible ones. I'm not inclined to treat these as blockers.

[Kim Morrison]

Note that I'm now hoping that nightly-2024-04-04 can become v4.8.0-rc1, so deciding to leave these slowdowns in means that will be part of life for the next month.

[Kim Morrison]

@Andrew Yang, if you have any availability to look at def openCoverOfBase' in Mathlib/AlgebraicGeometry/Pullbacks.lean on the nightly-testing branch, that would be extremely helpful. I'm starting to look at it otherwise.

[Kim Morrison]

Ah, maybe have it sorted.

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[Andrew Yang]

Scott Morrison said:

Andrew Yang, if you have any availability to look at def openCoverOfBase' in Mathlib/AlgebraicGeometry/Pullbacks.lean on the nightly-testing branch, that would be extremely helpful. I'm starting to look at it otherwise.

Is this sorted out?

[Kim Morrison]

Yes, it is, thank you!

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[Kim Morrison]

Getting closer.

Remaining issues are

• rw_search completely broken, despite working on lean-pr-testing-3818 (and that having been merged)
• needing to minimize at least one of the new slowdowns. I have partial progress on that locally, but will need to keep working on that tomorrow.

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[Kim Morrison]

Finally!

[Kim Morrison]

However, still working on minimization of the timeouts.

[Kim Morrison]

Nevertheless, I will put up a PR so others can review the changes so far, with the understanding that our intention is to fix the timeouts before v4.8.0-rc1 (unless we don't. :-)

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[Kyle Miller]

A norm_num "regression" is that this fails now:

import Mathlib.Tactic.NormNum.Basic

example (h : 4 = 2) : False := by
  norm_num at h

A fix is to make sure Mathlib.Tactic.NormNum is imported. (In particular, import Mathlib.Tactic.NormNum.Eq)

[Kyle Miller]

There are some shake errors I'm not sure how to handle correctly, and there's a simpNF linter error I'm not sure how to debug.

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[Joe Hendrix]

Kyle Miller said:

A norm_num "regression" is that this fails now:

import Mathlib.Tactic.NormNum.Basic

example (h : 4 = 2) : False := by
  norm_num at h

A fix is to make sure Mathlib.Tactic.NormNum is imported. (In particular, import Mathlib.Tactic.NormNum.Eq)

On norm_num implementation side, I've noticed that norm_num appears to be using the simplifer with simp lemmas, but not simprocs.

That's not surprising given the age of norm num and recent additions of simprocs, and norm num appears to have its own version of simprocs such as the one for equality solving this.

I think your approach of making sure import Mathlib.Tactic.NormNum.Eq is in scope is a good one. A larger fix would be to support Lean core simprocs so norm_num's use of simp matches the simp elaborator. I don't anticipate needing to remove any additional successor simplification lemmas though.

There's also the possibility of Mathlib adding @[simp] back to the two lemmas that had removed it (see below), however simp will resume its old behavior which leads to timeouts on even moderately large Nat literals. I wouldn't personally recommend this.

attribute [simp] Nat.succ.injEq Nat.succ_sub_succ_eq_sub

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[Notification Bot]

7 messages were moved from this topic to #mathlib4 > norm_num vs simprocs by Eric Wieser.

[Eric Wieser]

I agree that ensuring import Mathlib.Tactic.NormNum.Eq is present is a totally reasonable fix

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[Kim Morrison]

Looks like it succeeded in CI, not sure why the bot didn't post.

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[Ruben Van de Velde]

It got as far as the counterexamples now, with what looks like an easy fix

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[Ruben Van de Velde]

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[Ruben Van de Velde]

Going to look why the bot doesn't work

[Ruben Van de Velde]

Oh, "Update the nightly-testing-YYYY-MM-DD branch" is failing

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[Ruben Van de Velde]

#11856 broke it

[Ruben Van de Velde]

(I'll try to debug a little)

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[github mathlib4 bot]

:working_on_it:: it looks like it's time to create a new bump/nightly-2024-04-12 branch from nightly-testing, and then PR that to "bump/v4.8.0".

[github mathlib4 bot]

:working_on_it:: it looks like it's time to create a new bump/nightly-2024-04-12 branch from nightly-testing, and then PR that to "bump/v4.8.0".

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[Kyle Miller]

Fixed, but depends on unmerged aesop#123.

[Kyle Miller]

There are a couple erws I had to include (marked them with adaptation notes). I don't understand exactly why, but they seem to have to do with List.map_pmap being applied in ways where pmap has to be unfolded.

[Kyle Miller]

Also, the lake-manifest had three copies of std4, and I pruned it.

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[Kyle Miller]

I'm very surprised that the changes to rcases/obtain (to make it so for Nat, you get 0 and n + 1 instead of Nat.zero and Nat.succ n') didn't have much fallout. It's possible that there are many uses of simp only [Nat.succ_eq_add_one, ...] that I didn't clean up.

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[Kim Morrison]

Aesop bump was required.

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:working_on_it:: it looks like it's time to create a new bump/nightly-2024-04-14 branch from nightly-testing, and then PR that to "bump/v4.8.0".

[Kim Morrison]

Well, we need to decide what to do with #11997 first. It still contains regressions from IsDefEq changes. I have a few local fixes that I will push to that branch (and thence to nightly-testing) soon, but far from all of them.

[Kim Morrison]

Any preferences from Mathlib maintainers how we handle this? Merge the regressions into bump/v4.8.0, to reduce the pain of keeping nightly-testing alive? Or not merge until we make further progress on these.

[Kim Morrison]

These regressions are blocking v4.8.0-rc1, so we do need to make progress here.

Enough of the timeouts reveal Mathlib over-using defeq that we can't just say "its lean4#3807's fault"...

[Ruben Van de Velde]

Unfortunately it's so big that it's pretty much unreviewable, and it seems we can't merge master into bump/v4.8.0 because master has already restored .def lemmas and bump/v4.8.0 doesn't support them.

How would you feel about this as a strategy to reduce the diff:

• merge #12097 into bump/v4.8.0 so that it at least builds
• I fix the conflicts on #11828 and #11829, we merge those into master, and cherry-pick them into bump/v4.8.0
• review the remaining diff in #11997 to see if we can apply that treatment to any other changes

and then I think we really do need to merge #11997 and make sure any remaining problems have issues filed

[Kim Morrison]

Great!

[Kim Morrison]

I am looking at #12097 now, hopefully merging soon.

[Kim Morrison]

@Ruben Van de Velde, the two FIXMEs on #12097 are going to resolve themselves on nightly-testing, because they are explaining how the proofs will break again, right?

[Kim Morrison]

'd #12097 into bump/v4.8.0

[Kim Morrison]

And I've merged master and optimistically resolved conflicts on both #11828 and #11829.

[Ruben Van de Velde]

Kim Morrison said:

Ruben Van de Velde, the two FIXMEs on #12097 are going to resolve themselves on nightly-testing, because they are explaining how the proofs will break again, right?

Yes, exactly

[Ruben Van de Velde]

Thanks!

[Kim Morrison]

Okay, I see #11828 has been closed (not much diff left). I've :peace_sign:'d #11829, but may need to go to bed before CI is finished: feel free to merge as soon as it is good.

[Kim Morrison]

Also, once it lands on master if you want to cherry-pick it over to bump/v4.8.0 that would be great. Otherwise I'll resume tomorrow.

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[Eric Wieser]

it seems we can't merge master into bump/v4.8.0 because master has already restored .def lemmas and bump/v4.8.0 doesn't support them.

What do you mean by this?

[github mathlib4 bot]

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[Eric Wieser]

Also, how does this thread differ from #nightly-testing > Mathlib status updates (plural)?

[github mathlib4 bot]

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[Ruben Van de Velde]

Kim Morrison said:

Also, once it lands on master if you want to cherry-pick it over to bump/v4.8.0 that would be great. Otherwise I'll resume tomorrow.

#12158 for the cherry-pick; I can't push to the bump branch directly

[Ruben Van de Velde]

Eric Wieser said:

it seems we can't merge master into bump/v4.8.0 because master has already restored .def lemmas and bump/v4.8.0 doesn't support them.

What do you mean by this?

bump/v4.8.0 is currently on a nightly that doesn't allow definitions called Foo.def (e.g. IsRoot.def). We renamed those on master, but apparently we renamed them back as well

[github mathlib4 bot]

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[Kim Morrison]

Eric Wieser said:

Also, how does this thread differ from #nightly-testing > Mathlib status updates (plural)?

There are two different bots, that apparently disagree on the name...

[Kim Morrison]

PR'd and bors'd in #12165.

[Kim Morrison]

Also, I've just merged the streams.

[Kim Morrison]

github mathlib4 bot said:

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

Not sure what happened here, CI is marked as cancelled.

[Kim Morrison]

Kim Morrison said:

Also, once it lands on master if you want to cherry-pick it over to bump/v4.8.0 that would be great. Otherwise I'll resume tomorrow.

Okay, I've cherry-picked b8a0f589c3ef08ae093d7d1896142e5eb05e599a, which had been "chore: avoid id.def (adaptation for nightly-2024-03-27) #11829" onto bump/v4.8.0.

[Kim Morrison]

The diff for #11997 (the PR to bump/v4.8.0 bringing us to 04-07) is now slightly smaller, but still substantial: 270 files.

I need to take a break for about an hour, but will get back to this then. I think reducing / reviewing / approving the remaining diff is the main work at the moment for nightly-testing.

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[Kyle Miller]

Oops, I didn't know about the bump branch. I got nightly-testing building though, hopefully there's little accidental duplicated effort.

[github mathlib4 bot]

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[github mathlib4 bot]

:working_on_it:: it looks like it's time to create a new bump/nightly-2024-04-14 branch from nightly-testing, and then PR that to "bump/v4.8.0".

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[github mathlib4 bot]

:working_on_it:: it looks like it's time to create a new bump/nightly-2024-04-14 branch from nightly-testing, and then PR that to "bump/v4.8.0".

[Joachim Breitner]

Quite noisy bot…

BTW, have you considered doing only one master -> nightly-testing merge per day, maybe 12h after the tool chain bump?

More time to focus on getting it to work without bots interfering, less noise on the branch and here, at the cost of having a slightly worse time when a commit on master broke it and you need to find which one.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[github mathlib4 bot]

:working_on_it:: it looks like it's time to create a new bump/nightly-2024-04-14 branch from nightly-testing, and then PR that to "bump/v4.8.0".

[Kim Morrison]

Ah, the two bots are now interacting in a bad way. The success bot knows to not say anything if it was the last person to speak. The PR reminder bot gets it in the way, because it always speaks... Sad. Ideally the reminder bot would only post once.

[Kim Morrison]

Okay, I've just made #12176, which backports a bunch more changes to master. If someone is available to quickly review and merge that, that would be great. Once it lands on master we can cherry-pick it to bump/v4.8.0.

[Kim Morrison]

github mathlib4 bot said:

:working_on_it:: it looks like it's time to create a new bump/nightly-2024-04-14 branch from nightly-testing, and then PR that to "bump/v4.8.0".

I guess I will just obey the bot, it is making a reasonable suggestion!

[Kim Morrison]

Hmm, I made a bump/nightly-2024-04-14 branch from nightly-testing, but it is completely unreviewable as a PR to bump/v4.8.0 until we are able to merge master to bump/v4.8.0 again, i.e. after getting #11997 in.

[Markus Himmel]

Kim Morrison said:

Okay, I've just made #12176, which backports a bunch more changes to master. If someone is available to quickly review and merge that, that would be great. Once it lands on master we can cherry-pick it to bump/v4.8.0.

Maybe I'm misunderstanding the diff that GitHub is showing me, but it seems to be that the PR is partially reverting some recent commits to mathlib.

[Kim Morrison]

Sorry, I completely botched it. Trying again now. :-(

[Eric Wieser]

Kim Morrison said:

Ah, the two bots are now interacting in a bad way. The success bot knows to not say anything if it was the last person to speak. The PR reminder bot gets it in the way, because it always speaks... Sad. Ideally the reminder bot would only post once.

Perhaps two threads is reasonable after all? One could be "Mathlib bump branch reminders" or something

[Ruben Van de Velde]

There was a simp? says failure in #12176, I just removed the says since it doesn't seem useful

[Ruben Van de Velde]

I had also started doing the same; I'll make a PR once this is in

[Ruben Van de Velde]

#12176 is green, if anyone can merge it

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[Kim Morrison]

Kim Morrison said:

Sorry, I completely botched it. Trying again now. :-(

Okay, I've had another go at #12176. Could someone review it please?

[Ruben Van de Velde]

Oh, why? It was on the bors queue

[Kim Morrison]

Oops, sorry, I should have checked the comments. Not having a great day today, it seems. I backported more id.def --> id or _root_.id replacements as well.

[Kim Morrison]

I'll put it back on the queue.

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:working_on_it:: it looks like it's time to create a new bump/nightly-2024-04-16 branch from nightly-testing, and then PR that to "bump/v4.8.0".

[github mathlib4 bot]

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[github mathlib4 bot]

:working_on_it:: it looks like it's time to create a new bump/nightly-2024-04-16 branch from nightly-testing, and then PR that to "bump/v4.8.0".

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[Ruben Van de Velde]

(It turns out we use a lot of autogenerated instance names)

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[Ruben Van de Velde]

Oh, neat, rw? no longer inserts @ everywhere

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[Kyle Miller]

Ruben Van de Velde said:

(It turns out we use a lot of autogenerated instance names)

I was really confused about how there were still instance names to fix, since I made sure to have a mathlib bump PR, but it turns out that there were still some old instance names hiding out inside of Init that didn't get updated until Lean's stage0 was updated.

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[Kim Morrison]

Just needed a lake update after fixing Std.

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[Kim Morrison]

More fallout from lean4#3960.

[Kim Morrison]

@Mario Carneiro, I pushed an icky fix to UInt8.toChar in Mathlib/Data/UInt.lean on nightly-testing, to adapt to your lean4#3960. Would you mind taking a look and pushing a better proof if appropriate?

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[Kim Morrison]

First step is to merge the lean-pr-testing-3951 branches to Std/Aesop/Mathlib

[Kim Morrison]

@Mac Malone, lake update on nightly-testing is persistently duplicating entries in lake-manifest.json. Could you take a look?

[Ruben Van de Velde]

@Kim Morrison sorry, I already pushed fixes to the two errors in the log, but it seems like lean-pr-testing-3951 doesn't have code changes in mathlib?

[Kim Morrison]

I think all it has it changes to the lakefile, to use the lean-pr-testing-3951 branches in Std and Aesop

[Kim Morrison]

I've just merged those back into nightly-testing.

[Ruben Van de Velde]

Oh right, std and mathlib build in parallel, so seeing errors in mathlib doesn't prove that all of std works

[Kim Morrison]

Oh, crap! lean4#3951 didn't actually make it into this nightly...

[Kim Morrison]

It missed by just a bit.

[Kim Morrison]

hmm.

[Kim Morrison]

No big deal, I think I unwound it okay.

[Kim Morrison]

But there are real errors on nightly-testing, presumably because of the latest IsDefEq changes!

[Ruben Van de Velde]

I wonder if we should expect things like this to work

Error: ././././Mathlib/Order/CompleteLatticeIntervals.lean:253:38: error: invalid constructor ⟨...⟩, expected type must be an inductive type
  ?m.31195 c'
Error: ././././Mathlib/Order/CompleteLatticeIntervals.lean:255:36: error: application type mismatch
  And.intro b.property
argument
  b.property
has type
  ↑b ∈ Iic a : Prop
but is expected to have type
  ?m.32594 ≤ ?m.32595 : Prop

[Kim Morrison]

Hmmm, I haven't worked out CompleteLatticeIntevals yet, but there are various problems with Lean no longer being able to infer a _...

[Kim Morrison]

Ah, got CompleteLatticeIntervals.

[Kim Morrison]

It just needs two (α := α).

[Kim Morrison]

Oh, curious, weird interaction of named arguments and dot notation, you can write f (x :=y).h and it is interpreted as (f (x := y)).h.

[Kim Morrison]

I am pausing for a bit. If anyone would like to pick up nightly-testing, there are currently errors in

• Mathlib/Algebra/Module/LinearMap/Basic.lean
• Mathlib/GroupTheory/CoprodI.lean
• Mathlib/Order/RelSeries.lean

[Kim Morrison]

It seems Lean has got a bit worse at guessing some implicit arguments, but I don't yet understand any pattern in the regressions so far...

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[Kim Morrison]

Kim Morrison said:

It seems Lean has got a bit worse at guessing some implicit arguments, but I don't yet understand any pattern in the regressions so far...

I think these are going to count as bug reports for Lean, so perhaps for now there is not much need to keep pushing nightly-testing forward, but rather to create minimizations of the regressions that I've already pushed to nightly-testing.

[Kim Morrison]

It's late here, but these will be my plan tomorrow!

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[Ruben Van de Velde]

aesop is failing cc @Kyle Miller

Error: ././.lake/packages/aesop/././Aesop/Util/Basic.lean:367:7: error: invalid field 'isEmpty', the environment does not contain 'Lean.MessageData.isEmpty'

[Kyle Miller]

@Joachim Breitner removed MessageData.isEmpty in lean4#3951

[Damiano Testa]

Oh, I think that the have vs let linter also uses it.

[Joachim Breitner]

There should be lean-pr-testing-3951 branches around, though

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[Kim Morrison]

I've just undone some changes on nightly-testing that were needed to cope with lean4#3965, as we're hoping that lean4#3977 arriving tonight will obviate the need for them. nightly-testing will remain broken in the meantime, however.

[Kim Morrison]

Joachim Breitner said:

There should be lean-pr-testing-3951 branches around, though

Merged into aesop's nightly-testing, and bumped Mathlib's nightly-testing

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[Ruben Van de Velde]

Waiting for someone to fix Std, I guess

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[Kim Morrison]

A short update: lots of stuff is bad on nightly-testing still: the recent changes to IsDefEq in lean4#3965 and lean4#3977 have being playing tug-of-war with Mathlib, and there are still lots of slow-downs. Leo still has one more fix in the works that hasn't hit the lean4 repo. Being extremely optimistic, this will fix everything.

Pessimistically, we have a ways to go and need to do more minimization of the issues on nightly-testing.

If anyone wants to have a look for either Adaptation note: 2024-04-23 or FIXME: nightly-testing on the nightly-testing branch, and at any of those occurrences, try to minimize what's going on, that would be amazing. This is my plan tomorrow/Monday...

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[Ruben Van de Velde]

I'll take a look now if I can get anywhere

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[Ruben Van de Velde]

I opened #12466 to backport clear defeq abuse fixes; feel free to review or push similar fixes to it

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[Ruben Van de Velde]

Stepping away for a bit

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[Ruben Van de Velde]

I'll apply @Kevin Buzzard's changed from #12469 to nightly-testing

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[Ruben Van de Velde]

Okay, mathlib builds. Thanks @Kevin Buzzard for the clue!

[Kevin Buzzard]

You can thank the gods of chance! Or the guy who asked the community to look at GammaSpecAdjunction :-)

[Ruben Van de Velde]

:dice:

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[Ruben Van de Velde]

Linter issues and some unused imports if someone wants to look at them

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[Kim Morrison]

This "success" still contains some sorrys, and many "adaptation note"s about significant slowdowns! We're not quite there yet. But it's progress!

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[Kim Morrison]

I've intentionally borked nightly-testing for the next ~2-3 hours, by starting to compile it against lean4#4008.

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[Kim Morrison]

@Ruben Van de Velde, I saw on nightly-testing in Mathlib/AlgebraicGeometry/FunctionField.lean you added

-- Adaptation note: 2024-04-23

but with no further text. Could you make sure that adaptation notes include some explanation of what changed, so that it's not necessary to look at the git history to understand what happened?

[Kim Morrison]

Similarly in AlgebraicGeometry/Properties and MeasureTheory/Covering/Differentation

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[Michael Stoll]

It looks like the new option is not visible in (some files in) Mathlib?

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[Kim Morrison]

Michael Stoll said:

It looks like the new option is not visible in (some files in) Mathlib?

Should be momentarily: I was pushing to nightly-testing use a local overriden toolchain.

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[Michael Stoll]

Looks like rw [Ne.def, ...] causes a problem here? (In Mathlib.Data.Nat.Factors: replicate_subperm_factors_iff, which is pretty recent... @Ruben Van de Velde )

[Ruben Van de Velde]

Please replace by rw [Ne, ...

[Michael Stoll]

This seems to be working. Can I push to this branch?

[Michael Stoll]

Mathlib.CategoryTheory.Iso has a problem as well, but the only message I see is

error: external command `/home/mstoll/.elan/toolchains/leanprover--lean4---nightly-2024-04-28/bin/lean` exited with code 139

[Michael Stoll]

Michael Stoll said:

This seems to be working. Can I push to this branch?

Or should somebody make a PR to Mathlib fixing this? (It seems to be the only Ne.def in Mathlib.)

[Ruben Van de Velde]

Go ahead and push to nightly-testing

[Michael Stoll]

Done. Should I also make a PR to Mathlib? (Once the build finishes...)

[Ruben Van de Velde]

You can, but it's not really needed

[Michael Stoll]

Then I won't.

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[Michael Stoll]

Michael Stoll said:

Mathlib.CategoryTheory.Iso has a problem as well, but the only message I see is

error: external command `/home/mstoll/.elan/toolchains/leanprover--lean4---nightly-2024-04-28/bin/lean` exited with code 139

The strange thing is that when looking at this file in VSCode, it compiles without problems.

[Michael Stoll]

I've had a look at Mathlib.NumberTheory.RamificationInertia (the file I was experimenting with in #12412). Replacing two _s by explicit arguments makes the two declarations that had become very slow fairly fast. (I had already done that in #12412.)

I see that most of the slow Subsingleton instances are gone (with one exception), but Module, AddCommMonoid and AddMonoidHomClass are still often slow.

[Michael Stoll]

Overall, it looks like typeclass inference only takes 50% of the time it took before lean4#4003.

[Michael Stoll]

Michael Stoll said:

exited with code 139

What is the meaning of this error code?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Michael Stoll]

Michael Stoll said:

Michael Stoll said:

exited with code 139

What is the meaning of this error code?

Adding the lines

set_option profiler true
set_option profiler.threshold 1

near the beginning of the file makes lake build Mathlib.CategoryTheory.Iso succeed (but, of course, noisy), whereas leaving out set_option profiler.threshold 1 still produces the error. :shrug:

[Michael Stoll]

It complies with the threshold set to 9, but not with 10.

[Michael Stoll]

(deleted)

[Michael Stoll]

When I put #exit before line 67

attribute [reassoc (attr := simp)] Iso.hom_inv_id Iso.inv_hom_id

it builds, but when I put it after, it doesn't. So the problem seems to be with that line.

There is a note (lines 279-287)

-- FIXME putting @[reassoc] on the `hom_inv_id` above somehow unfolds `inv`
-- This happens even if we make `inv` irreducible!
-- I don't understand how this is happening: it is likely a bug.

-- attribute [reassoc] hom_inv_id inv_hom_id
-- #print hom_inv_id_assoc
--   theorem CategoryTheory.IsIso.hom_inv_id_assoc {X Y : C} (f : X ⟶ Y) [I : IsIso f]
--     {Z : C} (h : X ⟶ Z),
--     f ≫ Classical.choose (_ : Exists fun inv ↦ f ≫ inv = 𝟙 X ∧ inv ≫ f = 𝟙 Y) ≫ h = h := ...

which may indicate that there have been problems with reassoc before. I'm out of my depth here.

[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Leo has just added some further flags for disabling some of the IsDefEq changes made recently. They seem to be effective in dealing with slow-downs.

My plan:

• Install these flags (today even, before the nightly is released, using a local elan override set, which means nightly-testing won't work for others until about +10 hours from now)
• Hope that Mathlib is happy with in the short term keeping these flags in the problematic places (~30), even on master
• Continue minimizing the examples where these flags are necessary, with the hope that we can continue to work on IsDefEq.

It's going to be a bit messy in the short term, but I think we're already going to see some big speedups overall. (e.g. @Michael Stoll's noticing what a big effect lean4#4003 has already had).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Michael Stoll said:

Michael Stoll said:

Michael Stoll said:

exited with code 139

What is the meaning of this error code?

Adding the lines

set_option profiler true
set_option profiler.threshold 1

near the beginning of the file makes lake build Mathlib.CategoryTheory.Iso succeed (but, of course, noisy), whereas leaving out set_option profiler.threshold 1 still produces the error. :shrug:

These errors are fallout from lean4#4006. Fix in the works.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

@Michael Stoll, thanks for your recent help on nightly-testing.

Also, though, a request about writing adaptation notes: it's really helpful if they can be understood without reading the git history.

You wrote:

-- Adaptation note: 2024-04-28
-- replacing the `_` by `P` makes it fast (compare #12412)
@[simp]
theorem Quotient.algebraMap_quotient_of_ramificationIdx_neZero (x : R) :
    algebraMap (R ⧸ p) (S ⧸ P) (Ideal.Quotient.mk p x) = Ideal.Quotient.mk P (f x) := rfl

but notice here there is no _ after the edit, and several Ps. I'm guessing that it is the P in the RHS, but this is not as obvious as it could be.

[Kim Morrison]

(I've updated this note.)

[Kim Morrison]

Separately: there is no linkifier in VSCode, so writing https://github.com/leanprover-community/mathlib4/pull/12412 in a comment is much more useful than writing #12412.

[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Michael Stoll]

Kim Morrison said:

Separately: there is no linkifier in VSCode, so writing https://github.com/leanprover-community/mathlib4/pull/12412 in a comment is much more useful than writing #12412.

@Kim Morrison Thanks for the tips; I'm doing this for the first time...

[Kim Morrison]

(As above, very much appreciated.)

[Johan Commelin]

Should we have #adaptation_note that complains

• If there is a spelling mistake in adaptation_note (atm grep will not find Adapation notes)
• If there is no version number?
• If there is no date?
• If there is no free-form comment...

[Johan Commelin]

I'm mostly worried about the first bullet point.

[Kim Morrison]

Seems reasonable. Want to implement it? :-)

[Johan Commelin]

I'll put it on my Hilbert ~hotel~ todo list

[Kim Morrison]

I think we need a technical debt list of lists maintained somewhere, and this can be a bullet point there.

[Michael Rothgang]

Kim Morrison said:

I think we need a technical debt list of lists maintained somewhere, and this can be a bullet point there.

Making this list on github is on my TODO list - I can pinky promise to do this by end of June. I've noted this item for it :-)

[Kim Morrison]

Gah, lean4#4021 failed, and didn't make it into the nightly, so nightly-testing is probably borked for another day. :-(

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Despite all the red crosses, we are actually close to converging here.

[Kim Morrison]

Unfortunately the "exit code 139" crash that appeared in lean4#4006 has not been resolved, but we at least know how to suppress it (lean4#4021), and we're working on diagnosing the underlying problem. (We discovered one bug in lean4#4028, but that doesn't seem to be the source.)

[Kim Morrison]

When nightly-2024-04-30 lands tonight, I think nightly-testing should come green again.

[Kim Morrison]

There are quite a few uses of the new backwards compatibility flags on nightly-testing, and my current intention is that we will merge these with master, and deal with them on an ongoing basis.

[Kim Morrison]

• There are currently 5 files that require a set_option backward.isDefEq.lazyProjDelta false in to avoid a timeout. This flag locally reverts the changes to isDefEq from lean4#3965.
• There are currently 19 files that requies a set_option backward.isDefEq.lazyWhnfCore false in to avoid a timeout. (lean4#4023 is a minimization of one of these, and Leo is actively looking at this.) This flag locally reverts the changes to isDefEq from lean4#4004.
• There are two files (Mathlib.AlgebraicGeometry.Spec (a known offender with deep defeq abuse) and Mathlib.Geometry.Manifold.VectorBundle (an otherwise nice show case of @Heather Macbeth and @Floris van Doorn's work) which now have new timeouts (i.e. we set maxHeartbeats higher).
  • In Spec, lazyWhnfCore helps, but even with that it requires 800,000 heartbeats (i.e. 4x the limit).
  • In VectorBundle the backwards compatibility flags don't make much difference, but it's also not much over the limit.
• There are 34 files that require a set_option backward.synthInstance.canonInstances false in to avoid a timeout. I haven't looked at this at all yet, but am not too worried. This flag locally reverts the changes to typeclass search from lean4#4003, prompted by the issue raised in lean4#3996. This change will hopefully give a big speedup overall, so these flags are small cost. I am really hoping that "the community" will be keen to look into these flags and find ways to remove them.

[Kim Morrison]

I would like to get feedback on merging these backwards compatibility flags into master. I think it is the right approach, but some +1s would be great.

[Kim Morrison]

Finally, at this point we have a long period (2 months) of divergence between nightly-testing and master, and I'm pretty worried about bad merges polluting nightly-testing. I'm going to make a new PR from nightly-testing to bump/v4.8.0 shortly, and I would appreciate careful eyes looking at that diff. Hopefully we can merge that even tonight! After that I think I'll open a PR from bump/v4.8.0 to master (even before v4.8.0-rc1 is out), so we can also get some eyes on that.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Damiano Testa]

Kim, in case it is helpful, the no_lost_declarations script on nightly-testing reports

• - def add.add := True
• - def backwardWeight := 1
• - def buildDiscrTree : IO (DiscrTreeCache (Name × Bool × Nat)) :=
• - def cachePath : IO FilePath :=
• + def compute_rfl? (n : SearchNode) : MetaM SearchNode := do
• - def compute_rfl? (n : SearchNode) : MetaM SearchNode := withMCtx n.mctx do
• + def cons (a : α) (v : Vector3 α n) : Vector3 α (n + 1) := fun i => by
• - def cons (a : α) (v : Vector3 α n) : Vector3 α (succ n) := fun i => by
• + def consElim {C : Vector3 α (n + 1) → Sort u} (H : ∀ (a : α) (t : Vector3 α n), C (a :: t))
• - def consElim {C : Vector3 α (succ n) → Sort u} (H : ∀ (a : α) (t : Vector3 α n), C (a :: t))
• - def discrTreeConfig : WhnfCoreConfig := {}
• - def foldlM {α : Type} {m} [Monad m] (f : α → Expr → m α) (x : α) (e : Expr) : m α :=
• - def Foo.foo := True
• - def forwardWeight := 2
• + def head (v : Vector3 α (n + 1)) : α :=
• - def head (v : Vector3 α (succ n)) : α :=
• - def iffOfEq (mvarId : MVarId) : MetaM MVarId := do
• + def insert (a : α) (v : Vector3 α n) (i : Fin2 (n + 1)) : Vector3 α (n + 1) := fun j =>
• - def insert (a : α) (v : Vector3 α n) (i : Fin2 (succ n)) : Vector3 α (succ n) := fun j =>
• - def localHypotheses (except : List FVarId := []) : MetaM (Array (Expr × Bool × Nat)) := do
• - def processLemma (name : Name) (constInfo : ConstantInfo) :
• - def proofIrrelHeq (mvarId : MVarId) : MetaM Bool :=
• - def propext (mvarId : MVarId) : MetaM MVarId := do
• - def RewriteResult.by? (r : RewriteResult) : Option Expr :=
• - def RewriteResult.computeRfl (r : RewriteResult) : MetaM RewriteResult := do
• - def RewriteResult.ppResult (r : RewriteResult) : MetaM String :=
• - def RewriteResult.prepare_ppResult (r : RewriteResult) : MetaM RewriteResult := do
• - def rewritesCore (hyps : Array (Expr × Bool × Nat))
• - def rewritesDedup (hyps : Array (Expr × Bool × Nat))
• - def rewrites (hyps : Array (Expr × Bool × Nat))
• - def _root_.Lean.MVarId.liftReflToEq (mvarId : MVarId) : MetaM MVarId := do
• - def roots : Array FilePath :=
• + def roots : Array FilePath := #["Mathlib.lean"]
• - def solveByElim (goals : List MVarId) (depth : Nat := 6) : MetaM PUnit := do
• - def subsingletonElim (mvarId : MVarId) : MetaM Bool :=
• + def tail (v : Vector3 α (n + 1)) : Vector3 α n := fun i => v (fs i)
• - def tail (v : Vector3 α (succ n)) : Vector3 α n := fun i => v (fs i)
• + def testConst : Nat := 4
• + def toChar (n : UInt8) : Char := ⟨n.toUInt32, .inl (n.1.2.trans (by decide))⟩
• - def toChar (n : UInt8) : Char := ⟨n.toUInt32, toChar_aux n.1 n.1.2⟩
• - def traverseChildren [Applicative M] (f : Expr → M Expr) : Expr → M Expr
• - def withBindingBody' (n : Name) (x : Expr → m α) : m α := do
• - def zero : Nat := 0
• - inductive SideConditions
• - instance : AddCommGroup (Completion α) :=
• + instance : CoeTC (M →+[R] M₃) (M →ₗ[R] M₃) :=
• - instance : CompleteSpace ℝ := by
• - instance : Denumerable ℚ := by
• - instance : EuclideanDomain R[X] :=
• - instance : HasQuotient R (Ideal R) :=
• + instance instAddCommGroup : AddCommGroup (Completion α) :=
• - instance instCoeTCLinearMap : CoeTC (M →+[R] M₃) (M →ₗ[R] M₃) :=
• + instance instDecidableEq [DecidableEq α] : DecidableEq (Booleanisation α) :=
• - instance instDecidableEq [DecidableEq α] : DecidableEq (Booleanisation α) := Sum.instDecidableEqSum
• + instance instDenumerable : Denumerable ℚ := by
• + instance instEuclideanDomain : EuclideanDomain R[X] :=
• + instance instHasQuotient : HasQuotient R (Ideal R) :=
• + instance instIsScalarTowerOfSMul [SMul M N] [∀ i, IsScalarTower M N (α i)] :
• + instance instIsScalarTowerOfSMul [SMul M N] [IsScalarTower M N α] : IsScalarTower M N (Option α) :=
• + instance instIsScalarTowerOfSMul [SMul R S] : IsScalarTower R S PUnit :=
• + instance instMulProd {M N} [Mul M] [Mul N] : Mul (M × N) := ⟨fun p q ↦ ⟨p.1 * q.1, p.2 * q.2⟩⟩
• - instance {M N} [Mul M] [Mul N] : Mul (M × N) := ⟨fun p q ↦ ⟨p.1 * q.1, p.2 * q.2⟩⟩
• + instance Real.instCompleteSpace : CompleteSpace ℝ := by
• + instance : SmallCategory (HomAsType α) := inferInstanceAs <| SmallCategory (ShrinkHoms _)
• - instance : SmallCategory (HomAsType α) := ShrinkHoms.instCategoryShrinkHoms.{0} _
• - instance [SMul M N] [∀ i, IsScalarTower M N (α i)] : IsScalarTower M N (Σi, α i) :=
• - instance [SMul M N] [IsScalarTower M N α] : IsScalarTower M N (Option α) :=
• - instance [SMul R S] : IsScalarTower R S PUnit :=
• + instance {β : Type*} {C : β → Type*} [∀ b, TopologicalSpace (C b)]
• + lemma harmonic_eq_sum_Icc {n : ℕ} : harmonic n = ∑ i in Finset.Icc 1 n, (↑i)⁻¹ := by
• - lemma harmonic_eq_sum_Icc {n : ℕ} : harmonic n = ∑ i in Finset.Icc 1 n, (↑i)⁻¹ := by
• + lemma one_lt_succ_succ (n : ℕ) : 1 < n.succ.succ := succ_lt_succ <| succ_pos n
• - lemma pred_eq_sub_one (n : ℕ) : pred n = n - 1 := rfl
• - lemma prime_of_prime (n : ℕ) : Prime n ↔ Nat.Prime n := by
• + lemma rec_add_one {C : ℕ → Sort*} (h0 : C 0) (h : ∀ n, C n → C (n + 1)) (n : ℕ) :
• + lemma stdSimplex_fin_two :
• - lemma stdSimplex_fin_two : stdSimplex 𝕜 (Fin 2) = [Pi.single 0 1 -[𝕜] Pi.single 1 1] := by
• - structure RewriteResult where
• + theorem add_one_pos (n : ℕ) : 0 < n + 1 := succ_pos n
• + theorem and_or_imp {a b c : Prop} : a ∧ b ∨ (a → c) ↔ a → b ∨ c := Decidable.and_or_imp
• + theorem antidiagonalTuple_zero_succ (n : ℕ) : antidiagonalTuple 0 (n + 1) = [] :=
• - theorem antidiagonalTuple_zero_succ (n : ℕ) : antidiagonalTuple 0 n.succ = [] :=
• + theorem append_insert (a : α) (t : Vector3 α m) (v : Vector3 α n) (i : Fin2 (n + 1))
• - theorem append_insert (a : α) (t : Vector3 α m) (v : Vector3 α n) (i : Fin2 (succ n))
• + theorem bagInter_consecutive (n m l : Nat) :
• - theorem bagInter_consecutive (n m l : Nat) : @List.bagInter ℕ instBEq (Ico n m) (Ico m l) = [] :=
• - theorem beq_comm {α} [BEq α] [LawfulBEq α] {a b : α} : (a == b) = (b == a) :=
• - theorem beq_eq_decide_eq {α} [BEq α] [LawfulBEq α] [DecidableEq α]
• - theorem cast_add [AddMonoidWithOne R] (m n : ℕ) : ((m + n : ℕ) : R) = m + n := by
• + theorem cast_add_one_ne_zero (n : ℕ) : (n + 1 : R) ≠ 0 :=
• - theorem cast_add_one_ne_zero (n : ℕ) : (n + 1 : R) ≠ 0 := by
• + theorem cast_add {R : Type*} [AddMonoidWithOne R] (m n : ℕ) : ((m + n : ℕ) : R) = m + n := by
• - theorem coe_iff_coe : ∀ {a b : Bool}, (a ↔ b) ↔ a = b := by decide
• - theorem cond_decide {α} (p : Prop) [Decidable p] (t e : α) :
• - theorem cond_eq_ite {α} (b : Bool) (t e : α) : cond b t e = if b then t else e := by
• - theorem cond_not {α} (b : Bool) (t e : α) : cond (!b) t e = cond b e t := by cases b <;> rfl
• - theorem cond_self.{u} {α : Type u} (b : Bool) (a : α) : cond b a a = a := by cases b <;> rfl
• + theorem cons_head_tail (v : Vector3 α (n + 1)) : (head v :: tail v) = v :=
• - theorem cons_head_tail (v : Vector3 α (succ n)) : (head v :: tail v) = v :=
• - theorem decide_and (p q : Prop) [Decidable p] [Decidable q] : decide (p ∧ q) = (p && q) := by
• - theorem decide_coe (b : Bool) {h} : @decide b h = b := by
• - theorem decide_or (p q : Prop) [Decidable p] [Decidable q] : decide (p ∨ q) = (p || q) := by
• - theorem default_bool : default = false :=
• - theorem dist.def (n m : ℕ) : dist n m = n - m + (m - n) :=
• + theorem eval_of (n : ℕ) (x : M) : eval I M n (of I M x) = mkQ (I ^ n • (⊤ : Submodule R M)) x :=
• - theorem eval_of (n : ℕ) (x : M) : eval I M n (of I M x) = mkQ _ x :=
• + theorem Fintype.card_exp_univ_card_eq [Fintype α] [Fintype β] :
• + theorem foo (n : Nat) : makeSingleton n = [0] := by
• - theorem getD_cons_succ : getD (x :: xs) (n + 1) d = getD xs n d :=
• - theorem getD_cons_zero : getD (x :: xs) 0 d = x :=
• - theorem getD_nil : getD [] n d = d :=
• + theorem homOfLE_refl {x : X} (h : x ≤ x) : h.hom = 𝟙 x :=
• - theorem homOfLE_refl {x : X} : (le_refl x).hom = 𝟙 x :=
• - theorem imp_and_neg_imp_iff (p q : Prop) : (p → q) ∧ (¬p → q) ↔ q := by
• + theorem imp_and_neg_imp_iff (p q : Prop) : (p → q) ∧ (¬p → q) ↔ q := by simp
• + theorem imp_iff_right_iff {a b : Prop} : (a → b ↔ b) ↔ a ∨ b := Decidable.imp_iff_right_iff
• + theorem index_exists {j : ℕ} (h : j < n) : ∃ i : ℕ, j < c.sizeUpTo (i + 1) ∧ i < c.length := by
• - theorem index_exists {j : ℕ} (h : j < n) : ∃ i : ℕ, j < c.sizeUpTo i.succ ∧ i < c.length := by
• + theorem insert_fs (a : α) (b : α) (v : Vector3 α n) (i : Fin2 (n + 1)) :
• - theorem insert_fs (a : α) (b : α) (v : Vector3 α n) (i : Fin2 (succ n)) :
• + theorem isEmpty_exists_isempty_fun : (∃ (_ : α), IsEmpty β) ↔ Nonempty α ∧ IsEmpty β := by
• - theorem isEmpty_fun : IsEmpty (α → β) ↔ Nonempty α ∧ IsEmpty β := by
• + theorem isEmpty_fun : IsEmpty (α → β) ↔ Nonempty α ∧ IsEmpty β := by simp
• - theorem ite_eq_false_distrib (c : Prop) [Decidable c] (a b : Bool) :
• - theorem ite_eq_true_distrib (c : Prop) [Decidable c] (a b : Bool) :
• + theorem length_split_fst_le (l : List α) : length (split l).1 ≤ length l :=
• + theorem length_split_snd_le (l : List α) : length (split l).2 ≤ length l :=

[Damiano Testa]

• + theorem measure_fundamentalFrontier (hs : IsFundamentalDomain G s μ) :
• - theorem measure_fundamentalFrontier : μ (fundamentalFrontier G s) = 0 := by
• - theorem Ne.def {α : Sort u} (a b : α) : (a ≠ b) = ¬ (a = b) := rfl
• - theorem not_eq_not : ∀ {a b : Bool}, ¬a = !b ↔ a = b := by decide
• + theorem not_implies_eq : (¬ (p → q)) = (p ∧ ¬ q) := propext Classical.not_imp
• - theorem not_implies_eq : (¬ (p → q)) = (p ∧ ¬ q) := propext not_imp
• - theorem not_not_eq : ∀ {a b : Bool}, ¬(!a) = b ↔ a = b := by decide
• + theorem nthLe_congr {l : List α} {n p : ℕ} {h : n < length l} (hnp : n = p) :
• - theorem ofPowerSeries_X_pow {R} [CommSemiring R] (n : ℕ) :
• + theorem ofPowerSeries_X_pow {R} [Semiring R] (n : ℕ) :
• + theorem one_def : (1 : 𝒜 ᵍ⊗[R] ℬ) = 1 ᵍ⊗ₜ 1 := rfl
• + theorem single_pow (a : Γ) (n : ℕ) (r : R) : single a r ^ n = single (n • a) (r ^ n) := by
• - theorem succ_one : succ (1 : Ordinal) = 2 := by
• + theorem succ_one : succ (1 : Ordinal) = 2 := by congr; simp only [Nat.unaryCast, zero_add]
• - theorem toChar_aux (n : Nat) (h : n < size) : Nat.isValidChar (UInt32.ofNat n).1 := by

---

• 53 added declarations
• 89 removed declarations
• 0 paired declarations

---

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

That is both too much and too little to be helpful. :-)

[Kim Morrison]

Can it list differences by file?

[Kim Morrison]

And show namespaces?

[Damiano Testa]

I can easily make it print file names, but the tool was designed to help with moves, so it does not do it out-of-the-box.

[Damiano Testa]

Namespaces is trickier, since one of the features is that it runs with possibly corrupt files, so does not use oleans.

[Damiano Testa]

I can try to implement a text-based namespace, but it would be buggy (though likely usually helpful).

[Damiano Testa]

Again, that is not currently implemented, though.

[Damiano Testa]

In any case, it is quite late now and I am going to bed, so either one of these features will have to wait! :smile:

[Kim Morrison]

Okay, namespaces are not essential if filenames are available.

[Kim Morrison]

One important question here is if we need to write comments along with the set_option backward.isDefEq.lazyWhnfCore false in options, or if they are self-explanatory enough??

[Kim Morrison]

Maybe a tracking issue, one for each such flag, is best.

[Kim Morrison]

Currently all the canonInstance flags have a paragraph, but the other two don't.

[Damiano Testa]

Here is a first attempt at putting filenames: it is not polished, but might contain all the right information

First_batch

• -a/test/Lint def add.add := True
• -a/Mathlib/Tactic/Rewrites def backwardWeight := 1
• -a/Mathlib/Tactic/Rewrites def buildDiscrTree : IO (DiscrTreeCache (Name × Bool × Nat)) :=
• -a/Mathlib/Tactic/Rewrites def cachePath : IO FilePath :=
• +b/Mathlib/Tactic/RewriteSearch def compute_rfl? (n : SearchNode) : MetaM SearchNode := do
• -a/Mathlib/Tactic/RewriteSearch def compute_rfl? (n : SearchNode) : MetaM SearchNode := withMCtx n.mctx do
• +b/Mathlib/Data/Vector3 def cons (a : α) (v : Vector3 α n) : Vector3 α (n + 1) := fun i => by
• -a/Mathlib/Data/Vector3 def cons (a : α) (v : Vector3 α n) : Vector3 α (succ n) := fun i => by
• +b/Mathlib/Data/Vector3 def consElim {C : Vector3 α (n + 1) → Sort u} (H : ∀ (a : α) (t : Vector3 α n), C (a :: t))
• -a/Mathlib/Data/Vector3 def consElim {C : Vector3 α (succ n) → Sort u} (H : ∀ (a : α) (t : Vector3 α n), C (a :: t))
• -a/Mathlib/Tactic/Rewrites def discrTreeConfig : WhnfCoreConfig := {}
• -a/Mathlib/Lean/Expr/Traverse def foldlM {α : Type} {m} [Monad m] (f : α → Expr → m α) (x : α) (e : Expr) : m α :=
• -a/test/Lint def Foo.foo := True
• -a/Mathlib/Tactic/Rewrites def forwardWeight := 2
• +b/Mathlib/Data/Vector3 def head (v : Vector3 α (n + 1)) : α :=
• -a/Mathlib/Data/Vector3 def head (v : Vector3 α (succ n)) : α :=
• -a/Mathlib/Lean/Meta def iffOfEq (mvarId : MVarId) : MetaM MVarId := do
• +b/Mathlib/Data/Vector3 def insert (a : α) (v : Vector3 α n) (i : Fin2 (n + 1)) : Vector3 α (n + 1) := fun j =>
• -a/Mathlib/Data/Vector3 def insert (a : α) (v : Vector3 α n) (i : Fin2 (succ n)) : Vector3 α (succ n) := fun j =>
• -a/Mathlib/Tactic/Rewrites def localHypotheses (except : List FVarId := []) : MetaM (Array (Expr × Bool × Nat)) := do
• -a/Mathlib/Tactic/Rewrites def processLemma (name : Name) (constInfo : ConstantInfo) :
• -a/Mathlib/Lean/Meta def proofIrrelHeq (mvarId : MVarId) : MetaM Bool :=
• -a/Mathlib/Lean/Meta def propext (mvarId : MVarId) : MetaM MVarId := do
• -a/Mathlib/Tactic/Rewrites def RewriteResult.by? (r : RewriteResult) : Option Expr :=
• -a/Mathlib/Tactic/Rewrites def RewriteResult.computeRfl (r : RewriteResult) : MetaM RewriteResult := do
• -a/Mathlib/Tactic/Rewrites def RewriteResult.ppResult (r : RewriteResult) : MetaM String :=
• -a/Mathlib/Tactic/Rewrites def RewriteResult.prepare_ppResult (r : RewriteResult) : MetaM RewriteResult := do
• -a/Mathlib/Tactic/Rewrites def rewritesCore (hyps : Array (Expr × Bool × Nat))
• -a/Mathlib/Tactic/Rewrites def rewritesDedup (hyps : Array (Expr × Bool × Nat))
• -a/Mathlib/Tactic/Rewrites def rewrites (hyps : Array (Expr × Bool × Nat))
• -a/Mathlib/Tactic/Relation/Rfl def _root_.Lean.MVarId.liftReflToEq (mvarId : MVarId) : MetaM MVarId := do
• -a/Cache/Hashing def roots : Array FilePath :=
• +b/Cache/Hashing def roots : Array FilePath := #["Mathlib.lean"]
• -a/Mathlib/Tactic/Rewrites def solveByElim (goals : List MVarId) (depth : Nat := 6) : MetaM PUnit := do
• -a/Mathlib/Lean/Meta def subsingletonElim (mvarId : MVarId) : MetaM Bool :=
• +b/Mathlib/Data/Vector3 def tail (v : Vector3 α (n + 1)) : Vector3 α n := fun i => v (fs i)
• -a/Mathlib/Data/Vector3 def tail (v : Vector3 α (succ n)) : Vector3 α n := fun i => v (fs i)
• +b/test/rewrites def testConst : Nat := 4
• +b/Mathlib/Data/UInt def toChar (n : UInt8) : Char := ⟨n.toUInt32, .inl (n.1.2.trans (by decide))⟩
• -a/Mathlib/Data/UInt def toChar (n : UInt8) : Char := ⟨n.toUInt32, toChar_aux n.1 n.1.2⟩
• -a/Mathlib/Lean/Expr/Traverse def traverseChildren [Applicative M] (f : Expr → M Expr) : Expr → M Expr
• -a/Mathlib/Lean/PrettyPrinter/Delaborator def withBindingBody' (n : Name) (x : Expr → m α) : m α := do
• -a/test/rewrites def zero : Nat := 0
• -a/Mathlib/Tactic/Rewrites inductive SideConditions
• -a/Mathlib/Topology/Algebra/GroupCompletion instance : AddCommGroup (Completion α) :=
• +b/Mathlib/Algebra/Module/LinearMap/Basic instance : CoeTC (M →+[R] M₃) (M →ₗ[R] M₃) :=
• -a/Mathlib/Topology/Instances/Real instance : CompleteSpace ℝ := by
• -a/Mathlib/Data/Rat/Denumerable instance : Denumerable ℚ := by
• -a/Mathlib/Algebra/Polynomial/FieldDivision instance : EuclideanDomain R[X] :=
• -a/Mathlib/RingTheory/Ideal/Quotient instance : HasQuotient R (Ideal R) :=
• +b/Mathlib/Topology/Algebra/GroupCompletion instance instAddCommGroup : AddCommGroup (Completion α) :=
• -a/Mathlib/Algebra/Module/LinearMap/Basic instance instCoeTCLinearMap : CoeTC (M →+[R] M₃) (M →ₗ[R] M₃) :=
• +b/Mathlib/Order/Booleanisation instance instDecidableEq [DecidableEq α] : DecidableEq (Booleanisation α) :=
• -a/Mathlib/Order/Booleanisation instance instDecidableEq [DecidableEq α] : DecidableEq (Booleanisation α) := Sum.instDecidableEqSum
• +b/Mathlib/Data/Rat/Denumerable instance instDenumerable : Denumerable ℚ := by
• +b/Mathlib/Algebra/Polynomial/FieldDivision instance instEuclideanDomain : EuclideanDomain R[X] :=
• +b/Mathlib/RingTheory/Ideal/Quotient instance instHasQuotient : HasQuotient R (Ideal R) :=
• +b/Mathlib/GroupTheory/GroupAction/Sigma instance instIsScalarTowerOfSMul [SMul M N] [∀ i, IsScalarTower M N (α i)] :
• +b/Mathlib/GroupTheory/GroupAction/Option instance instIsScalarTowerOfSMul [SMul M N] [IsScalarTower M N α] : IsScalarTower M N (Option α) :=
• +b/Mathlib/Algebra/PUnitInstances instance instIsScalarTowerOfSMul [SMul R S] : IsScalarTower R S PUnit :=
• +b/test/Simps instance instMulProd {M N} [Mul M] [Mul N] : Mul (M × N) := ⟨fun p q ↦ ⟨p.1 * q.1, p.2 * q.2⟩⟩
• -a/test/Simps instance {M N} [Mul M] [Mul N] : Mul (M × N) := ⟨fun p q ↦ ⟨p.1 * q.1, p.2 * q.2⟩⟩
• +b/Mathlib/Topology/Instances/Real instance Real.instCompleteSpace : CompleteSpace ℝ := by
• +b/Mathlib/CategoryTheory/Countable instance : SmallCategory (HomAsType α) := inferInstanceAs <| SmallCategory (ShrinkHoms _)
• -a/Mathlib/CategoryTheory/Countable instance : SmallCategory (HomAsType α) := ShrinkHoms.instCategoryShrinkHoms.{0} _
• -a/Mathlib/GroupTheory/GroupAction/Sigma instance [SMul M N] [∀ i, IsScalarTower M N (α i)] : IsScalarTower M N (Σi, α i) :=
• -a/Mathlib/GroupTheory/GroupAction/Option instance [SMul M N] [IsScalarTower M N α] : IsScalarTower M N (Option α) :=
• -a/Mathlib/Algebra/PUnitInstances instance [SMul R S] : IsScalarTower R S PUnit :=
• +b/Mathlib/Topology/Algebra/Ring/Basic instance {β : Type*} {C : β → Type*} [∀ b, TopologicalSpace (C b)]
• +b/Mathlib/NumberTheory/Harmonic/Defs lemma harmonic_eq_sum_Icc {n : ℕ} : harmonic n = ∑ i in Finset.Icc 1 n, (↑i)⁻¹ := by
• -a/Mathlib/NumberTheory/Harmonic/Defs lemma harmonic_eq_sum_Icc {n : ℕ} : harmonic n = ∑ i in Finset.Icc 1 n, (↑i)⁻¹ := by
• +b/Mathlib/Data/Nat/Defs lemma one_lt_succ_succ (n : ℕ) : 1 < n.succ.succ := succ_lt_succ <| succ_pos n
• -a/Mathlib/Data/Nat/Defs lemma pred_eq_sub_one (n : ℕ) : pred n = n - 1 := rfl
• -a/test/rewrites lemma prime_of_prime (n : ℕ) : Prime n ↔ Nat.Prime n := by
• +b/Mathlib/Data/Nat/Defs lemma rec_add_one {C : ℕ → Sort*} (h0 : C 0) (h : ∀ n, C n → C (n + 1)) (n : ℕ) :
• +b/Mathlib/Analysis/Convex/Basic lemma stdSimplex_fin_two :
• -a/Mathlib/Analysis/Convex/Basic lemma stdSimplex_fin_two : stdSimplex 𝕜 (Fin 2) = [Pi.single 0 1 -[𝕜] Pi.single 1 1] := by
• -a/Mathlib/Tactic/Rewrites structure RewriteResult where
• +b/Mathlib/Init/Data/Nat/Basic theorem add_one_pos (n : ℕ) : 0 < n + 1 := succ_pos n

[Damiano Testa]

Second_batch

• +b/Mathlib/Logic/Basic theorem and_or_imp {a b c : Prop} : a ∧ b ∨ (a → c) ↔ a → b ∨ c := Decidable.and_or_imp
• +b/Mathlib/Data/Fin/Tuple/NatAntidiagonal theorem antidiagonalTuple_zero_succ (n : ℕ) : antidiagonalTuple 0 (n + 1) = [] :=
• -a/Mathlib/Data/Fin/Tuple/NatAntidiagonal theorem antidiagonalTuple_zero_succ (n : ℕ) : antidiagonalTuple 0 n.succ = [] :=
• +b/Mathlib/Data/Vector3 theorem append_insert (a : α) (t : Vector3 α m) (v : Vector3 α n) (i : Fin2 (n + 1))
• -a/Mathlib/Data/Vector3 theorem append_insert (a : α) (t : Vector3 α m) (v : Vector3 α n) (i : Fin2 (succ n))
• +b/Mathlib/Data/List/Intervals theorem bagInter_consecutive (n m l : Nat) :
• -a/Mathlib/Data/List/Intervals theorem bagInter_consecutive (n m l : Nat) : @List.bagInter ℕ instBEq (Ico n m) (Ico m l) = [] :=
• -a/Mathlib/Data/Bool/Basic theorem beq_comm {α} [BEq α] [LawfulBEq α] {a b : α} : (a == b) = (b == a) :=
• -a/Mathlib/Data/Bool/Basic theorem beq_eq_decide_eq {α} [BEq α] [LawfulBEq α] [DecidableEq α]
• -a/Mathlib/Data/Nat/Cast/Defs theorem cast_add [AddMonoidWithOne R] (m n : ℕ) : ((m + n : ℕ) : R) = m + n := by
• +b/Mathlib/Algebra/CharZero/Defs theorem cast_add_one_ne_zero (n : ℕ) : (n + 1 : R) ≠ 0 :=
• -a/Mathlib/Algebra/CharZero/Defs theorem cast_add_one_ne_zero (n : ℕ) : (n + 1 : R) ≠ 0 := by
• +b/Mathlib/Data/Nat/Cast/Defs theorem cast_add {R : Type*} [AddMonoidWithOne R] (m n : ℕ) : ((m + n : ℕ) : R) = m + n := by
• -a/Mathlib/Data/Bool/Basic theorem coe_iff_coe : ∀ {a b : Bool}, (a ↔ b) ↔ a = b := by decide
• -a/Mathlib/Data/Bool/Basic theorem cond_decide {α} (p : Prop) [Decidable p] (t e : α) :
• -a/Mathlib/Data/Bool/Basic theorem cond_eq_ite {α} (b : Bool) (t e : α) : cond b t e = if b then t else e := by
• -a/Mathlib/Data/Bool/Basic theorem cond_not {α} (b : Bool) (t e : α) : cond (!b) t e = cond b e t := by cases b <;> rfl
• -a/Mathlib/Init/Data/Bool/Lemmas theorem cond_self.{u} {α : Type u} (b : Bool) (a : α) : cond b a a = a := by cases b <;> rfl
• +b/Mathlib/Data/Vector3 theorem cons_head_tail (v : Vector3 α (n + 1)) : (head v :: tail v) = v :=
• -a/Mathlib/Data/Vector3 theorem cons_head_tail (v : Vector3 α (succ n)) : (head v :: tail v) = v :=
• -a/Mathlib/Data/Bool/Basic theorem decide_and (p q : Prop) [Decidable p] [Decidable q] : decide (p ∧ q) = (p && q) := by
• -a/Mathlib/Data/Bool/Basic theorem decide_coe (b : Bool) {h} : @decide b h = b := by
• -a/Mathlib/Data/Bool/Basic theorem decide_or (p q : Prop) [Decidable p] [Decidable q] : decide (p ∨ q) = (p || q) := by
• -a/Mathlib/Data/Bool/Basic theorem default_bool : default = false :=
• -a/Mathlib/Data/Nat/Dist theorem dist.def (n m : ℕ) : dist n m = n - m + (m - n) :=
• +b/Mathlib/RingTheory/AdicCompletion/Basic theorem eval_of (n : ℕ) (x : M) : eval I M n (of I M x) = mkQ (I ^ n • (⊤ : Submodule R M)) x :=
• -a/Mathlib/RingTheory/AdicCompletion/Basic theorem eval_of (n : ℕ) (x : M) : eval I M n (of I M x) = mkQ _ x :=
• +b/Mathlib/Data/Fintype/BigOperators theorem Fintype.card_exp_univ_card_eq [Fintype α] [Fintype β] :
• +b/test/RewriteSearch/Basic theorem foo (n : Nat) : makeSingleton n = [0] := by
• -a/Mathlib/Data/List/GetD theorem getD_cons_succ : getD (x :: xs) (n + 1) d = getD xs n d :=
• -a/Mathlib/Data/List/GetD theorem getD_cons_zero : getD (x :: xs) 0 d = x :=
• -a/Mathlib/Data/List/GetD theorem getD_nil : getD [] n d = d :=
• +b/Mathlib/CategoryTheory/Category/Preorder theorem homOfLE_refl {x : X} (h : x ≤ x) : h.hom = 𝟙 x :=
• -a/Mathlib/CategoryTheory/Category/Preorder theorem homOfLE_refl {x : X} : (le_refl x).hom = 𝟙 x :=
• -a/Mathlib/Logic/Basic theorem imp_and_neg_imp_iff (p q : Prop) : (p → q) ∧ (¬p → q) ↔ q := by
• +b/Mathlib/Logic/Basic theorem imp_and_neg_imp_iff (p q : Prop) : (p → q) ∧ (¬p → q) ↔ q := by simp
• +b/Mathlib/Logic/Basic theorem imp_iff_right_iff {a b : Prop} : (a → b ↔ b) ↔ a ∨ b := Decidable.imp_iff_right_iff
• +b/Mathlib/Combinatorics/Enumerative/Composition theorem index_exists {j : ℕ} (h : j < n) : ∃ i : ℕ, j < c.sizeUpTo (i + 1) ∧ i < c.length := by
• -a/Mathlib/Combinatorics/Enumerative/Composition theorem index_exists {j : ℕ} (h : j < n) : ∃ i : ℕ, j < c.sizeUpTo i.succ ∧ i < c.length := by
• +b/Mathlib/Data/Vector3 theorem insert_fs (a : α) (b : α) (v : Vector3 α n) (i : Fin2 (n + 1)) :
• -a/Mathlib/Data/Vector3 theorem insert_fs (a : α) (b : α) (v : Vector3 α n) (i : Fin2 (succ n)) :
• +b/Mathlib/Logic/IsEmpty theorem isEmpty_exists_isempty_fun : (∃ (_ : α), IsEmpty β) ↔ Nonempty α ∧ IsEmpty β := by
• -a/Mathlib/Logic/IsEmpty theorem isEmpty_fun : IsEmpty (α → β) ↔ Nonempty α ∧ IsEmpty β := by
• +b/Mathlib/Logic/IsEmpty theorem isEmpty_fun : IsEmpty (α → β) ↔ Nonempty α ∧ IsEmpty β := by simp
• -a/Mathlib/Init/Data/Bool/Lemmas theorem ite_eq_false_distrib (c : Prop) [Decidable c] (a b : Bool) :
• -a/Mathlib/Init/Data/Bool/Lemmas theorem ite_eq_true_distrib (c : Prop) [Decidable c] (a b : Bool) :
• +b/Mathlib/Data/List/Sort theorem length_split_fst_le (l : List α) : length (split l).1 ≤ length l :=
• +b/Mathlib/Data/List/Sort theorem length_split_snd_le (l : List α) : length (split l).2 ≤ length l :=
• +b/Mathlib/MeasureTheory/Group/FundamentalDomain theorem measure_fundamentalFrontier (hs : IsFundamentalDomain G s μ) :
• -a/Mathlib/MeasureTheory/Group/FundamentalDomain theorem measure_fundamentalFrontier : μ (fundamentalFrontier G s) = 0 := by
• -a/Mathlib/Init/Logic theorem Ne.def {α : Sort u} (a b : α) : (a ≠ b) = ¬ (a = b) := rfl
• -a/Mathlib/Data/Bool/Basic theorem not_eq_not : ∀ {a b : Bool}, ¬a = !b ↔ a = b := by decide
• +b/Mathlib/Tactic/PushNeg theorem not_implies_eq : (¬ (p → q)) = (p ∧ ¬ q) := propext Classical.not_imp
• -a/Mathlib/Tactic/PushNeg theorem not_implies_eq : (¬ (p → q)) = (p ∧ ¬ q) := propext not_imp
• -a/Mathlib/Data/Bool/Basic theorem not_not_eq : ∀ {a b : Bool}, ¬(!a) = b ↔ a = b := by decide
• +b/Mathlib/Data/List/Basic theorem nthLe_congr {l : List α} {n p : ℕ} {h : n < length l} (hnp : n = p) :
• -a/Mathlib/RingTheory/HahnSeries/PowerSeries theorem ofPowerSeries_X_pow {R} [CommSemiring R] (n : ℕ) :
• +b/Mathlib/RingTheory/HahnSeries/PowerSeries theorem ofPowerSeries_X_pow {R} [Semiring R] (n : ℕ) :
• +b/Mathlib/LinearAlgebra/TensorProduct/Graded/Internal theorem one_def : (1 : 𝒜 ᵍ⊗[R] ℬ) = 1 ᵍ⊗ₜ 1 := rfl
• +b/Mathlib/RingTheory/HahnSeries/Multiplication theorem single_pow (a : Γ) (n : ℕ) (r : R) : single a r ^ n = single (n • a) (r ^ n) := by
• -a/Mathlib/SetTheory/Ordinal/Basic theorem succ_one : succ (1 : Ordinal) = 2 := by
• +b/Mathlib/SetTheory/Ordinal/Basic theorem succ_one : succ (1 : Ordinal) = 2 := by congr; simp only [Nat.unaryCast, zero_add]
• -a/Mathlib/Data/UInt theorem toChar_aux (n : Nat) (h : n < size) : Nat.isValidChar (UInt32.ofNat n).1 := by

[Damiano Testa]

(now I am really going to bed!)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Michael Stoll]

Kim Morrison said:

I would like to get feedback on merging these backwards compatibility flags into master. I think it is the right approach, but some +1s would be great.

I think it would be very good to get some of the new things to be usable with Mathlib soon (in particular, the fix for apply? and lena4#4003), so I am very much in favor of this.

The need for the backward compatibility flag on instance synthesis probably points to some problems with the design of our type classes in some areas, so this may actually be helpful in getting to the bottom of these problems.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Woah, lean4checker failure.

[Kim Morrison]

Oh, lake has changed where it pipes its output. @Mac Malone

Error: The command 'lake exe lean4checker Lean4CheckerTests.AddFalse' did not produce the expected error.
Expected:
uncaught exception: (kernel) declaration type mismatch, 'false' has type
  Prop
but it is expected to have type
  False
Got:
[?/?] Computing build jobs
[1/5] Building Lean4Checker.Lean
[2/5] Building Main
[3/5] Compiling Main
[4/5] Compiling Lean4Checker.Lean
[5/5] Linking lean4checker
uncaught exception: (kernel) declaration type mismatch, 'false' has type
  Prop
but it is expected to have type
  False

[Kim Morrison]

Not saying this needs to be changed if it is intentional.

[Kim Morrison]

Oh, weird, and running it locally produces:

% ./test.sh
Error: The command 'lake -q exe lean4checker Lean4CheckerTests.AddFalse' did not produce the expected error.
Expected:
uncaught exception: (kernel) declaration type mismatch, 'false' has type
  Prop
but it is expected to have type
  False
Got:






uncaught exception: (kernel) declaration type mismatch, 'false' has type
  Prop
but it is expected to have type

[Kim Morrison]

That is looking like something to fix.

[Floris van Doorn]

@Kim Morrison I managed to minimize the timeout in vector bundle to this almost-mathlib free mwe:

import Mathlib.Logic.Basic

def MyExists := @Exists

lemma foo {α : Type _} {P : α → Prop} : (∃ x, P x) ↔ MyExists P :=
  .rfl

example (x : ℕ) :
  ∃ (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x), True := by
  simp only [foo]

This example gets exponentially slow depending on the number of hypotheses h you add. I think it has to do a congr-lemma in Mathlib.

[Kim Morrison]

Fascinating, thank you!

[Kim Morrison]

It ... doesn't look much like a vector bundle anymore.

[Kim Morrison]

What does the iterated existential correspond to originally?

[Floris van Doorn]

I can confirm that on Mathlib master this is linear in the number of hypotheses h.
It were iterated unions, and all the time was spent on simp only [mem_iUnion]

[Kim Morrison]

Awesome, okay, is it okay if I keep minimizing and get it off Mathlib entirely?

[Floris van Doorn]

Yes, please do!

[Floris van Doorn]

The declaration smoothFiberwiseLinear was already slow on Mathlib master, with a large amount of the time spent on the simp only's. So maybe there is more speedup to be gained there...

[Kim Morrison]

import Lean

section Mathlib.Logic.Basic

@[congr]
theorem exists_prop_congr {p p' : Prop} {q q' : p → Prop} (hq : ∀ h, q h ↔ q' h) (hp : p ↔ p') :
    Exists q ↔ ∃ h : p', q' (hp.2 h) := sorry

@[congr]
theorem exists_prop_congr' {p p' : Prop} {q q' : p → Prop} (hq : ∀ h, q h ↔ q' h) (hp : p ↔ p') :
    Exists q = ∃ h : p', q' (hp.2 h) := sorry

end Mathlib.Logic.Basic

def MyExists := @Exists

theorem foo {α : Type _} {P : α → Prop} : (∃ x, P x) ↔ MyExists P :=
  .rfl

-- This takes under 1000 on `v4.7.0`, and is linear in the depth of the existential.
-- On `master` it is exponential!
set_option maxHeartbeats 10000 in
example (x : ℕ) :
  ∃ (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x), True := by
  simp only [foo]
  sorry

is Mathlib free. It requires both of the congr lemmas to cause the bad behaviour.

[Kim Morrison]

Two things to do, I guess: find out what in lean is changing this to exponential behaviour, and see if we can get rid of one or both of these lemmas in Mathlib!

[Floris van Doorn]

With one congr lemma I also get exponential behavior:

@[congr]
theorem exists_prop_congr {p p' : Prop} {q q' : p → Prop} (hq : ∀ h, q h ↔ q' h) (hp : p ↔ p') :
    Exists q ↔ ∃ h : p', q' (hp.2 h) := sorry

set_option profiler true
example (x : Nat) :
  ∃ (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x), True := by
  simp only

[Floris van Doorn]

(I couldn't resist myself from also minimizing it a bit further myself :-) )

[Kyle Miller]

That seems like it's not a good congr lemma. Every time it's applied, simp will need to deal with the hp.2 h terms that accumulate.

[Floris van Doorn]

Maybe. We can try to see how much breaks in Mathlib if we only congr on q while leaving p constant. It seems useful to be able to simp both...

[Kim Morrison]

Half way through mathlib, no breakage so far.

[Kim Morrison]

I think just removing would be great, if nothing breaks.

[Floris van Doorn]

Does simp actually simplify proofs of propositions? Is that useful?

[Kyle Miller]

Oh right, hp.2 h is a proof, so it won't touch that.

[Yaël Dillies]

Yes, eg Acc

[Floris van Doorn]

@Kim Morrison I think that the congr lemma that made the vector bundle declaration slow is Set.iUnion_congr_Prop.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Matthew Ballard]

Is this the change to docs#Lean.Meta.Simp.simpArrow ?

[Matthew Ballard]

Tracing debug crashes my editor

[Matthew Ballard]

Kim Morrison said:

• There are currently 19 files that requies a set_option backward.isDefEq.lazyWhnfCore false in to avoid a timeout. (lean4#4023 is a minimization of one of these, and Leo is actively looking at this.) This flag locally reverts the changes to isDefEq from lean4#4004.

You can make lean#4023 instantaneous by specifying the submodule of the RHS. If not, Lean guesses correctly that it should try Submodule.localized' S p f M' but the metavariable appearing in its place is not assignable (depth?). This remains true even if you specify the ring for the submodule.

Do we want to make this adaptation for nightly-testing or wait until the something arrives for lean#4023?

[Kim Morrison]

Leo also discovered that making any of Membership.mem, Submodule.op, or ... one other, I forget, irreducible makes it instantaneous.

In v4.8.0-rc1 we will have much more flexibility to control reducibility (e.g. locally, in scopes, in later files), and hopefully we can use that flexibility to make a lot more things irreducible!

[Kim Morrison]

I'm inclined to postpone fixes for individual lazyWhnfCore options until after this all hits master.

[Kim Morrison]

(People will enjoy cleaning them up!)

[Matthew Ballard]

Performance on master is also quite bad. It just don't trip any limits

[Kim Morrison]

I hope that the workflow:

• try making something irreducible
• patch downstream problems by use a local attribute
• (possibly merge in the meantime, and then later)
• work out the missing lemmas to add to avoid needing local semireducibility
• converge on making things irreducible immediately after the initial API setup

will be quite productive

[Matthew Ballard]

There is no option to trace metavariable creation with their individual contexts right?

[Matthew Ballard]

I get the creeping feeling that mathlib has an anti-pattern and this is an example

[Floris van Doorn]

I was also investigating another maxheartbeats in the manifold library, and I just made #12552 that makes LocalInvariantProp a structure, which means that many manifold-predicates can only be unfolded a few steps. This improves performance a bit, and flagged some defeq-abuses.

[Patrick Massot]

Do I understand correctly that we are going back to the way Lean 3 worked here?

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[Matthew Ballard]

I still can't believe this universe issue.

[Matthew Ballard]

But it allows the removal of some backward.isDefEq.lazyWhnfCore flags

[Matthew Ballard]

Kim Morrison said:

* In Spec, lazyWhnfCore helps, but even with that it requires 800,000 heartbeats (i.e. 4x the limit).

Gone

[Matthew Ballard]

And the universe signature did not change.

[Matthew Ballard]

#12557

[Matthew Ballard]

Other than universe issues (which is also a case of this in a way), every regression I've poked at follows the same pattern:

• there is some implicit variable that Lean needs to fill in
• Lean tries to assign the correct thing but the metavariable is unassignable
• Lean soldiers on, with much effort, with the metavariable in place hoping something else will work
• filling in the implicit variable explicitly makes the declaration lightning quick

[Matthew Ballard]

In lean#4023, making those things irreducible only returns performance to ~master-level which is still orders of magnitude slower than filling the implicit explicitly

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[Michael Stoll]

Does it make sense to try to fix the problem in Mathlib.Data.Rat.Defs?

[Ruben Van de Velde]

Matthew Ballard said:

#12557

This is ready for bors if anyone's around :)

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[Kim Morrison]

I've just merged master into bump/v4.8.0 again. I'm not super confident I got all the merge conflicts correct. I'm building locally now but will be away from the computer for a bit soon.

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[Kim Morrison]

#12567 just removes one of the two congr lemmas in the mwe, since it is unused and seems safest to have out of the way. I'll separately report the linear --> exponential change in behaviour.

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[Kim Morrison]

Floris van Doorn said:

With one congr lemma I also get exponential behavior:

@[congr]
theorem exists_prop_congr {p p' : Prop} {q q' : p → Prop} (hq : ∀ h, q h ↔ q' h) (hp : p ↔ p') :
    Exists q ↔ ∃ h : p', q' (hp.2 h) := sorry

set_option profiler true
example (x : Nat) :
  ∃ (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x)
      (h : x = x), True := by
  simp only

A git bisect reveals this change in behaviour originates in lean4#3972, which changed how simp caching works.

[Johan Commelin]

I'm really excited to find out the total speed up compared to 2 weeks ago (say).

[Kim Morrison]

Yes, we are about to run !bench. I'm pretty terrified it is going to be disappointing. Local builds feel slow to me, but we have zero hard data right now. This is something we need to get much better at going forward. Every nightly-testing-YYYY-MM-DD (note that these are not actually created every day, only on green days) is already sent to the speedcenter, but we have no systematic way of looking at the results.

[Kim Morrison]

I think the two major things remaining are:

• I'm looking through #12548 for anything that looks like a bad merge. I'd really appreciate if someone else can as well.
• We need to run !bench...

[Johan Commelin]

Well, we have

• change to CharP.CharOne instance
• changes to convert/congr!, subsingleton stuff
• explicit universes
• change to TC synthesis algorithm to stop retrying stuff

Altogether this must have a noticeable impact, I hope!

[Kim Morrison]

Some of these have happened on master already, so won't be "credited" in the !bench results.

[Kim Morrison]

But yes, we can compare master two weeks ago.

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[Ruben Van de Velde]

I will try to make some more time to review the pr today, but might only be tonight

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[Kim Morrison]

git is failing with a 128 on lake build cache. Not sure what could be wrong there!

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[Kim Morrison]

@Floris van Doorn, Leo has modified the simp cache in https://github.com/leanprover/lean4/pull/4044 and fixed the exponential behaviour.

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[Ruben Van de Velde]

error: ././././Mathlib/Order/Heyting/Hom.lean:191:2-191:11: failed to set reducibility status, BoundedLatticeHomClass.toBiheytingHomClass is not a definition
use set_option allowUnsafeReducibility true to override reducibility status validation

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[Ruben Van de Velde]

I'm just removing any reducible attributes on theorems, I hope that's right

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[Kim Morrison]

@Ruben Van de Velde, I've backported most of your changes in #12691.

[Ruben Van de Velde]

I'm not sure if I should review my own changes:)

[Kim Morrison]

Okay, I guess. :-)

[Kim Morrison]

nb: incoming lean#4037 tonight will require lean-pr-testing-4037 merged into nightly-testing.

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[Ruben Van de Velde]

github mathlib4 bot said:

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More batteries fallout cc @Mario Carneiro

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[Kim Morrison]

The batteries bump hadn't arrived in time, but is in now.

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[Kim Morrison]

Needs lean-pr-testing-4061 merged in.

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[Kim Morrison]

Needed a type annotation on an ambiguous numeral on an incoming change from master.

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[Kim Morrison]

@Joachim Breitner, I've successfully removed the unseal Nat.modCores from nightly-testing, thanks!

[Kim Morrison]

I'm fixing a few proofs in nightly-testing to avoid needing to unseal things as much. I'll backport to master in a bit.

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[Kim Morrison]

Deprecations in dot notation that aren't visible on master. Backported as #12920

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#12969 backports some changes to EllipticDivisibilitySequence

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[Kim Morrison]

#13045 has some backport deprecation warning fixes

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#13046 contains further backports. There are still a few more changes, which look more regression-y, on nightly-testing. I'll make a PR out of these soon.

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Just the noisy output detector correctly complaining about unwanted output from Lake, which will be fixed tonight in lean#4220.

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Updated the noisy CI filter for the new lake output, hopefully okay now.

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[Kim Morrison]

Just required merging existing fixes on lean-pr-testing-4231, PR shortly.

[Kim Morrison]

Btw --- if anyone wants to check out the new lake build output, it is available now on nightly-testing.

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Wouldn't hurt to have a few people take a look, as the new lake build output is going to arrive on rc2 (hopefully <24 hours?), and hasn't been tested a whole lot.

[Kim Morrison]

Oops, Cache was broken by the Lake.crlf2lf --> String.crlfToLf (undeprecated!) rename.

[Kim Morrison]

And needed to merge lean-pr-testing-4224 as well.

But our system is working nicely at the moment: lots of Lean PRs are using the nightly-with-mathlib tag as their base, and so we end up with Mathlib patches all ready to go, rather than having to diagnose the breakage. :-) :-)

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[Kim Morrison]

Ah, this is fallout from @Yuyang Zhao's lean#4188. I should have asked for a mathlib build before merging, by mistake.

@Yuyang Zhao, do you have a fix on hand?

[Kim Morrison]

Okay, think I have it sorted out.

[Mauricio Collares]

Whoops, sorry! I forgot to check here and just pushed what I think is a fix.

[Mauricio Collares]

Feel free to force push your fix

[Kim Morrison]

No worries, I left for dinner. I'll merge and see what happens.

[Kim Morrison]

All good. One of your fixes was better than mine. I just replaced a lemma name, you replaced the whole proof!

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Just a deprecation.

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Just some deprecations, backported on #13192.

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[Kim Morrison]

@Jannis Limperg, there was a problem here in Aesop caused by your https://github.com/leanprover-community/aesop/commit/1bbc601de6ff7b69fee3c028069879e830baa0e8.

The problem is that we have removed Lean.Expr.findM? (recently added), because we decided it was too dangerous to allow potential side-effecting monadic calculations while using a pointer based cache.

Your recent addition of hasSorry relied on findM?.

[Kim Morrison]

For now I've simply reverted this commit on nightly-testing, but obviously we still need a solution here.

[Kim Morrison]

Can I pass the baton to you to think about how to achieve this without findM??

[Kim Morrison]

We did consider the possibility of keeping findM? but with prominent warnings that you have to be really careful about side effects... This can still be on the table.

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[Jannis Limperg]

Kim Morrison said:

Can I pass the baton to you to think about how to achieve this without findM??

I see a few options:

• Work around it in Aesop by moving the monadic computation into a loop around find?. The code is not at all performance-critical, so this is fine.
• Provide an unsafe findM? as you suggest.
• Rename findM? to unsafeFindM? or another suitably scary name and possibly add a safe variant findM? without the pointer-based cache.

The last one would be my favourite.

[Jannis Limperg]

Actually, the workaround in Aesop is even easier than that. I just need to get the mctx and then use it for pure lookups in find?.

[Kim Morrison]

Let's do that. The decision to remove findM? was in part motivated by the hope that in most use cases, if there were no side effects probably it could actually be made pure.

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[Kim Morrison]

The problem here is that lake build is saying:

% lake build
ℹ [544/4549] Replayed Mathlib.Data.Set.Basic
info: ././././Mathlib/Data/Set/Basic.lean:2646:0: 0
Build completed successfully.

and this is failing the noisy output check.

@Mac Malone, do you know why Lake would be telling us that it replayed something here?

[Sebastian Ullrich]

Is that not correct? https://github.com/leanprover-community/mathlib4/blob/nightly-testing/Mathlib/Data/Set/Basic.lean#L2646

[Ruben Van de Velde]

Yeah, that was my attempt to debug

[Ruben Van de Velde]

Before it was failing with

error: ././././Mathlib/Order/Circular.lean:6:0: failed to read file '././.lake/build/lib/Mathlib/Data/Set/Basic.olean', invalid header

[Ruben Van de Velde]

Hold on, didn't we recently start uploading to the cache when the build was interrupted?

[Jannis Limperg]

Kim Morrison said:

Let's do that. The decision to remove findM? was in part motivated by the hope that in most use cases, if there were no side effects probably it could actually be made pure.

Done and Aesop's nightly-testing is up to date again.

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

A change on master (norm_iteratedFDeriv_fourierPowSMulRight) now requires a set_option maxSynthPendingDepth 2 in.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

[Kim Morrison]

Just a deprecation warning following a change on master. These will stop shortly when Mathlib means to v4.9.0-rc1.

[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Changes on master that relied on well-founded defs being semireducible.

[github mathlib4 bot]

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[Ruben Van de Velde]

:up: probably more of the same in Mathlib/RingTheory/Polynomial/Chebyshev.lean (not looking right now)

[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Some synthPendingDepth issues with @Jireh Loreaux's changes to StoneWeierstrauss. Seems straightforward: we can remove some shortcut instances at the price of increasing synthPendingDepth.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[Jireh Loreaux]

@Kim Morrison can you explain further? I thought we couldn't increase synthPendingDepth?

[github mathlib4 bot]

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[Kim Morrison]

Jireh Loreaux said:

Kim Morrison can you explain further? I thought we couldn't increase synthPendingDepth?

I think the consensus now is that it is fine to locally increase it to 2, and that this is preferable to aging appreciate instances.

[Kim Morrison]

Moreover, we should try to build Mathlib with it globally at 2 again, and if we can get it to build check the benchmark. (When we previously tried this it was too slow.) If we can avoid they performance penalty there is no reason not to increase it globally.

[Kim Morrison]

github mathlib4 bot said:

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed.

Just some upstreamed lemmas about Fin.

[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

File deleted on master (Mathlib/Data/BitVec/Lemmas) had local changes on nightly-testing, so wasn't deleted correctly.

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

A shake was required, and I've also bumped dependencies.

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Appears to have just need lean-pr-testing-4314 merged. About to hope back on a plane. :-)

[Ruben Van de Velde]

I'll try that

[github mathlib4 bot]

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[Ruben Van de Velde]

Oh, you did

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Thanks!

[github mathlib4 bot]

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[Kim Morrison]

Just needs a shake again, after merging master->bump/v4.9.0->nightly-testing

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Fallout from lean4#4321. There's no adaptation branch, but I'll fix this up soon.

[Kim Morrison]

Oof, this encountered an unpleasant any_goals simp [...] proof which was actually meant to be a swap · simp [...].

[github mathlib4 bot]

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[Kim Morrison]

Interesting! @Joachim Breitner's lean4#4177 has changed the behaviour of simp so when given an invalid theorem is generates an error but continues. This has changed the behaviour of norm_num to do the same, so we need to update the relevant norm_num test.

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

nightly-testing is badly broken today:

- Mathlib.Data.List.EditDistance.Estimator
- Mathlib.Data.Seq.Parallel
- Mathlib.CategoryTheory.Limits.HasLimits
- Mathlib.GroupTheory.Perm.Support
- Mathlib.Data.QPF.Multivariate.Constructions.Fix
- Mathlib.Combinatorics.Hall.Finite
- Mathlib.Combinatorics.SimpleGraph.Triangle.Counting
- Mathlib.SetTheory.Ordinal.FixedPointApproximants
- Mathlib.ModelTheory.Semantics
- Mathlib.GroupTheory.Solvable
- Mathlib.Data.Nat.Factorization.Root
- Mathlib.Topology.UniformSpace.UniformEmbedding
- Mathlib.LinearAlgebra.Basis

So far I don't even have a guess what has caused it. lean#4352 seems to be the only plausible suspect amongst the changes in this nightly.

[Kim Morrison]

Unfortunately it wasn't tested separately.

[Ruben Van de Velde]

Did you fix error: ././././Mathlib/Init/Core.lean:152:27: Declaration IsLawfulSingleton not found. already?

[Kim Morrison]

Yes, sorry, just pushed some easy changes.

[Kim Morrison]

(the various upstreams and renames)

[Kim Morrison]

I'm compiling lean#4352 locally to see if I can reproduce nightly-testing's troubles there. Probably it won't be possible to test separately because too many other things changed.

[Kim Morrison]

Yeah, it was lean#4352. I suspect this will require minimization and possibly some revisions at the Lean end, but I am jet-lagged and need to sleep!

[github mathlib4 bot]

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[Ruben Van de Velde]

I pushed a few workarounds with adaptation notes; not yet all of the files you listed

[github mathlib4 bot]

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[Kim Morrison]

Ruben Van de Velde said:

I pushed a few workarounds with adaptation notes; not yet all of the files you listed

Do you have a sense whether the workaround are reasonable? (i.e. previously the proofs were abusive in some way) Or if they likely indicate that we will need to go back and change lean#4352? I'll look later today.

[Ruben Van de Velde]

The ones I pushed were a bit disappointing, but probably not unreasonable. I guess it will depend on how many more of those are coming

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Nearly all fixed (there will be many backported changes to master; I'll prepare these soon).

[Kim Morrison]

The one remaining error is in Mathlib/Algebra/Lie/CartanExists.lean, where a simp_rw [coe_toEnd_pow] is no longer firing. Haven't quite worked this one out yet, so if any Lie theory enthusiasts (@Johan Commelin?) want to jump in that would be great. (Hopefully oleans available already?)

[github mathlib4 bot]

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[Kim Morrison]

Kim Morrison said:

The one remaining error is in Mathlib/Algebra/Lie/CartanExists.lean, where a simp_rw [coe_toEnd_pow] is no longer firing. Haven't quite worked this one out yet, so if any Lie theory enthusiasts (Johan Commelin?) want to jump in that would be great. (Hopefully oleans available already?)

Okay, sorted this one. Hopefully all working again.

[github mathlib4 bot]

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[Kim Morrison]

Some incoming problems from master.

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Needs patches merged from lean-pr-testing-4370

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

I've merged patches for lean#4408 and lean#4385 that I prepared earlier.

[github mathlib4 bot]

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[Kim Morrison]

Trying out the fix proposed at https://leanprover.zulipchat.com/#narrow/stream/113488-general/topic/v4.2E9.2E0-rc1.20discussion/near/444127287, but it is a bit voodoo so far.

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Hopefully should come good again now that we are using @llllvvuu's batteries#838.

[llllvvuu]

We might have to address those linter warnings as well: #13754

(I might have awakened the linter by fixing a bug - my bad)

[Kim Morrison]

@llllvvuu, yes if you could send that to master that would be great. Ping me again and I'll merge!

[llllvvuu]

@Kim Morrison done

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Hopefully just needs lean-pr-testing-4421 merged in.

[Kim Morrison]

Also requires quite a few (positive!) fixes for lean4#4430.

[github mathlib4 bot]

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[github mathlib4 bot]

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[Kim Morrison]

Ugh, my fault, after merging lean-pr-testing-4421 we were pointing to an old copy of Batteries.

[github mathlib4 bot]

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[Kim Morrison]

Failure in norm_num now from the universe permutation change: lean4#4408

[Kim Morrison]

Fix is easy enough, happily.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded!

[Kim Morrison]

Hurrah! It's been a while. :-)

[github mathlib4 bot]

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[Kim Morrison]

Hmm, I seem to have run into trouble here, with lake getting stuck.

@Mac Malone?

On the nightly-testing branch of Mathlib, I see:

% lake build
warning: manifest out of date: git url of dependency 'Cli' changed; use `lake update Cli` to update it
warning: manifest out of date: git revision of dependency 'Cli' changed; use `lake update Cli` to update it
⣿ [?/?] Computing build jobs^C

with lake just hanging at that step.

I don't see anything wrong with Cli (and I'm pretty sure nothing has changed):

% lake update Cli
warning: ././.lake/packages/proofwidgets/lakefile.lean:22:20: warning: `Lake.inputFile` has been deprecated
warning: ././.lake/packages/proofwidgets/lakefile.lean:76:36: warning: `Lake.inputFile` has been deprecated
warning: Cli: ignoring missing dependency manifest '././.lake/packages/Cli/lake-manifest.json'
info: mathlib: running post-update hooks

doesn't result in any change to lake-manifest.json, and lake build hangs in the same manner.

I've tried the usual things of lake clean, and rm -rf .lake, to no avail.

[Kim Morrison]

(The warning about Lake.inputFile from ProofWidgets has been present for about a week: @Wojciech Nawrocki knows about it and is looking into it, so I think it is unrelated to today's problem.)

[Kim Morrison]

(Fully appreciating it is the weekend...) This is apparently completely blocking work on nightly-testing, so @Mac Malone I'd appreciate your help here on Monday! :-)

[Mac Malone]

Kim Morrison said:

warning: Cli: ignoring missing dependency manifest '././.lake/packages/Cli/lake-manifest.json'

This sticks out to me as odd as Cli has a lake-manifest.json . Does the file in question really not exist?

[Kim Morrison]

Yes, the file is missing.

[Mac Malone]

Well that's a problem. What does a rm -rf .lake and lake update Cli -v produce?

[Kim Morrison]

lean4-cli main is at a11566029bd9ec4f68a65394e8c3ff1af74c1a29, but git log in .lake/packages/Cli reports 39229f3630d734af7d9cfb5937ddc6b41d3aa6aa.

[Kim Morrison]

% rm -rf .lake
% lake update Cli -v
info: batteries: cloning https://github.com/leanprover-community/batteries to '././.lake/packages/batteries'
trace: .> git clone https://github.com/leanprover-community/batteries ././.lake/packages/batteries
trace: stderr:
Cloning into '././.lake/packages/batteries'...
trace: ././.lake/packages/batteries> git checkout --detach 8d2100637a91776707ca22636ae8aa04dd5c1e8d
trace: stderr:
HEAD is now at 8d21006 chore: bump to nightly-2024-06-15
info: Qq: cloning https://github.com/leanprover-community/quote4 to '././.lake/packages/Qq'
trace: .> git clone https://github.com/leanprover-community/quote4 ././.lake/packages/Qq
trace: stderr:
Cloning into '././.lake/packages/Qq'...
trace: ././.lake/packages/Qq> git checkout --detach 44f57616b0d9b8f9e5606f2c58d01df54840eba7
trace: stderr:
HEAD is now at 44f5761 bump toolchain
info: aesop: cloning https://github.com/leanprover-community/aesop to '././.lake/packages/aesop'
trace: .> git clone https://github.com/leanprover-community/aesop ././.lake/packages/aesop
trace: stderr:
Cloning into '././.lake/packages/aesop'...
trace: ././.lake/packages/aesop> git checkout --detach f744aab6fc4e06553464e6ae66730a3b14b8e615
trace: stderr:
HEAD is now at f744aab merge master, bump toolchain
info: proofwidgets: cloning https://github.com/leanprover-community/ProofWidgets4 to '././.lake/packages/proofwidgets'
trace: .> git clone https://github.com/leanprover-community/ProofWidgets4 ././.lake/packages/proofwidgets
trace: stderr:
Cloning into '././.lake/packages/proofwidgets'...
trace: ././.lake/packages/proofwidgets> git checkout --detach e6b6247c61280c77ade6bbf0bc3c66a44fe2e0c5
trace: stderr:
HEAD is now at e6b6247 Merge pull request #56 from leanprover-community/batteries
warning: ././.lake/packages/proofwidgets/lakefile.lean:22:20: warning: `Lake.inputFile` has been deprecated
warning: ././.lake/packages/proofwidgets/lakefile.lean:76:36: warning: `Lake.inputFile` has been deprecated
info: Cli: cloning https://github.com/mhuisi/lean4-cli to '././.lake/packages/Cli'
trace: .> git clone https://github.com/mhuisi/lean4-cli ././.lake/packages/Cli
trace: stderr:
Cloning into '././.lake/packages/Cli'...
trace: ././.lake/packages/Cli> git checkout --detach 39229f3630d734af7d9cfb5937ddc6b41d3aa6aa
trace: stderr:
HEAD is now at 39229f3 doc: adjust README for move to leanprover
warning: Cli: ignoring missing dependency manifest '././.lake/packages/Cli/lake-manifest.json'
info: importGraph: cloning https://github.com/leanprover-community/import-graph.git to '././.lake/packages/importGraph'
trace: .> git clone https://github.com/leanprover-community/import-graph.git ././.lake/packages/importGraph
trace: stderr:
Cloning into '././.lake/packages/importGraph'...
trace: ././.lake/packages/importGraph> git checkout --detach 7983e959f8f4a79313215720de3ef1eca2d6d474
trace: stderr:
HEAD is now at 7983e95 Merge pull request #12 from leanprover-community/bump_to_v4.9.0-rc1
info: mathlib: running post-update hooks

[Kim Morrison]

ah, for some reason we are getting 39229f3630d734af7d9cfb5937ddc6b41d3aa6aa from the nightly branch of lean4-cli, rather than the latest 10d88b52fa8d717fa8e29af3abf0c3a2bf175497.

[Kim Morrison]

Oh, is this because it is a transitive dependency via import-graph?

[Kim Morrison]

I bumped that at https://github.com/leanprover-community/import-graph/pull/13

[Kim Morrison]

I can not work out why lake is puling 39229f for lean4-cli.

[Mac Malone]

@Kim Morrison It appears to be getting it from batteries. I don't know why, though. This is something I specifically tested against, but something appears to be going wrong here for some reason.

[Kim Morrison]

What? But Batteries doesn't have any dependencies!

[Mac Malone]

What do you mean? https://github.com/leanprover-community/batteries/blob/main/lake-manifest.json

[Mac Malone]

(from doc-gen4)

[Kim Morrison]

Ugh... someone has committed in doc mode. I thought we didn't do this.

[Patrick Massot]

https://github.com/leanprover-community/batteries/blob/main/lakefile.lean#L21-L22

[Kim Morrison]

(meta if delenda est)

[Mac Malone]

I did that a while back as it is needed to figure out the doc-gen4 that is compatible with batteries.

[Kim Morrison]

Haha, @Mac Malone committed the lake-manifest.

[Kim Morrison]

We really need to get rid of that.

[Kim Morrison]

Batteries is not meant to have dependencies

[Kim Morrison]

If someone or something wants to run doc-gen4 on Batteries, they turn it on privately, and must not pollute everyone else's setup.

[Kim Morrison]

Do you know a reason why I can't commit the correct lake-manifest.json for Batteries without all this doc-gen stuff?

[Mac Malone]

However, I think I realized the test case I overlooked. It so happens that my test case tested the resolution order without dependency package manifests. Relooking at the code, I believe it breaks in the presence of them. I will fix this monday.

A quick fix is to move the CLI dependency to the top of the require block in mathlib.

[Kim Morrison]

I'm committing an empty lake-manifest to Batteries

[Mac Malone]

That can break things in a different way (and will likely be undone soon).

[Kim Morrison]

Okay, that gets rid of the warning about Cli, but the underlying problem remains:

% lake build
info: batteries: cloning https://github.com/leanprover-community/batteries to '././.lake/packages/batteries'
info: Qq: cloning https://github.com/leanprover-community/quote4 to '././.lake/packages/Qq'
info: aesop: cloning https://github.com/leanprover-community/aesop to '././.lake/packages/aesop'
info: proofwidgets: cloning https://github.com/leanprover-community/ProofWidgets4 to '././.lake/packages/proofwidgets'
warning: ././.lake/packages/proofwidgets/lakefile.lean:22:20: warning: `Lake.inputFile` has been deprecated
warning: ././.lake/packages/proofwidgets/lakefile.lean:76:36: warning: `Lake.inputFile` has been deprecated
info: importGraph: cloning https://github.com/leanprover-community/import-graph.git to '././.lake/packages/importGraph'
info: Cli: cloning https://github.com/leanprover/lean4-cli to '././.lake/packages/Cli'
⣿ [?/?] Computing build jobs

[Kim Morrison]

Mac Malone said:

That can break things in a different way (and will likely be undone soon).

How can it break things? And why would it be undone?

[Mac Malone]

(Part of the require overhaul that I working on merging was unconditionally adding conditional dependencies to the manifest.)

[Kim Morrison]

Hmm, okay. We'll deal with that when we get there. Hopefully that is only a small window until lake install anyway. :-)

[Kim Morrison]

And in any case it seems that this problem is orthogonal to the actual blocker.

[Mac Malone]

The current problem is a bug in the resolution refactor (lean4#4371) that results in a change in the package resolution order that I had not intended (and I had tried to test to avoid).

[Kim Morrison]

(Sorry, "current problem" means getting stuck at "Computing build jobs"?)

[Mac Malone]

No, the CLI one.

I am not sure what would cause Lake to hang.

[Mac Malone]

I had hope the fixing the CLI bug would fix it but sadly apparently not.

[Mac Malone]

@Kim Morrison does lake build -v give any more info?

[Kim Morrison]

Unfortunately not.

[Kim Morrison]

Do you want to see if you can repro? It's just the nightly-testing branch of Mathlib.

[Mac Malone]

Sure. What was the last nightly that was known to not have this issue?

[Mac Malone]

Does running lake exe cache get work on machine? (It does on mine.)

[Kim Morrison]

Hmm, the tag nightly-testing-2024-06-12 definitely works, but there will be more in between.

[Kim Morrison]

lake exe cache get runs, but finds nothing.

[Kim Morrison]

Ahha!

[Mac Malone]

Its proofwidgets (run lake build proofwidgets to see)

[Kim Morrison]

Batteries.Lean.Name has been deleted

[Kim Morrison]

and removing all the import Batteries.Lean.Name lines causes lake build to not get stuck!

[Mac Malone]

Oh, so does any library depending on batteries break?

[Kim Morrison]

If you import that missing file?

[Kim Morrison]

That deletion was intentional

[Kim Morrison]

But lake shouldn't freeze because you import a file from another package that doesn't exist!

[Mac Malone]

I don't think it is freezing -- I think proofwidgets is being rebuilt.

[Mac Malone]

And since mathlib is using the old proofwidgets v0.0.36 which is not integrated with the new build monitor, no info is dispalyed.

[Kim Morrison]

Oh, hmm. I think I did leave it in this state for >1 hour this afternoon... but it's possible.

[github mathlib4 bot]

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[Mac Malone]

I tried lake build <pkg> on mathlib's indiviual dependencies and the only that hangs is proofwidgets, hence my conjecture.

[Kim Morrison]

Well, having deleted these bad imports, I guess I am unstuck.

[Kim Morrison]

Hopefully I can leave it to you to work out any lake fixes warranted. :-)

[Kim Morrison]

And hopefully Wojciech will let us bump ProofWidgets soon. :-)

[Mac Malone]

Note that import graph also has the bad battiries import.

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[Kim Morrison]

Tidying up some Name API had broken import-graph, so I had to update its nightly-testing branch and move Mathlib's nightly-testing to that.

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[Kim Morrison]

Should come good after #13855.

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[Kim Morrison]

Again, merging lean-pr-testing-4400.

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[Kim Morrison]

Transient network error?

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[Kim Morrison]

I'm just fixing up for nightly-2024-07-18 now. There are some breakages, and I'm not entirely sure what Lean change caused them. Either lean#4481 or lean#4434 potentially?

[Kim Morrison]

The breakages are in Mathlib.Data.Matrix.PEquiv and Mathlib.Data.Finsupp.Basic.

[Kim Morrison]

I'm done with Mathlib for the day, so if anyone wanted to investigate that would be lovely, and otherwise I'll look more tomorrow.

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[Kim Morrison]

Kim Morrison said:

The breakages are in Mathlib.Data.Matrix.PEquiv and Mathlib.Data.Finsupp.Basic.

I've fixed this, but I'm confused what has gone wrong. It is a few instances where dsimp will no longer use a lemma, and we need to rw instead. I can't work out which underlying Lean change must be responsible.

[Kim Morrison]

For now I've worked around and left #adaptation_notes for someone in the future. :-)

[Kim Morrison]

Quite a few more changes needed downstream. I just added Pi.one_apply to simp sets freely to solve problems...

[github mathlib4 bot]

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[Kim Morrison]

Just a shake

[github mathlib4 bot]

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[Kim Morrison]

Oh dear, still many linter failures.

[github mathlib4 bot]

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[Kim Morrison]

Transient?

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[Kim Morrison]

Just merged branch#lean-pr-testing-4493, hopefully this is enough for today's update.

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[Kim Morrison]

Needed to fix some tests, now that the bodies of examples can not affect the universe levels appearing in the type signature.

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[Kim Morrison]

The underlying failure here is that Batteries has made a Mathlib breaking change, and these land on nightly-testing first.

I'm trying to get the "automatically bump Batteries in Mathlib" automation going still, latest attempt at #14142

[github mathlib4 bot]

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[Kim Morrison]

and now #14143 ...

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[Kim Morrison]

The problem now is that Aesop's nightly-testing branch need to have master branch merged into it!

[Kim Morrison]

(and bump the toolchain and Batteries)

[Kim Morrison]

Also required some universe reorderings due to different behaviour on nightly.

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[Kim Morrison]

Just some simp? says that no longer say spurious lemmas!

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[Kim Morrison]

This was the unusedTactic linter successfully identifying an eta_reduce that had become unnecessary on nightly-testing. Nice!

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[Kim Morrison]

Needed a shake.

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[Kim Morrison]

Sigh, the bot is down and not reporting that nightly-testing is currently failing. :-(

[Ruben Van de Velde]

It is?

[Ruben Van de Velde]

https://github.com/leanprover-community/mathlib4/commits/nightly-testing/ looks green

[Kim Morrison]

Oops, my mistake!

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[Kim Morrison]

There's nothing to be done until lean4#4680 lands tonight.

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[Kyle Miller]

This commit has batteries fixes for lean4#4543, and this commit has mathlib fixes.

These don't build on their own, but they're cherry-pickable.

[Kyle Miller]

Done, updated nightly-testing for batteries and mathlib

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[Kim Morrison]

Can someone help me here? I don't know how to cherry-pick the commit Kyle links to above

https://github.com/leanprover-community/batteries/commit/b1ae464adce816f24439b5830bda7a39c8381f9a

because I can't even find the commit anywhere...

[Kim Morrison]

Scratch that, Kyle has already done it.

[Kim Morrison]

@Mac Malone can you help me here? nightly-testing is consistently getting stuck at ⣿ [?/?] Computing build jobs, despite rm -rf .lake.

[Kim Morrison]

We're at f268021ae5575623c2737370dcf251e0010f0122

[Kim Morrison]

I'm unable to do anything on nightly-testing for now.

[Mac Malone]

@Kim Morrison Is this mathlib or batteries nightly-testing that is stuck?

[Kim Morrison]

Mathlib

[Kim Morrison]

Okay, we're running again. A file had been deleted in Batteries; removing the import causes lake to not hang. Mac is investigating.

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[Kim Morrison]

Oof, problems in import-graph.

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[Kim Morrison]

Gah, I keep doing this: I merged lean-pr-testing-4678, but forgot that this changed the Batteries dependency to the lean-pr-testing-4678 branch, and hence got a slightly out of sync Batteries.

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[Kyle Miller]

There's a simp "lhs simplifies" error for mathlib's docs#List.getLast?_append_cons

It's almost provable by the core simp lemma docs#List.getLast?_append, but it would be able to fully prove it if docs#List.getLast?_cons were a simp lemma too. It's in terms of getLastD though. Maybe this would be better, with some lemmas for handling Option.or expressions.

@[simp] theorem getLast?_cons' {a : α} {l : List α} :
    (a :: l).getLast? = l.getLast?.or (some a) := by
  cases l <;> rfl

[Kim Morrison]

Why not just (a :: l).getLast? = l.getLast?.getD a?

I would prefer that all the D functions unfold via simp to ? function followed by Option.getD.

[Kim Morrison]

It's clear that more thought it still required about List.getLastD, and I'll make sure to look at it soon.

[Kyle Miller]

Right now I'm seeing if mathlib builds without this simp lemma and I'll leave an adaptation note

[Kyle Miller]

Kim Morrison said:

Why not just (a :: l).getLast? = l.getLast?.getD a?

The lemma List.getLast?_append is in terms of Option.or, so I thought that it would be more convenient sticking with that sublanguage, but :shrug:

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[Kim Morrison]

Just needs a shake.

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[Kim Morrison]

Builds and shakes locally, hopefully it will come green shortly.

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[Kim Morrison]

I'm afk for a few days, but this failure looks relatively fixable. The explicitness of pullback.fst/snd was just changed on master, but there were existing changes in nightly-testing and the automatic merge did the wrong thing.

[Kim Morrison]

Just taking a look at the errors and seeing if the current code in master works now may suffice.

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[Kim Morrison]

Just merged master in bump/v4.11.0 and then that into nightly-testing, in preparation for making the next adaptation PR.

[Kim Morrison]

Both stages had quite a few (~10ish) merge conflicts, so presumably I've made a mistake somewhere and they will show up in a nightly-testing failure shortly. :-)

[Kim Morrison]

(Notice also that Lean's nightly releases have been in hiatus since the 12th, so when that resumes soon we'll have a bit of catching up to do.)

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[Kim Morrison]

Merging #14778 (after I fix it ...) should solve this.

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[Kim Morrison]

Sigh...

[Kim Morrison]

A missing import, I'm not quite sure how that ended up missing. I guess lots has been hitting master today.

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[Kim Morrison]

A failure from incoming changes from master. Opened lean#4758 to request a more actionable error message when we need @[ext (iff := false)].

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[Kim Morrison]

Just a shake --update.

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[Kim Morrison]

Just the upstreaming of TransGen replacing Lean's TC, it seems.

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[Kim Morrison]

Needed a shake.

[Kim Morrison]

hmm, and then some tactic import fixes.

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[Kim Morrison]

Just some ext_iff cleanup.

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[Kim Morrison]

Fixed, bad merge when preparing #14846.

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[Kim Morrison]

Hmm, not sure about the remaining errors. Something has changed in elaboration, going to look for relevant merged PRs!

[Kim Morrison]

lean#4722 seems the most likely candidate, and it wasn't tested against Mathlib.

@Kyle Miller, would you have a moment to look at nightly-testing and see if the errors are likely because of lean#4722?

[Kim Morrison]

Failures, all of the form "failed to elaborate eliminator, motive is not type correct", are in:

- Mathlib.MeasureTheory.Constructions.Pi
- Mathlib.RingTheory.ClassGroup
- Mathlib.MeasureTheory.Function.SimpleFuncDenseLp

[Kim Morrison]

Ah, solution seems to just be to remove some elab_as_elim attributes.

[Kim Morrison]

That fixes the latter two.

[Kyle Miller]

That's fascinating that these used to work despite having type incorrect motives

[Kim Morrison]

(Have to run for a moment.)

[Kyle Miller]

You can also add (motive := _) to turn off elab_as_elim. Maybe they're normally ok — it's not an indictment of the theorem, but the use

[Kim Morrison]

Okay, looks good now, thanks.

[Kim Morrison]

Backported removal of the two elab_as_elims as #14876.

[Kyle Miller]

Why are we removing those? They look fine as elab_as_elim at first glance.

[Kyle Miller]

For example, in MeasureTheory.Constructions.Pi you add an explicit motive argument:

theorem pi_of_empty {α : Type*} [Fintype α] [IsEmpty α] {β : α → Type*}
    {m : ∀ a, MeasurableSpace (β a)} (μ : ∀ a : α, Measure (β a)) (x : ∀ a, β a := isEmptyElim) :
    Measure.pi μ = dirac x := by
  haveI : ∀ a, SigmaFinite (μ a) := isEmptyElim
  refine pi_eq fun s _ => ?_
  rw [Fintype.prod_empty, dirac_apply_of_mem]
  exact isEmptyElim (p := _) (α := α) -- added `(p := _)` here

[Kyle Miller]

I'm fixing the motive problems right now and I'll push to nightly-testing

[Kyle Miller]

It seems that there's an issue with lean4#4722, which is that it's checking type correctness of the motive too early. I've left adaptation notes in nightly-testing for now.

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[Kim Morrison]

Just long lines.

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[Kim Morrison]

Looks like #14850 didn't merge cleanly into nightly-testing, there are a bunch of imports to update.

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[Kim Morrison]

(I'm going to be afk for 48 hours.)

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[Kim Morrison]

Looks like just incoming changes from master.

[Kim Morrison]

Hopefully will come good shortly; builds locally.

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[Kim Morrison]

Failing because of LazyList deprecation in Batteries.

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[Kyle Miller]

Kim Morrison said:

lean#4722 seems the most likely candidate, and it wasn't tested against Mathlib.

I do know better than to change the elaborator without doing a full test against mathlib... but adding error detection seemed innocuous :face_with_diagonal_mouth:

Here's a postmortem: it turns out that the cases of elab_as_elim that broke were all using a set of features of the elabAsElim elaborator that individually had bugs but which together sort of canceled out. Adding the motive typechecking caused it to rightfully fail in one of the broken intermediate states. This is all fixed in lean4#4800, and I've eliminated the elab_as_elim adaptation notes.

The trigger was having an under-applied eliminator that had an explicitly supplied argument that was necessary for elaborating the type of an eliminator target, where that target was not supplied. It turned out that another adaptation fix we could have used was to remove such arguments, since they counterintuitively hindered elaboration!

[github mathlib4 bot]

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[Kim Morrison]

Looks like it just needed an ext lemma in Scheme fixes, because of an incoming change from master.

[github mathlib4 bot]

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[Kim Morrison]

Just incoming changes from master interacting with changes to ext lemmas.

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[Kim Morrison]

#15145 will result in this bot including commit SHAs in the messages.

[github mathlib4 bot]

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[Kim Morrison]

Needed an import tweak after changes on master.

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[Kim Morrison]

Adjustments needed for upstreaming and new List lemmas

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[Kim Morrison]

Some linting; new simp lemmas in core.

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[Kim Morrison]

Just needed a shake, I think.

[Kim Morrison]

It would be nice to have a bot that could automate running shake --fix (perhaps falling back to shake --update if a subsequent lake build fails?)

[github mathlib4 bot]

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[Kim Morrison]

More shaking required!

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[Kyle Miller]

For the next nightly, here are a few fixes: https://github.com/leanprover-community/mathlib4/compare/nightly-testing...lean-pr-testing-4817

[github mathlib4 bot]

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[Kim Morrison]

Incoming changes from master interacting with changes to ext

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[Ruben Van de Velde]

Looks like bump/v4.11.0 needs a shake and a merge from master

[Kim Morrison]

Usually we don't fix bump/v4.X.0 directly (beyond a best effort merge from master), just make the next PR coming from a bump/nightly-YYYY-MM-DD green.

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[Kim Morrison]

This was a big adaptation, with a lot of stuff upstreamed. (And a few = replaced by == in low level List theorems, causing some disruption here in Mathlib.) Hopefully it is about to come green.

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[Ruben Van de Velde]

Afk for 6 hours probably, if someone else wants to

[github mathlib4 bot]

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[Kim Morrison]

Ah, oops, when I merged lean-pr-testing-4817 I missed up the batteries SHA.

[github mathlib4 bot]

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[Kim Morrison]

just a shake.

[github mathlib4 bot]

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[Kim Morrison]

Note to self (or anyone): when Mathlib breaks tonight, merge nightly-testing-pre-2024-07-31 into nightly-testing, and reset the Batteries dependency back to nightly-testing.

[github mathlib4 bot]

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[Ruben Van de Velde]

r? #15340

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[Ruben Van de Velde]

Can I also get a quick review on #15299 and #15368?

[github mathlib4 bot]

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (https://github.com/leanprover-community/mathlib4/commit/)

[Johan Commelin]

Looks like something went wrong with inserting the commit hash

[Kim Morrison]

Sigh.

[github mathlib4 bot]

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[Ruben Van de Velde]

github mathlib4 bot said:

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0139a899fdb48caffb0277abf97006b8dace569e).

Looks like mathlib built but some file in batteries that we don't use, didn't

[github mathlib4 bot]

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[Kim Morrison]

Ruben Van de Velde said:

github mathlib4 bot said:

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0139a899fdb48caffb0277abf97006b8dace569e).

Looks like mathlib built but some file in batteries that we don't use, didn't

Trivial fix, include became a keyword. Not sure why the bot didn't complain about Batteries failing, however...

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (35ccd78e25895200656760dd478f0ad21c6f9046).

[Kim Morrison]

Transient network error, restarted.

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[Ruben Van de Velde]

What's the timeline for merging the 4.11 bump?

[github mathlib4 bot]

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[Kim Morrison]

Ruben Van de Velde said:

What's the timeline for merging the 4.11 bump?

I'd been hoping to cut v4.11.0-rc1 from nightly-2024-08-02, but we're still making some last minute decisions about other things to go in. I think it is very likely that I'll cut it from nightly-2024-08-04 when I'm back at work on Monday.

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[Kim Morrison]

Hmm, I made a fair bit of progress (it involved updating all of batteries, quote4, aesop, and proofwidgets, phew!)

[Kim Morrison]

but there are still some mysterious errors here on nightly-testing, that will have to wait (for me, at least) until tomorrow.

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[Kim Morrison]

Oof, the new variable has arrived. :fingers_crossed: for merging lean-pr-testing-4814 into nightly-testing!

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[Kim Morrison]

Haha, thoroughly broken, induction' is now naming all the hypotheses in reverse order. Haven't work out what caused this yet, and off for orienteering :woman_running_facing_right: for the morning!

[Ruben Van de Velde]

Oh no

[Kim Morrison]

I had a quick look through the recent Lean 4 commits, and don't yet see anything that touched induction internals.

[Ruben Van de Velde]

Only about ~1600 uses of induction', we could replace them all overnight, right?

[Kim Morrison]

Haha no, something must have moved under induction''s feet, we'll find it. :-)

[Kim Morrison]

Oh, maybe it is a problem in batteries

[Kim Morrison]

Updating Mathlib master to Batteries main has the same symptoms.

[Mario Carneiro]

did I mess something up?

[Mario Carneiro]

I'm currently clearing the batteries queue, LMK if something needs my attention

[Kim Morrison]

Running lake update in Mathlib causes induction' to name hypotheses backwards.

[Kim Morrison]

About to run out the door for most of the day, not sure if I'll get further diagnosing than that.

[Mario Carneiro]

how could that be a batteries issue, it doesn't even have induction'

[Kim Morrison]

cases' too

[Mario Carneiro]

I'll look into it, enjoy your run

[Ruben Van de Velde]

Found it

[Ruben Van de Velde]

induction' uses splitAtD which reverses since https://github.com/leanprover-community/batteries/pull/919 by one @Kim Morrison

[Mario Carneiro]

pushed a fix

[github mathlib4 bot]

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[Kim Morrison]

Oops. :-) Apparently I got splitAt right, but splitAtD wrong? Need some lemmas! :-)

[Kim Morrison]

Actually, why is the [] case there in splitAt.go? It makes the signature awkward by pulling in l. batteries#921

[Kim Morrison]

I added a theorem too, replacing a very messy proof down in Mathlib.

[Mario Carneiro]

that was there for a reason... it's so that it returns the input unchanged instead of rebuilding it

[Kim Morrison]

I don't understand: it was still running through all of l though, what would it save?

[Mario Carneiro]

it returns an object pointer-equal to the original

[Kim Morrison]

Hmm, okay. I can change it back, but have to be afk for a bit now.

[Kim Morrison]

It's a bit unusual to do this, e.g. we don't do it in take.

[Kim Morrison]

Was there a particular reason to do it here?

[Mario Carneiro]

batteries does it consistently

[Kim Morrison]

Hmm. I'd be interested to see other examples and/or evidence that it really helps. I'm open to the idea, but it does come at a slight cost on the verification side.

[Mario Carneiro]

obviously circa 6 months ago there is no way I'm making a PR to core to fix list methods to do this

[Kim Morrison]

(Sorry for moving precipitiously on that PR; I may not have a lot of time this weekend and wanted to try getting nightly-testing green again. I'll have time to come back to this later.)

[Mario Carneiro]

batteries doesn't optimize for ease of verification of internal invariants

[Kim Morrison]

I'd love to see a case study or benchmark demonstrating a gain; if it's really there I'm game to take advantage of it.

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[Kim Morrison]

Runner failed because it was out of space. I've restarted.

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[Kim Morrison]

Woah, failed with:

System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. (Parameter ''using: node20' is not supported, use 'docker', 'node12' or 'node16' instead.') at GitHub.Runner.Worker.ActionManife

Not sure what that is about. I've restarted and am hoping it goes away?

[Yakov Pechersky]

https://github.com/actions/runner/issues/2619

[Yakov Pechersky]

Not sure which action procced the error

[Kim Morrison]

Wojciech was just rebooting the Hoskinson runners, it seems to have been a transient issue from that.

[Yakov Pechersky]

Possibly it was caught in an out of date GitHub runner state :)

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[Kim Morrison]

There's now a new mergeSort in Lean 4, which is unlike the Batteries (merge) + Mathlib (mergeSort) version is stable (i.e. doesn't reorder equivalent elements).

However it's not a drop-in replacement, because it uses a X -> X -> Bool sort order, rather than a DecidableRel. (And doesn't use the IsTrans / IsTotal / IsAntisymm classes.)

For now, I am just going to rename all the Mathlib declarations with a prime mergeSort', etc, and immediately stitch these back together again.

[Johan Commelin]

sorry for being dense, what do you mean with the stitching back together?

[Kim Morrison]

We should just be able to throw out Mathlib's List.mergeSort' and use List.mergeSort from Lean 4.

[Kim Morrison]

However because of the difference between X -> X -> Prop and X -> X -> Bool this isn't trivial.

[Kim Morrison]

I'm not entirely certain of the solution:

1. Just jump through the hoops of using the Bool version during the limited use required in Mathlib.
2. attribute [local instance] boolPredToPred might be helpful?
3. Perhaps decide to upstream IsTrans / IsTotal / IsAntisymm, and use those in the Lean4 theorems about mergeSort?

[Johan Commelin]

Aha. I think I don't have an opinion on any of those.

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[Ruben Van de Velde]

Where do we use mathlib mergesort?

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[Kim Morrison]

Ruben Van de Velde said:

Where do we use mathlib mergesort?

The only places that broke were setting up sort on Multiset, which in turn is only really used for the Repr instance. I didn't look carefully beyond that.

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[Johan Commelin]

Finset.sort maybe uses it?

[Kim Morrison]

We will need to merge lean-pr-testing-5103 into nightly-testing tonight.

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[Kim Morrison]

also lean-pr-testing-5104

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[Kim Morrison]

Merged changes for #5103 and #5104.

[Kim Morrison]

Tomorrow, then, we'll need to merge lean-pr-testing-5102 and lean-pr-testing-5106.

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[Kim Morrison]

Hmm, ran into an issue, #5126.

[Kevin Buzzard]

lean#5126

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (2b617ccc55051120657715a15bc52a6def10b03c)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ca6a6fdc075f392d6d38c787d5f02f1aa61acfbc).

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[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (cf3b406e1eb61883ac6c23c4cd309f305240007c)

[Kim Morrison]

Need to merge lean-pr-testing-5151 tonight.

[github mathlib4 bot]

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (74dc3f9df45b8768b3662c978c25cdf9de8f17b1)

[Kim Morrison]

We'll need lean-pr-testing-5160 tonight. Also 5163 and 5162.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (74dc3f9df45b8768b3662c978c25cdf9de8f17b1)

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[Kim Morrison]

Forgot to push! :woman_facepalming:

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5608be6564551cffcaf5048d7a3ff5330225e5b8)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b5f7e1c26c6cb2be97c2ad36bf7038c159e359b3).

[Kim Morrison]

Wow, everything is broken. (quote4, aesop, batteries, mathlib)

[Kim Morrison]

oh, just the lakefile is messed up

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cbe86e0d47de1e6c520ba10227801ae6507b5806).

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5608be6564551cffcaf5048d7a3ff5330225e5b8)

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[Kim Morrison]

Still many errors in basic files. We have to add reduceCtorEq to many simp only statements, but the errors currently on the branch are not that. I don't see immediately what has changed, and may not have a chance to look until tomorrow, so if anyone feels like investigating a mystery... !

[github mathlib4 bot]

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[Kim Morrison]

Some of the breakages will need to wait on lean#5187.

[Kim Morrison]

@María Inés de Frutos Fernández and @Filippo A. E. Nuccio, would one of you be able to look at Mathlib.RingTheory.Valuation.AlgebraInstances on branch#nightly-testing. It is thoroughly broken, and I'm failing to see why.

[Kim Morrison]

(And apologies for subscribing you to this very boring channel. Feel free to unsubscribe again. :-)

[github mathlib4 bot]

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[Filippo A. E. Nuccio]

@Kim Morrison I found the problem and the fix: some instances are not automatically found any more. How do you want me to proceed? By opening a PR against master which is not currently needed but will be later on; or to push the fix to nightly-testing or anything else?

[Ruben Van de Velde]

Start with pushing the fix to nightly-testing

[Filippo A. E. Nuccio]

Done!

[Kim Morrison]

Thanks @Filippo A. E. Nuccio, that's very helpful. If you want to backport the change to master that's helpful too, but not essential.

[Kim Morrison]

(The main difference is whether the change shows up in its own commit to master, or as part of a big batch of changes on bump day.)

[Filippo A. E. Nuccio]

... well, opening a PR would take me 30 secs, since it is just two added lines. I confess I don't understand the details of this, so I leave it to you to tell me what you prefer :smile:

[Kim Morrison]

It's fine as is, thanks.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d0a9ca947996b4445409cdc846769bff65aa2999).

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[Kim Morrison]

Invisible changes to emojis ... :-)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8397433488042b9adf0d37952a2cef2d0abb8cfa)

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8397433488042b9adf0d37952a2cef2d0abb8cfa)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (92f9ab8bc286d0d035c63dd386f598693be4cabf).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0844193bcedb553ac72342e6ac8b6ae9a5287a14).

[Kim Morrison]

Somehow there is an import loop?

error: build cycle detected:
  +Mathlib.Init:olean
  +Mathlib.Tactic.Linter.Lint:deps
  +Mathlib.Tactic.Linter.Lint:leanArts
  +Mathlib.Tactic.Linter.Lint:olean
  +Mathlib.Init:deps
  +Mathlib.Init:leanArts
  +Mathlib.Data.Nat.Notation:deps
  +Mathlib.Data.Nat.Notation:leanArts
  +Mathlib.Data.Nat.Notation:olean
  +Mathlib.Tactic.Linter.TextBased:deps
  +Mathlib.Tactic.Linter.TextBased:leanArts
  +Mathlib.Tactic.Linter.TextBased:olean
  +mathlib.«lint-style»:deps
  +mathlib.«lint-style»:leanArts
  +mathlib.«lint-style»:c
  +mathlib.«lint-style»:c.o.export
  +mathlib.«lint-style»:c.o
  +mathlib.«lint-style»:o
  mathlib/«lint-style»:leanExe
  +Mathlib.Init:olean

[Kim Morrison]

And lake build just hangs at ⣿ [?/?] Computing build jobs. @Mac Malone, you might want to look at the above commit and see if you can identify why it is hanging? Even in the presence of import loops I thought that shouldn't happen.

[Kim Morrison]

Removing Mathlib.Init from Mathlib.Tactic.Linter.Lint seems to have fixed it. I'm not going to investigate further.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ea3ee6af494fcc4cbaab83222535f3c51d5ed461).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bceec0497e2858063cfdc794f7a9c777d2cf0277).

[Kim Morrison]

Offline all weekend. :-) :humpback_whale: Breakage doesn't look bad, hopefully back shortly.

[github mathlib4 bot]

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d2a59c1717b96952920b6d524e98452e6207e8e1)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (00df099f8ed42c12b35cdedcfbf1fde6c7413662).

[Kim Morrison]

Merging lean-pr-testing-5227. 3.5% instruction count improvement incoming!

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b21451955e08c69f627055e9f7fcb78105c7507b)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (91d155587e2c92d55afb8565687863555bfc300c).

[Kim Morrison]

Just needed lean-pr-testing-5228 merged.

[Kim Morrison]

(I also reset nightly-testing to match master. The old history is still available on the nightly-testing-YYYY-MM-DD tags.)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e5003139f419c2f87f122db01fe513dc34b784d3)

[Kim Morrison]

Hmm, the reminder bot didn't fire.

[Bryan Gin-ge Chen]

This might be the failed run: https://github.com/leanprover-community/mathlib4/actions/runs/10693508556/job/29643765613

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e5003139f419c2f87f122db01fe513dc34b784d3)

[Kim Morrison]

Ahha! bump/v4.13.0 doesn't exist yet.

[Kim Morrison]

I guess that is okay to expect a human to do.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e5003139f419c2f87f122db01fe513dc34b784d3)

[Kim Morrison]

Hmm, it seems that not only bump/v4.13.0 has to exist, it needs to be on a nightly toolchain, otherwise the reminder script breaks.

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e5003139f419c2f87f122db01fe513dc34b784d3)

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[Kim Morrison]

I messed up the implicitness of arguments to ite_eq_right_iff, but these will revert tomorrow.

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (dfbd837a1da3cc0257ec101c10561cb85c0ca325)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fd6c31182d6b88c28e04d9bee8df7e6a54e279e4).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (dfbd837a1da3cc0257ec101c10561cb85c0ca325)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fd6c31182d6b88c28e04d9bee8df7e6a54e279e4).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3733a7d6b281e3747174fd89a25399abb9d74db8).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fd286d4a4ae0633563f7b7f8cab33c43289877d5).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (24fce2d2db1a7ed39c8c5bdaf300d2ddfc83313f).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (24fce2d2db1a7ed39c8c5bdaf300d2ddfc83313f).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (24fce2d2db1a7ed39c8c5bdaf300d2ddfc83313f).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ca6172cd68f7d0ed10ebeafe185369830a80a0a1).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a4b56a06989de44e5758843c8ee1557c39e8d313).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b0bb2eabcd30264cc87468a8ba6d1b898871e251).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8e11f3bb7182ebae9b94343eae182c6866962dad)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f90f08370493c760090c45a91fe9736556504346).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ce32dd9cb55e73ae0b8f4340e4c8e8cd0ddf91e7).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (19b4c40bc454221b94bcaeb093d849639273e6cc).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (697358aac3153b635c90289bf62c757d4a387f94).

[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (75f3daf8cc2fb299b4d1e6f32624e975571df02f).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d17749b757dec0421fa431f4b718b2eb32f45a0b).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (12972e5e1c216e329d4b99737393123dd01e228e).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b63d3d7badd8425f556e02856b0f437bf782a612).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (48b2de3ddb0ecf2389c032717dd9053797be3ad2).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3fecb249afcf5ba40efe0a3f92f69e2460f142c7).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (45faa3eea1dbc6c8336f8a8d288b8871564d5da4)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f7f80c239977dd8a06d9158a95efd03767d6ed68).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (45faa3eea1dbc6c8336f8a8d288b8871564d5da4)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1a0ce78731ee2c96b9823665cbb2052d1be9e400)

[Kim Morrison]

We will need to merge lean-pr-testing-5287 tomorrow.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1a0ce78731ee2c96b9823665cbb2052d1be9e400)

[Kim Morrison]

Also lean-pr-testing-5285.

[Kim Morrison]

Also lean-pr-testing-5288

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1a0ce78731ee2c96b9823665cbb2052d1be9e400)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ba034836fdc5fe55f9903781364a9a1a4cbb0f55).

[Kim Morrison]

Merged those three branches into both batteries and mathlib, lets see what happens!

[Kim Morrison]

A few more breakages from List API changes that I didn't test Mathlib on ahead of time, but looking good!

[Kim Morrison]

We will need to merge lean-pr-testing-5231 tomorrow (2024-09-11)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3bebc671e9c9c1b535ad7ce3a6f96a2263835424).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a24b5c58241139e2f8d1d41d0ca75c77f66c1c6c)

[Kim Morrison]

also lean-pr-testing-5300

[Kim Morrison]

possibly also 5301, not sure if it will be in by the cut-off

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a24b5c58241139e2f8d1d41d0ca75c77f66c1c6c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4b83244f3ea8cf1ebc70f68bc5b94691e826c827).

[Kim Morrison]

Oof, merging lean-pr-testing-5231 was painful, many spurious diffs apparently. We'll have to check the next adaptation PR carefully to see I didn't mess up.

[Kim Morrison]

Merged all adaptations for 5231, 5300, 5301 (and 5301 to batteries too). Off to CI.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4b83244f3ea8cf1ebc70f68bc5b94691e826c827).

[Kim Morrison]

Just a shake!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (53d5e938e36f196da71b8397bb5b8bb62e2a2bdd).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ef71a8c9cccfbcebe64cf2d67f38bf09a01033fa).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ef7e491abf105a095ad1ad854cafb009dca3396c).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d1657b5fa11d79e2b5ccc9019c3ec8826d40e8c5).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (216c754008de909a8ecc89695c745846c9b736a3).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (9405e9af9c4db56c19da07c118e4153fee571727)

[Kim Morrison]

lean-pr-testing-5302 needs merging tonight

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (9405e9af9c4db56c19da07c118e4153fee571727)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (002afcff4587088469cc9adf06068c4bd6f3daeb).

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (c8f802fb69c54d2c197eb1c2a31409da21d98d57)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (776511a5ea0680f999a3792344763bf898fa2246).

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8cefabf7abc9875bcbe0656ebb4b83fa65a76a5c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f19f21c054039f3bcf6e96fbbea4fb78937daeb4).

[Kim Morrison]

Merged lean-pr-testing-5329, back to CI.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9e2a933e5b9357cd2b4802f7b02bdea98f580c14).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4f3889a86ffac7efae3ba1b0024b34f7ac1a8bc1)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (fcf04cd57e0d8399ce3f21dae009d2ca2d3abd26)

[Kim Morrison]

We will need lean-pr-testing-5303 tonight.

[Kim Morrison]

Also lean-pr-testing-5351

[Kim Morrison]

Also lean-pr-testing-5331

[Kim Morrison]

Also lean-pr-testing-5294

[Kim Morrison]

Also lean-pr-testing-5354

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (fcf04cd57e0d8399ce3f21dae009d2ca2d3abd26)

[Kim Morrison]

Also lean-pr-testing-5356 (I slightly delayed the nightly to squeeze this one in.)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cc2c5288193edfd09bc4bf4eb6e0b26459c8572e).

[Kim Morrison]

All merged.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e9842c947725cc37c92d023e414f946a318bfd86)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab21cb1b654a53e71fa3c950f9650c544bb582e6).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e4699dfe66fd5a01a8a0f85b8cde6c555f25c3a1).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b755dda4cc224e363581d92a4d0b470d28742d4c).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9a321de82209309619b2f76efee973b6ab5808b1).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9801c67765e45f8224d33f2d1863ab5ec08548b8).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a5f5e464b94b32dbc60917f5e49e58c4b0bce6e0).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3b220c587207ebfe48e7bcc3634b403756877e90).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e645d886ff9a51fe2ee08f962b5e51beaaba8119)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (58d12e884e3ad7168e1278fcde332ba843964afe)

[Kim Morrison]

We will need to merge lean-pr-testing-5380 and lean-pr-testing-5381 tomorrow.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (58d12e884e3ad7168e1278fcde332ba843964afe)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ca613b5c52e6c064681fc5da427208e8fa9fbb52).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (51a9d75766204ed306daf9b12f34105a477e2a1b).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (38dfa07f6fae335a6df1eed502afb7783ced97dd).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6b33760c50695343a2a94aa9e67dd9b84aa71868).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6b33760c50695343a2a94aa9e67dd9b84aa71868).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f2c6dd5e664931cac7e67308425179ff12b9c568).

[Kim Morrison]

Kim Morrison said:

We will need to merge lean-pr-testing-5380 and lean-pr-testing-5381 tomorrow.

Done.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (74fc63fadb6c60c2d7bf1a74cf9db7a76666b3ad).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d31ca8563e6e8db1130c64236aaae695ae9282c1).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (094c514c02044ce08421952aef5a9fc1e8600f61).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0e7d55443d22f4e179f761356d0247fd2e122c00).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (02caa3e1a58598830039cdfc9f277714e1846dfc)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6dcd0d943385f315b956fc76968c842a3ad4072c).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (33b95b3e8b1593c67e03565adbc04b323e2437a4).

[Kim Morrison]

merging lean-pr-testing-5376, wish me luck :-)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8975918ef97a48d09b1b8706a91bdfd0e1a3361e)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4cebeb5b6632e5e738dcecc6831c6ea4ec20e9ee)

[Kim Morrison]

We will need to merge lean-pr-testing-5405 tonight.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4cebeb5b6632e5e738dcecc6831c6ea4ec20e9ee)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6fd58d5c798b0c1754df37d5eb213c1ce5326b33).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b4dda71e1bd8297df387af10ff0ca7f0a5127385).

[Joachim Breitner]

Kim Morrison said:

We will need to merge lean-pr-testing-5405 tonight.

NB: this changes batteries only, not really mathlib.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (09c50fb84c0b5e89b270ff20af6ae7e4bd61511e).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b3bc833ae962ba9c7eafa4116e7dc8dfe967b0fe)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9a329fb9ed78734d85679055a2a748ea804ea403).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (305ddf1349def3aa813838a62f73592b81759784).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b978dc4ce9ac8b9d3b46b5fe1c22dc11a010dd8b).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8192b1aeed705058e2c7369599897104813e0ba0).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3b44012533a6ff066c683a2a4a4320b7997c27df).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fd587965db77dd971e90f7d1861a2863b1b6c367).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b3bc833ae962ba9c7eafa4116e7dc8dfe967b0fe)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c15e46e9bd6a62f3d9187d1b433ceefd9bea4749).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f9a6642793ae66d29f800b7d153fb2af807a18ad).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (08a9b5c185b952bb4a0c628361f4b2f8fe7eb623)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b479ce63ba159bc287f99242ed9fb313ea7668da).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6d0638698bd9e481c26abc2827b7d7a53ebbc115).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9c5f43190beca396e21a967800dd977750acbb78).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (08a9b5c185b952bb4a0c628361f4b2f8fe7eb623)

[Kim Morrison]

@Johan Commelin, the bot did not generate a reminder today.

[Johan Commelin]

Oops, weird. I didn't touch that workflow at all. Will try to find time to investigate. But lots of teaching and meetings today.

[Kim Morrison]

Oh, false alarm, sorry, I am just confused.

[Kim Morrison]

We're not expecting one yet

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f7eb186981d26df6a660ad65bc92771d8bcf146b).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7c93f8663cb1931f808aae5066e978e043557dbd).

[Kim Morrison]

We'll need to merge lean-pr-testing-5464 tomorrow.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4591e55bbcc5a0ff893487a5a8db65953909ea48).

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f22e9cb44e572aa5c27f2b3e5136e365e36bf1c3)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a95aae112143332f4f21618ff217e17b50be5dc7).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5f551d9f89a062d62820d2b02d2f7782fc5dbf98).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (15dec28087d004fe2b06c085b54c795c7c3b3c54).

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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f22e9cb44e572aa5c27f2b3e5136e365e36bf1c3)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (aaff5ad5b038e792f9225de7fe6a37c9689b6ec8).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (20ec679d5169e14e3aea2592db220a2753f840d1).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (28af5205699f7d1945d148ebb846cd60a08e74a6).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (0510a8eb7a3628edd2b79c33efa04c93f377281d)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a94fd6ee3ccf9fde6e47075859d8c1f682579fd3).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a94fd6ee3ccf9fde6e47075859d8c1f682579fd3).

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a94fd6ee3ccf9fde6e47075859d8c1f682579fd3).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0f85ae293d320fb099968a022574b5a427ce253c).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7abd698384e16028dce447cb84f5f342512deaec).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (418c53780957030e8fd99d2007872a87ad82d9e6).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7da2960d5ff6656028a8d2bece5370ad5859b270).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2b108d1e9018455f2a4d06b17b06a0f689f42278).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (c0c2c8fac501e8c0580177432e21fd461cb64580)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a087cde0a3dc36762e4954ff1b2763540431aa18).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a087cde0a3dc36762e4954ff1b2763540431aa18).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9b9053eacfc271ea559687f4336b6f3f34d92ecc).

[Kim Morrison]

There are some failures now in AlgebraicGeometry, that I probably won't have time to look at until tomorrow. If any algebraic geoemeters who see this want to take a look, that would be great. :-)

[Kim Morrison]

Oh, actually they were easy.

[Kim Morrison]

Kyle's changes to how @ and named arguments interact.

[Kim Morrison]

lean4#5283

[Kim Morrison]

and just found Kyle's better adaptations on lean-pr-testing-5283. We really need to automate discovery / merging of these branches in nightly-testing..

[Kyle Miller]

Darn, I thought about mentioning the fixes in lean-pr-testing-5283, but I wasn't sure if that was just going to be noise

[Kim Morrison]

No, all good, it's a process problem we have here.

[Kim Morrison]

We either need a bot that, after the release of a new Lean nightly, either:

1. posts here with a summary of all the relevant lean-pr-testing-NNNN branches that have changes on them
2. actually merges them directly into nightly-testing

[Kim Morrison]

2. feels somewhat scary, but would significantly reduce work/confusion on my part

[Kim Morrison]

hmm, lean-pr-testing-5283 didn't quite work, there is now a problem in Data/Nat/Defs involving a named argument

[Kim Morrison]

(on nightly-testing)

[Kim Morrison]

and I really should run now.

[Kyle Miller]

What's the current status of nightly-testing? Are they my adaptations?

[Kyle Miller]

I can take a look

[Kim Morrison]

Yes, I just merged lean-pr-testing-5283 into nightly-testing

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2845f11d96267fc699a8c1024e3caf998d4b3fdc).

[Kim Morrison]

(I was about to say you won't have a cache, but ...)

[Kyle Miller]

Something went very wrong with the merge for lean4#5283 itself... I need to figure out where the changes actually went!

[Kyle Miller]

I see, I did a last-minute rebase on the wrong computer, using early version of the branch :man_facepalming:

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (197417dc8fc00c22a2e575192767564190f1417e).

[Kyle Miller]

That's an embarrassing mistake. I now have lean4#5512 with the missing part of the PR, and I'll merge it after some testing. We'll need a new nightly before the 5283 fixes will work.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4cd4cfb8ebb1f63252cdeaf0f82009b4cf19ae06).

[Kim Morrison]

(As Kyle says above, we'll wait for the next nightly before fixing this.)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c8df482f4de3224efdb7bb67160f0af3ef3bc065).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9491960f1f448fa353e840f5b146feea22d5dbfd).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a6006d2f1d3d5ffc24da15256c54ff36b26d9f61).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a6006d2f1d3d5ffc24da15256c54ff36b26d9f61).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a6006d2f1d3d5ffc24da15256c54ff36b26d9f61).

[Kim Morrison]

We'll need to merge lean-pr-testing-5520 tomorrow.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (62eccbcb33b8a9fc8e7cc61cd546298b52f0c29b).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (54358ec938bcf95978586464cbd1010833f6970a).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (301f54abf16c4d7706fb65a94ece16e384d6622e).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (301f54abf16c4d7706fb65a94ece16e384d6622e).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4a9dd28c84b0d3bf0bc7b70e1767c367da41de99)

[Kim Morrison]

We'll need to merge lean-pr-testing-5526 here and at batteries tonight.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4a9dd28c84b0d3bf0bc7b70e1767c367da41de99)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eed3300c27c9f168d53e13bb198a92a147b671d0).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (0c3346c1787354ee3398f5cefa726ff51938f9b1)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2db234e2d5db1c1df0efbbaf581cc1c46194a12c).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cb03ac23046975efec06f8795593e438d39a373b).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (0c3346c1787354ee3398f5cefa726ff51938f9b1)

[Johan Commelin]

Huh? That's the exact same hash as 3 messages above it...

[Kim Morrison]

We'll need to merge lean-pr-testing-5529

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0da2361bd278b7158de3a93c1e39b29b63aae58c).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (809c3fb3b5c8f5d7dace56e200b426187516535a).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (809c3fb3b5c8f5d7dace56e200b426187516535a).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2cb73c7a2936f65cffe50de51138795da5df8939).

[Johan Commelin]

#17329 makes these messages a bit more actionable

[Johan Commelin]

Branches that we should probably merge today:

lean-pr-testing-5486
lean-pr-testing-5529
lean-pr-testing-5530
lean-pr-testing-5546

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f73be5b0ca97f80cde7c032e61b68b20a5835794).

[Johan Commelin]

Only the branch that Kim posted has an actual diff.

[Johan Commelin]

@Kim Morrison I merged that branch.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1fe4aec4735318982df91ad8ff0581406c6b625e).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1fe4aec4735318982df91ad8ff0581406c6b625e).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ebdf9cca3c351868ae7c2786096256474715e5e2).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ebabb3402ee09467a5836072a47b298486eacf4a).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ebabb3402ee09467a5836072a47b298486eacf4a).

[Kim Morrison]

transient

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1235f45ece3c1f049543e58769e29b31340f7269).

[Kim Morrison]

Oh, I think we're not going to get further than that today because of the lake errors. Hopefully fixed in a few hours on the next nightly.

[Kim Morrison]

(Which, :fingers_crossed:, becomes v4.13.0-rc1!)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3fdb944d51949cc06cd938cdf78df3e87ef4c5c3).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7fc7838ae4893e5ae499695841fe5c57ee4c0a08).

[Kim Morrison]

Lots to do here, not sure if I'll get to it tonight.

[Kim Morrison]

Have to start in Batteries, some metaprogramming things were upstreamed.

[Kim Morrison]

and some HashSet stuff

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b91c5b63fd9ad104b16ea34bd259162dd1850b9e).

[Kim Morrison]

Another problem with lake has come up, anyone touching nightly-testing will need to use lake --no-cache build.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c4b22ac853b671670de4eb12d2c36a3692d25673).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4236727d21dcfef1c709eb7801331d10755e06bc).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c472200bb60e0adf2bf0cea4b0d04985511b276d).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (551dfed37fb761cc7bc33eac160eae1771191226).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (20a854cda8bedffea00955e1b174ae4c7f72b269).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (655d653bfd6eb4968829ce8e2b5e4ed0419f6f05).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f84123514f85483265d95458b3203f81651de3f2).

[Kim Morrison]

nightly-2024-10-03 is out, and looking better locally.

[Kim Morrison]

Hopefully this will become v4.13.0-rc1 shortly after we get a tick here.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5da739c04be092369c9258dd09eb3c9d47841108)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (70102953aa125ae9abd08cd7d0ab8f4194055834).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5da739c04be092369c9258dd09eb3c9d47841108)

[Johan Commelin]

#17399 should hopefully automate determining which lean-pr-testing-NNNN branches need to be merged on a given day

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (78b3a02235527543f0c61118f06b48d44fa96a32).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (78b3a02235527543f0c61118f06b48d44fa96a32).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (3809315f2f79b1028a9a1e22c5f18be1f2da21bc)

[Johan Commelin]

Awesome!

[Johan Commelin]

It was bubbling to the top of my todo list to fix this.

[Johan Commelin]

@Joachim Breitner I guess that was you? Merci!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5017a681823e948dea4ad55740d86cc8754e4ea6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3ce877a139a51fb84abba4cd2d86078d64e848f9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a239b9573c31a8a440e726e42bdc39c956ef5e0e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dde8da66e3a5773f20dceaea8d37e91ffcb5183f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2e8a2b233a733bcfb8f95c9498a18d905e697558).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3693fb294c1201f0b69ba48e98d083d2bb3e630d).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

I've merged lean-pr-testing-5560

[Johan Commelin]

Hopefully we'll have a green checkmark again today

[Johan Commelin]

I'm getting

warning: ././././Mathlib/Analysis/CStarAlgebra/ContinuousFunctionalCalculus/Instances.lean:608:44: `Isometry.uniformEmbedding` has been deprecated, use `Isometry.isUniformEmbedding` instead
warning: ././././Mathlib/Analysis/CStarAlgebra/ContinuousFunctionalCalculus/Instances.lean:629:52: `Isometry.uniformEmbedding` has been deprecated, use `Isometry.isUniformEmbedding` instead
warning: ././././Mathlib/Analysis/CStarAlgebra/ContinuousFunctionalCalculus/Instances.lean:653:63: `uniformEmbedding_subtype_val` has been deprecated, use `isUniformEmbedding_subtype_val` instead
warning: ././././Mathlib/Analysis/CStarAlgebra/ContinuousFunctionalCalculus/Instances.lean:659:4: `uniformEmbedding_subtype_val` has been deprecated, use `isUniformEmbedding_subtype_val` instead
warning: ././././Mathlib/Analysis/CStarAlgebra/ContinuousFunctionalCalculus/Instances.lean:678:4: `uniformEmbedding_subtype_val` has been deprecated, use `isUniformEmbedding_subtype_val` instead
warning: ././././Mathlib/Analysis/CStarAlgebra/ContinuousFunctionalCalculus/Instances.lean:684:4: `uniformEmbedding_subtype_val` has been deprecated, use `isUniformEmbedding_subtype_val` instead

which is fine, I can fix those. But I'm a bit surprised that they didn't go away after merging master.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (3809315f2f79b1028a9a1e22c5f18be1f2da21bc)

[Johan Commelin]

:sweat_smile:

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (bbd5da4d2d2b4e5950ad78a8ee60a6b477ccab6e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0d4b02ed386a928bde1684cb15c64b7e2a1aa38d).
You can git fetch; git checkout nightly-testing and push a fix.

[Damiano Testa]

Sorry, I broke nightly-testing: I had pushed a fix that depends on lean4#5644, but it seems that the PR that makes my changes a fix is not implied by nightly-testing!

[Damiano Testa]

I don't really know what to do though...

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (964c714dda9a83f8856e82be83ca185745bfc3a8).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

Damiano Testa said:

I don't really know what to do though...

We could wait for the next nightly :-)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fb07d0ded9b50108d6af885ddb66842e3396f1c2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f4131e1aae877c36385bf386ad356471ddf6d6e0).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

https://github.com/leanprover-community/mathlib4/actions/runs/11247758087/job/31271752035 shows that a bunch of tests are failing

[Kyle Miller]

I think we need the next nightly @Johan Commelin; nightly-testing is still on leanprover/lean4:nightly-2024-10-08.

[Johan Commelin]

Aah, I actually don't know what time of the day lean thinks is "night"  :rofl:

[Damiano Testa]

Btw, I think that the failing tests are due to the fact that I "adapted" the branch to the changes in #guard_msgs and I think that the should work using lean4#5644.

[Kyle Miller]

Judging by when https://github.com/leanprover-community/mathlib4/blob/nightly-testing/lean-toolchain was last updated, maybe it'll update again in about 2 hours 20 minutes

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8e7a3003b71cbd354f44d2e204b36e937ba9eb39).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

The toolchain looks like it updated 18 minutes ago, so "Lean midnight" is 8:23AM UTC

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (77a0e20869a4746d978f3b85ff8366d020728eef).
You can git fetch; git checkout nightly-testing and push a fix.

[Damiano Testa]

The failure is again "just" #guard_msgs, but at least the fixes that I introduced work! There are "new" failures.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e2b29fbc0b174dd424a34be581001dea179cd915).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

@Kyle Miller @Damiano Testa Is this diff to be expected?

diff --git a/test/HashCommandLinter.lean b/test/HashCommandLinter.lean
index 7f77ef113f..073acaf21b 100644
--- a/test/HashCommandLinter.lean
+++ b/test/HashCommandLinter.lean
@@ -28,7 +28,8 @@ section ignored_commands
 #check 0

 /--
-info:
+warning: `#`-commands, such as '#eval', are not allowed in 'Mathlib'
+note: this linter can be disabled with `set_option linter.hashCommand false`
 -/
 #guard_msgs in
 -- emits an empty message -- the linter allows it
diff --git a/test/dfinsupp_notation.lean b/test/dfinsupp_notation.lean
index ed6511532b..e4988503d7 100644
--- a/test/dfinsupp_notation.lean
+++ b/test/dfinsupp_notation.lean
@@ -7,18 +7,12 @@ example : (fun₀ | 1 | 2 | 3 => 3 | 3 => 4 : Π₀ i, Fin (i + 10)) 1 = 3 := by
 example : (fun₀ | 1 | 2 | 3 => 3 | 3 => 4 : Π₀ i, Fin (i + 10)) 2 = 3 := by simp
 example : (fun₀ | 1 | 2 | 3 => 3 | 3 => 4 : Π₀ i, Fin (i + 10)) 3 = 4 := by simp

-/--
-info:
--/
 #guard_msgs in
 #eval show Lean.MetaM Unit from
   guard <|
     reprStr (fun₀ | 1 => 3 | 2 => 3 : Π₀ i, Fin (i + 10))
       = "fun₀ | 1 => 3 | 2 => 3"

-/--
-info:
--/
 #guard_msgs in
 #eval show Lean.MetaM Unit from
   guard <|
diff --git a/test/jacobiSym.lean b/test/jacobiSym.lean
index 916deb2aa2..0d010e4254 100644
--- a/test/jacobiSym.lean
+++ b/test/jacobiSym.lean
@@ -10,29 +10,29 @@ We test that `@[csimp]` replaces `jacobiSym` (i.e. `J(· | ·)`) and `legendreSy

 open scoped NumberTheorySymbols

-/-- info: -1 -/
+/-- info: Int.negSucc 0 -/
 #guard_msgs in
 #eval J(123 | 335)

-/-- info: -1 -/
+/-- info: Int.negSucc 0 -/
 #guard_msgs in
 #eval J(-2345 | 6789)

-/-- info: 1 -/
+/-- info: Int.ofNat 1 -/
 #guard_msgs in
 #eval J(-1 | 1655801)

-/-- info: -1 -/
+/-- info: Int.negSucc 0 -/
 #guard_msgs in
 #eval J(-102334155 | 165580141)

-/-- info: -1 -/
+/-- info: Int.negSucc 0 -/
 #guard_msgs in
 #eval J(58378362899022564339483801989973056405585914719065 |
   53974350278769849773003214636618718468638750007307)

 instance prime_1000003 : Fact (Nat.Prime 1000003) := ⟨by norm_num1⟩
-/-- info: -1 -/
+/-- info: Int.negSucc 0 -/
 #guard_msgs in
 #eval @legendreSym 1000003 prime_1000003 7

@@ -40,7 +40,7 @@ instance prime_1000003 : Fact (Nat.Prime 1000003) := ⟨by norm_num1⟩
 /--
 warning: declaration uses 'sorry'
 ---
-info: 1
+info: Int.ofNat 1
 -/
 #guard_msgs in
 #eval! @legendreSym (2 ^ 11213 - 1) sorry 7
diff --git a/test/success_if_fail_with_msg.lean b/test/success_if_fail_with_msg.lean
index 5f9f786e3e..1e190fde9d 100644
--- a/test/success_if_fail_with_msg.lean
+++ b/test/success_if_fail_with_msg.lean
@@ -54,8 +54,5 @@ def doesntFail : MetaM Unit := do
   try successIfFailWithMessage "I failed!" alwaysFails
   catch _ => throwError "I *really* failed."

-/--
-info:
--/
 #guard_msgs in
 #eval doesntFail

[Johan Commelin]

The

-/-- info: -1 -/
+/-- info: Int.negSucc 0 -/

looks suspicious to me.

[Ruben Van de Velde]

(deleted)

[Johan Commelin]

I pushed the diff above, but I'm happy to revert it later.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dacf74d6a54b0e776c97c90f3a1b9e8ef61f596e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9b43951ca72df001cffd7fbab1023a00282824ef).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

So now a different set of tests is failing...

[Kyle Miller]

Johan Commelin said:

I pushed the diff above, but I'm happy to revert it later.

This seems to be that #eval is now using ToExpr instances, and there are some quirks that will need some attention.

We could set set_option eval.pp false for now in that file to go back to using Repr instances.

[Kyle Miller]

I can look at the failing DeriveFintype tests later, those are odd.

[Johan Commelin]

Merci!

[Kyle Miller]

But the rest of the failures look like they might be fixable with a set_option eval.pp false at the top

[Johan Commelin]

How do I run the tests locally? I can open a file, and that works. But I want to see the build output for all tests...

[Johan Commelin]

lake build test does something, but doesn't give warnings/errors.

[Damiano Testa]

I think that CI runs lake test.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7817d20eb8249e7a5acd2eef4e046b37407b7f2c).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

Tests might be fixed now

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ccfb9511e1875f89123857f93865228ade8d0cef)

[Johan Commelin]

Awesome!

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ccfb9511e1875f89123857f93865228ade8d0cef)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f7673a183937ba5589f2e3703634049778a222f8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (09585751583f599964186a8a58e01049d31867bd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9d0db8d63b38ae04d5fcf91ce6f9e6da13d64402).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f8265e0bc7f8d78fe5400a670368139e1aff0f2d).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

This error is waiting on #17567 to be merged

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5c179825b962cca3ba1fae66444dea32a12de3f2)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7a7d5c09605f625446d7957ab54cbe9b486f0e34).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e4fa33c4f2bc49e66f5d06e91e21fe2279ad7e14).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9a934121c2756d98feab3cf79738ab3121d96deb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (85cf1f190af7b00a5990fd5644f9a28c188eb4a6).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

#17655 will fix the failing tests

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ae22b2a2e15bd80aa1472ec0cc5f25c043db4f5f).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

Ah, there are still a couple more structure ... :=s to address in tests. I can fix them tomorrow

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9ba2d95ba478bcccea37c7f1f84932d364d9b314).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c35f067077ad7e27b7545e804de9ec7f477aa938).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (db094871afb9880e24c7558524a392fc998b96da).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0405d97af3ed0666079ab4ff41eab850d2867a17).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (90cf978d2237de99eb5a639301b5b0b3f913d744).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a02b71d090e5b5df65cda5ffbefb58b3ffb168b8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1fb2cbcfda77d978c076acdf586d370b83a7d4fb).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

#17688

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1fb2cbcfda77d978c076acdf586d370b83a7d4fb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e7062ed4631c76a999e1988a0d6a6b04a54684e1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e7062ed4631c76a999e1988a0d6a6b04a54684e1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (6125cddcb7541bb61d58f6f316cdd43b9c962e17)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5d2ccbb3e5b5df402d3b88f4c9aa0cd2ac986130).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

This should come good once #12540 lands in master.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7fe7e109014be7b69a513af14c44df3d3ab680c9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (663637410a7edbee9fc0737ff0fdd01edd35a4b4)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d376bfc5782e90bafe2815b936ece41bf3b69f05).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (41475d2a4e4da9da4278bd2b328e51a8717cf53a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

We'll need to merge lean-pr-testing-5716 tomrrow

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5f0628eab56cdcf7a33982a270433e0fc3a6e9a5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c9428b0dd6704e88e5703a7c1ab96dbcbac9ea41).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f87f0ec95cec45e45bdbeba6aa7f6c02a542f1cd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1b5eaee6c30b1cbe7669e1c4c125eb11d21ef5e8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (27ca8188dc20fb61ac2f2878268ce5748a324a6c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (af9a9c9ca2d15cc943a98510094e76a55cd8d988).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (244c025036bbbb74adc16d44932b3516c3aa9c93).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c63a0ac5dcbcea2165fdbbbe8be00cdf3b2a731c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (36bb3d003e48d0b7aef637b5e35e36f2389310e1).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Waiting on #17791 now

[Kim Morrison]

(which itself needs a shake)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ee226537119c803ac2a107a458a136994addf4d6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (264cb92bc96c0f0e1a92ea20524a1de270b3f008)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (765ccc9135f3ebeec047798d6c715dc3224c0c73).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b913345e5847bd22f23ab83b6256654095f161eb).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

We'll need to merge lean-pr-testing-5323 tomrrow

[Kim Morrison]

Hmm, right now on nightly-testing I get:

% lake build
⣿ [?/?] Computing build jobs

hanging forever.

[Kim Morrison]

Can anymore else reproduce?

[Kim Morrison]

@Mac Malone, could you take a look at this?

[Kim Morrison]

(rm -rf .lake doesn't help)

[Kim Morrison]

I think this means I'm stuck on fixing nightly-testing.

[Kim Morrison]

CI appears to also be stuck at this point

[Kim Morrison]

Ah, it is a missing import. Still, lake shouldn't hang like that because of a missing import. @Mac Malone, 06dcc3e054eb5821fc61a639cf9a091e04bf716a is the commit where I fix the problem. Could you take a look?

[Kim Morrison]

We'll need to merge lean-pr-testing-5731 tomorrow into import-graph, aesop, batteries, and mathlib.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ebec1b61db40c3352391654316f3644e268fee46).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1aaa5b99d39e4bc03db73fd848a03062b974846f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8d6f380fde8631e39a62b5a009b2ffec2eb3c17f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ede775853cc9f271a9fcf1475dec887f82544e30).
You can git fetch; git checkout nightly-testing and push a fix.

[Mac Malone]

Kim Morrison said:

Ah, it is a missing import. Still, lake shouldn't hang like that because of a missing import. Mac Malone, 06dcc3e054eb5821fc61a639cf9a091e04bf716a is the commit where I fix the problem. Could you take a look?

Sadly, this hang on a missing import is a know issue that I have not yet been able to successfully debug. A significant problem is that it only seems to appear in Mathlib I cannot reproduce it in smaller examples. There should probably be an issue tracking this bug. Someone coming up with MWE would also be great! The good news is that my focus for the end of this month is addressing the Lake issue backlog, so this is something I could spend more time on debugging.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ede775853cc9f271a9fcf1475dec887f82544e30).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ede775853cc9f271a9fcf1475dec887f82544e30).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Mac Malone it seems we're stuck now on a different lake problem here. (Commit 3cf3909884d6457a49762a1d5bd514cfdebf9814 of nightly-testing for reproducibility.)

The current behaviour is:

% git checkout nightly-testing
% rm -rf .lake
% lake exe cache get
% lake build --no-build     ### Fails with exit code 3
% lake build                ### Doesn't appear to do anything
% lake build --no-build     ### Succeeds

I'm not sure why lake build --no-build is failing here, but it breaks the cache verification step in Mathlib CI.

[Kim Morrison]

(lake -v doesn't give any further information here)

[Mac Malone]

@Kim Morrison If I undestand correctly, the last successful nightly-testing was Oct 14. Thus, no Lake changes have been merged since then, right? If so, that should help me debug, as this is then likely a Lake bug to some unforseen configuration and not mrely due to a recent code change.

[Kim Morrison]

Yes, that's right.

[Kim Morrison]

There was some upstreaming of code from Batteries to Lean in the last nightly, and consequently files deleting in Batteries. We know that is relevant for the "getting stuck" bug, but may also be relevant here?

[Kim Morrison]

We will need to merge lean-pr-testing-5732 tonight.

[Mac Malone]

@Kim Morrison lake build --no-build --no-ache similarly fails, so it feels to me like something from the lake exe cache is inconsistent with Lake. I am currently debugging it.

[Mac Malone]

I looks like it may be rebuilding proofwidgets. Has proofwidgets had a new release?

[Mac Malone]

Yeah, on my machine, it builds ProofWidgets (and then the things depending on it). It seems lake exe cache is borked.

[Mac Malone]

ProofWidgets will need a new release eventually due to lean4#5641 (which changes its traces). While mathlib is not using ProofWidget's releases directly, the problem may be that one of its trace files has not been properly replaced the mathlib's cache/CI.

Sadly, I still do not know what in particular is tripping things up. Perhaps making a new release will be the easist fix?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (054aa6cbdca97165c441575e81897f4c1012b7c3).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Okay, new releases of ProofWidgets (v0.0.43 using v4.13.0-rc1, and v0.0.44-pre using leanprover/lean4:nightly-2024-10-16) coming up.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (054aa6cbdca97165c441575e81897f4c1012b7c3).
You can git fetch; git checkout nightly-testing and push a fix.

[Mac Malone]

Yay! It appears the bugs have been solved. (The new failure is just about unused imports.)

[Kim Morrison]

Thanks for your help diagnosing that one, @Mac Malone!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b33faadf563e7b3d6b9578d89a7f04292fc0f86d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b33faadf563e7b3d6b9578d89a7f04292fc0f86d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (08804ac5cc5dca54e6979de8388f59c937b60e8a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

We will (probably??) need to merge lean-pr-testing-5697 tonight.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e553fb0852ed7000d6b34eb25bb6d9a83ee069c4)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9caf52848a187af346984fdd790422b60183b41f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c1d3ebd51a1725828121397ad4a8f36aba2f3a07).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Phew... we easily set a record of most lean-pr-testing-XXXX branches merged in a single nightly there.

[Kim Morrison]

Not quite done, however, something has broken in Mathlib.Order.KonigLemma, and I'm getting too sleepy to figure it out tonight.

A goal seems to have changed after just a have and a simp only, so I'm not quite sure what we've done to break it. Apologies ahead of time for which theorem statement I have presumably secretly changed under the hood!!

[Kim Morrison]

If anyone would like to take a look at that, much appreciated!

[Kim Morrison]

(Oh, perhaps I'll also ping @Peter Nelson as the original author of KonigLemma. Whatever the problem is here, it's certainly not your fault, just pinging in case you feel like doing some archaeology. The process here is to checkout nightly-testing, try to decipher what has gone wrong, and either fix it by pushing to the branch, or telling us we've done something stupid upstream.)

[Anne Baanen]

Looks like the issue was that Sigma.forall wasn't being applied to αs := (i : ℕ) × α i. So I added αs to the simp only calls and then they worked again.

[Kim Morrison]

That's ... weird, though?

[Kim Morrison]

oh

[Kim Morrison]

lean#5686

[Kim Morrison]

(and indeed, I forgot to merge lean-pr-testing-5686, which included the same fix!)

[Kim Morrison]

Thanks all.

[Kim Morrison]

Looking forward to Johan's automation which will prevent me forgetting about adaptation branches!

[Johan Commelin]

ci(.github/workflows): add discover-lean-pr-testing.yml #17399

waiting for review

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d51a8c9ac5f7970ce1d50207a52ff800aa95d956).
You can git fetch; git checkout nightly-testing and push a fix.

[Anne Baanen]

Just a shake error, let me fix it...

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (71802680628fbeb426c7a0c17107eeb67ac18fe0)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fb09b71265c60a58ebf2c1d4fd6b9477d4506d14).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (71802680628fbeb426c7a0c17107eeb67ac18fe0)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (319d7a37f0e813c9603b8df05901330e49aaf0eb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (71802680628fbeb426c7a0c17107eeb67ac18fe0)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9b16c5d7fb54a2f624ce50e9b4f9de1e2a26b963).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fd77f31972aa69d64ea2889b8d154417042e4aba).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (23752ee05683cc476abb6f9eb98b63c0eb5d3da1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (23752ee05683cc476abb6f9eb98b63c0eb5d3da1).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Mac Malone, the exit code 3 problem has returned. :-(

[Kim Morrison]

I can't make a new release of ProofWidgets for every nightly toolchain. :-(

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6c837c78f211be4560cf2b63adb5347e9854b808).
You can git fetch; git checkout nightly-testing and push a fix.

[Mac Malone]

Kim Morrison said:

I can't make a new release of ProofWidgets for every nightly toolchain. :-(

That's weird. You shouldn't need to. The Reservoir cache is the only thing I know of which uses the toolchain in its trace, but ProofWidgets doesn't use it (as it uses GitHub releases).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (94bb3a8e89c75b20472ec5a37df0f225cb08e003).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (df601e35b5257a5c391ee5ca5648201c4f46cc78).
You can git fetch; git checkout nightly-testing and push a fix.

[Mac Malone]

Kim Morrison said:

Mac Malone, the exit code 3 problem has returned. :-(

Which run produced this failure? I could not find that error in any of the recent links in this thread.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (de5d061f84a1fdff844f983aea367c3bdbf676b8).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

github mathlib4 bot said:

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (23752ee05683cc476abb6f9eb98b63c0eb5d3da1).
You can git fetch; git checkout nightly-testing and push a fix.

@Mac Malone, this is the one that failed with exit code 3. Indeed it has gone away again. However it does lot look it is a persistent intermittent problem at this point.

[Mac Malone]

@Kim Morrison Well that's even weirder. Nondeterministic trace mimsatches would be quite suprising. Maybe it is some form of network error? It might be worth appned --no-cache to lake build --no-build in that step just to ensure that is never causing the porblem.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6e38c6649191d8bf77deb739de42ae8df4581c0d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bd5ba6b8fd201d0165ca6068e0a9437a56c4b58f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (74600feef71163f17723cd491710cbe1cec142d7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (90c6be64b3540bf42afd057554434af4597f1367).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (90c6be64b3540bf42afd057554434af4597f1367).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (418a5eb7aec3fb639097cb13f74fc031ac4057f2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (66f63643834286e06540e60e459b22c7bbd25475).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (66f63643834286e06540e60e459b22c7bbd25475).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

There are some dubious fixes I just pushed on nightly-testing for lean#5650, in commit c2067f2d8656c8fa417133d981b027b99f47a227.

It's weekend here and I don't have time to think about it beyond getting it compiling right now, but we should revisit this, and see if we can make the API better.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (66f63643834286e06540e60e459b22c7bbd25475).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Kim Morrison said:

There are some dubious fixes I just pushed on nightly-testing for lean#5650, in commit c2067f2d8656c8fa417133d981b027b99f47a227.

It's weekend here and I don't have time to think about it beyond getting it compiling right now, but we should revisit this, and see if we can make the API better.

Oh my bad, I didn't see the Mathlib errors

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (407a4459e2005e212bb230d2746afe980eba7003)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (69bbcb4a9d48465ffcabd3ef9581cc9064df7e06).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (407a4459e2005e212bb230d2746afe980eba7003)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c8f7de855ad546b004a0ec1172f9c294105be0a4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a60b09cd54613409d215c944aebb2cf75991287c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (407a4459e2005e212bb230d2746afe980eba7003)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ff1b88672d4e66db5195c5c57684e4081fab209f).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Merging lean-pr-testing-5749 into Batteries, ProofWidgets, Mathlib

[Kim Morrison]

@Mac Malone, I just tagged v0.0.44-pre3 on ProofWidgets, than updated Mathlib's nightly-testing to use it.

This then results in:

% lake build
⚠ [91/5264] Ran proofwidgets:extraDep
warning: building from source; failed to fetch GitHub release (run with '-v' for details)

which will result in CI failing for being noisy. How do we make this not happen? :-(

[Kim Morrison]

I'm presuming this is some reservoir thing, where it needs to catch up with the tagged release somehow?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1df44a89ac2cd5c83c4b6ea19b2aa5ed3f99c479).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Oh, my mistake, the CI failed for the tag, it really was building from source. Sorry for the noise.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d43bc00b660d5456721455c8f4e4d1d2244f555b).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

import-graph needed a fix too

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d43bc00b660d5456721455c8f4e4d1d2244f555b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (26dafbb134ad1635c84c2c81363140e1ba78005e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d43bc00b660d5456721455c8f4e4d1d2244f555b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (26dafbb134ad1635c84c2c81363140e1ba78005e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c3f00b0c794c8e9d0f75cef11354d6efa9a8ceea).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c3f00b0c794c8e9d0f75cef11354d6efa9a8ceea).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Andrew Yang, any chance you could look at this failure in Morphisms/Constructors.lean on the branch nightly-testing?

[Kim Morrison]

It's from a PR of yours that landed a few hours ago.

[Kim Morrison]

It's fine to just push directly to nightly-testing.

[Andrew Yang]

Fixed.
Are syntaxes like this not supported anymore?

example {A B : Prop} (h : A → B) (a : A) : B := by
  refine by simpa using h ?_
  exact a

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (26dafbb134ad1635c84c2c81363140e1ba78005e)

[Johan Commelin]

I would hope they still are...?

[Markus Himmel]

This looks like unintended breakage after lean#5648, which is supported by the fact that nightly-2024-10-09 is the first nightly where this doesn't work anymore. cc @Kyle Miller

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (26dafbb134ad1635c84c2c81363140e1ba78005e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (07013722cda97276225650bec2a9635f95807ed6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5d9876da9e139761f55a9d3bba56cbd11fe5ecf4)

[Kyle Miller]

@Andrew Yang That's never supposed to have been supported — it was a bug that the ?_ could escape from its enclosing by.

That said, I think it's a good idea having a refine version of simpa. Maybe simp_refine h ?_ would be good syntax?

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5d9876da9e139761f55a9d3bba56cbd11fe5ecf4)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (3ed0adc8f4c5f3c0b1cdd195e1c16c0e6fae8e8c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (893b3a846645d48ac45143ec02149cc551acd99d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (893b3a846645d48ac45143ec02149cc551acd99d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (3307c67acbea9ff66f3a40e0c876b4af694000ab)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f72cbf5998335b7b2863a003a2ce58c11e982418).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8fd75accaff95050c8b594847f537bdde54a54ef).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0b6c6c4d8f70155aae4dc62d24758734babe479a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (3307c67acbea9ff66f3a40e0c876b4af694000ab)

[Kim Morrison]

I also merged lean-pr-testing-5788 in, which had some non-breaking cleanup from lean#5788

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9dda7f5db42f6c0e303ca618e1b21995ac435f2f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (3307c67acbea9ff66f3a40e0c876b4af694000ab)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5b391bd6a2dafc56a16caeef82eb19c1c1518104)

[Kyle Miller]

(deleted, followed up on my note)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5b391bd6a2dafc56a16caeef82eb19c1c1518104)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e91cdbcf5a387801a6225b41b0056c63206a9f7f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e91cdbcf5a387801a6225b41b0056c63206a9f7f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fd050c2d54938c9a9b5b827fee930496295b1b0d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bf23ca5445dd7509615c489b06dbfc93546c1276).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (991921d3bd6203a88526aed794553b0ba2350735).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

https://github.com/leanprover/lean4-cli/pull/19 will fix this failure

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (824887828166406874a8ef38feefc05597c91a80).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e0bd65eedfa4ffe9616fd33085402c213c4cb01f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f4ae1ea6c6f6511fec1a5d5f35a433ca2c977592).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (89bb4c76891eeef01b806d7dcfe3f19346ec3c0d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1a0cb23be5d4c6eae78ac6ac9ae8f365b1b1b2d6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6264905204f3ed595bc99032ec15af1910a0eddd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f0c67a9c1b8352739a65e8438f218cb11278ab12).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (380f469e41f87c305b0706bc38dc1b785603e481).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (be300cdc068254562106cb8ab789da120de5acf2)

[Kyle Miller]

I just put lean4#5853 on the merge queue. This breaks mathlib, but the only thing that should need doing is to bump aesop, which has already been fixed.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (be300cdc068254562106cb8ab789da120de5acf2)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9fc60c1ad982f142d6d0671bef8f4cda3b1590cd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (38a786e886cee8d56c2bdf03fa56b925828fa7b7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f381acde43bf099c306f588941df4014ea3ecfcf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (347ad1b741a37bbe745a46cd0d0ff06aa4f80965)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (73c9a6385f7abed888796762e8d6cc0877e6a267).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (afa7411cbae5122045f191b6e2b9d7f7e799fce5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4e5fa6379d912f52eb8a4bacac4dd9eb0c75fca3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1d847d8cc0ca7c2e574a4a4ac22ba1b8607aea94).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

This last failure is puzzling. It's a simp [forall_swap] that's started to reach max recursion steps (commit with fix: https://github.com/leanprover-community/mathlib4/commit/08c4816adebb4419e3e5f51aa27fe90d55f8afe7)

I'm not sure why it would suddenly start to fail. There don't seem to be any Lean changes that would have triggered it...

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1d847d8cc0ca7c2e574a4a4ac22ba1b8607aea94).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ef637a3d76ee66c95ffd58ad10a8231e91744115).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3e82c092e760d870aa677ac508c210e28b715fa9).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

Kyle Miller said:

This last failure is puzzling. It's a simp [forall_swap] that's started to reach max recursion steps (commit with fix: https://github.com/leanprover-community/mathlib4/commit/08c4816adebb4419e3e5f51aa27fe90d55f8afe7)

I'm not sure why it would suddenly start to fail. There don't seem to be any Lean changes that would have triggered it...

I worked around it on #18333 by changing to simp; tauto

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5a7979109839909b50de2d135fb1f39c3dacebf5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fe4820c926372190e01f6404c555c1ad2f0cf7e0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d27f22898a74975360dd1387155c6031b501a90b).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Merged lean-pr-testing-5719

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6c2c697b464663f1ed09ade11e0204970ddd95aa).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dfbe436509d43c243ecce8dac9782f7f5632c239).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f4f0b47a2f859d27e965c812344deb1435fe8d48).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5724fc0c3e05bb9d503aea86f8513a3696e595f3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c8dae00520db0c6b41b68a7a26af9527e8db4f6c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d77087c5820546f8f47eaffe2c13f16df19dd47d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c96009ebab6853de093abfa12ccae9601bfc6ec8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4478d113e456c870c14d99246808b74783756287)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (153aff575c32e0e84efb0b470bdf6cec96a6c29e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (250bf30b823d812379be4b3b5fe134edbc6ea8cc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (250bf30b823d812379be4b3b5fe134edbc6ea8cc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (19a2e289f248500411b87004e36f407e44c4c010)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2bf9cc643615d0e50a7db023ec645a0340f2e4dc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (19a2e289f248500411b87004e36f407e44c4c010)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (348232e527e0363cd27a7a49302dad2de3817be6).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Merged Kyle's lean-pr-testing-5883 here and at Batteries

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (0af7fdf367d4a47093030a029e183fc2530cede4)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (318cb7184d6e13f32a69869057dab5bcfe652f0d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (50373971524c5c08b75a06665756d44fd30ac05a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (50373971524c5c08b75a06665756d44fd30ac05a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Merging Kyle's lean-pr-testing-5898 into batteries/aesop/mathlib's nightly-testing branches.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (50373971524c5c08b75a06665756d44fd30ac05a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Oof, now plausible needs updating for nightlies. :-)

[Kim Morrison]

Hopefully all good now, local build is past all the dependencies / meta code.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c68aa1080b4c5bc32adfb1fe9cb3f161cf5b13d8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (743d65a7ce14876af9021b7af600a1946a6b431d).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

It seems to be just that there was a lingering Slimcheck file (deleted it)

[Kyle Miller]

It seems like the file came back from the dead because List.modifyNth became List.modify (commit), and it wanted to be around to see that happen.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (55da1f83fea32853a6da79f84316361e646fc365)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (df174a8a32fb9b7661ec4faa48a6a6a6bb4cf0d5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (21d62a67f9e364212415055c3138bf879c771b20).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c46b5e46c884d1448ba12aa9bdc04f71cc295cbc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2c07a25e93dddd2ad980b28ea52881242dccbf90).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2fc69c7f2cf8a673b129d21c537c69c4d48cb774).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ef5ff126f83dceb492b40f3b30c19cc071eac163)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (022e83a3574b2369be549178ef7a785b7c716f51)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3a51a909fe294510e91d071384eeef5e7344bef9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (022e83a3574b2369be549178ef7a785b7c716f51)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fef6aa3e68311f7ddb82e3db00441493b0e6f39a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a7fc949f1b05c2a01e01c027fd9f480496a1253e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cff2508ca636dcec162d11f5c0394f1705753a38).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

(I also made a new branch for nightly-testing here and at Batteries. The histories are still preserved via the nightly-testing-YYYY-MM-DD tags.)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6e98b4c07c04bcff5170ffd7adef179d951dbb0b).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

@Kim Morrison Sorry, what do you mean by that exactly? You created a new bump/v15 branch? Or you deleted and recreated nightly-testing? Or did a hard reset to branch it off master again?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (15f99d44becdf94acbc9f295f44b8f267b508a2c).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I deleted and recreated nightly-testing.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (15f99d44becdf94acbc9f295f44b8f267b508a2c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b28f0d7f7e9cc3949a9a3556a6b36513f37f690d)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0317a26931dd41612066dc1c8c91a8273673e2f4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ddff18e6d123171cc1d13d35fc0f2a062ebdcd48).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2f5cf5f572ab008ffe1ffad76ede50ef47df4df5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b28f0d7f7e9cc3949a9a3556a6b36513f37f690d)

[Kim Morrison]

We need to merge lean-pr-testing-5684 tonight.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8bad983b8e4adf7e111ef16e32e757bb95ef63e3).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Fixed by #18638, which I've pre-emptively merged into nightly-testing.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b28f0d7f7e9cc3949a9a3556a6b36513f37f690d)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (84343c902b917981ea5c2146ce0074c09c338984).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d08f234e81a8adb77a5df040dda32092d8964715).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c5adc80d438877328f3307b59a66357d9b1f95b3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (66e27ecedabdda28d551ab10b40fbbdaedcba63a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (97f7ee9b324296da144822b21fb35c2fce16bbbc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9df8b6aac62ef81b72e7ff026ffb3dd7ea81371d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9df8b6aac62ef81b72e7ff026ffb3dd7ea81371d).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Mac Malone, again we have lake build --no-build failing with exit code 3. This has persisted across several commits to nightly-testing. Could you please take a look?

[Damiano Testa]

Yesterday I had a PR which restored the CI step that would skip looking for all the cache if the cache for Mathlib.Init was not available. Should this step be reverted again?

[Damiano Testa]

#18715 is the merged PR.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (48b340091dc38c6be2696ba59b63bc4f1cd86d24).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

As far as I understand, this problem is orthogonal to the fast-failing cache check.

[Damiano Testa]

Ok, good to know. I simply flagged it, since the restored CI step uses --no-build.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (682fb6e943f5985f9e7b3fc6681c3706fba888d8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (31c320e6adec695a8c070a78bb956e0fc5401431).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fd877e3244c9fc6f620484aa36b581ac20811878).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (efb737da256e54a73006dbac848020821143eff8).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Damiano Testa said:

Ok, good to know. I simply flagged it, since the restored CI step uses --no-build.

Oh, I see, then I'm wrong, and the restored CI step is revealing the bug in Lake.

[Damiano Testa]

Ok, sorry for re-introducing the issue. It is a little puzzling (to me) that this is affecting nightly-testing, but no one reported problems on mathlib.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (efb737da256e54a73006dbac848020821143eff8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (905613ccc46988d1431e544d83158227cb015790).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5476cef777111bb7a13cd11b7ba78b24fdb2d04f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5476cef777111bb7a13cd11b7ba78b24fdb2d04f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (42ff2ccb6d99b39a65e43b8da21a60f8e7d3f9ca).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7fc8954db7c3e9619b2055e97afeda277df11e5a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (62a2cc31bac6416736c17a57383a622c208f21cb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (16c9d8c2fba7254dbeb6e41eeb0554c23e5776ec).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1964227ee4bc4a748a0fd3b7538fb3624bd53cdf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b696b3524d2dde1068fa8192e92f25c990e9eb15).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dcd0c54029474826f732df2e67dad6f62d036801).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b17bf258da6542cd3a553ea33c03db938506ae92).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (984b731629ca16feec9631b2fe29c3f8119d2545).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (db9c4895583aedbcffefebb9a1396e49dd353076)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9e22d44c80076d35898385cbd9b7603b9ad578b1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (db9c4895583aedbcffefebb9a1396e49dd353076)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8fa662232f9bac9afad1064b6807f885ecb42a6b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5c97de1d46f7ea0dcaabd3689510f84926715b67).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (46252974983857475e0005be6539778f72aa506a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (3894c72cbd6f4baba45c79678e75503123a51756)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ba0f793af59c9d09b2590bb84bed18e0c953598d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7f8c9accc0593e2d7adfe688ba65214abd9f44b4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9b0171e1b8e46b017a2622acbb69a741228c5a9f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (25a6e587b921c3b70390d43d3e304d0a9e44e480).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (33a52a30ef58e82cba9f316ddad5fc903c45b30d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (69fd87072626b8778f5553717c4f0f9646ce9664).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (3894c72cbd6f4baba45c79678e75503123a51756)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6e5c57744c0c760f11f5a74683da6c6ff1e73816).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (62c60f4c54985095037900d549069c5afa055b9f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (62c60f4c54985095037900d549069c5afa055b9f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (62c60f4c54985095037900d549069c5afa055b9f).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Merged lean-pr-testing-5988 here and on Aesop's nightly-testing.

[Kim Morrison]

Merged lean-pr-testing-5920

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (92699559c4c13dd39c2fa73633c20bf5da322a19).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (601e532385c74a1527c61fce3042634418c09171).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b00c9dba4d70ab0ba583936391d41c5d5df86681).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (15ae5b0cba066b5763f837b84afa57cce9a600c7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (66f0c7ed474d768e06dd41e9c30783069aefb1ef).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (6c3ffb61f93289ca8959e436efe546e7d3465f78)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (aafab103590f19e7d5dc03f376a4622a8c5249e7).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

We'll need to merge lean-pr-testing-6054 at Batteries, Aesop, and Mathlib tonight.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (aafab103590f19e7d5dc03f376a4622a8c5249e7).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

We're waiting on me getting #18947 in.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ce14f6c28d27d389898dc60307f76ca511001b31).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5b7d4f674417bd4f778070920a6e206c08142eab).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0a4bd52842b793900a2d13769c73f41c9cd6ed79).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c2ac85e66c4afd79b177c6e4dd6c4a801a97c435).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a98955eeb755f7c066f31e9e4d896b90c4d83b31).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Separately from the linter problems we're having at the moment, nightly-testing is failing in Mathlib/AlgebraicGeometry/Spec.lean.

If either @Andrew Yang or @Jujian Zhang (recently touching the relevant declaration! :-) might have a chance to take a look that would be much appreciated.

[Andrew Yang]

I'm not sure what's the best way to solve the missing IsLocalHom instance. Can @Jiang Jiedong please take a look? Thanks!

[Kim Morrison]

Oh -- this is probably fallout from Kyle's bug fix PR. I didn't merge all of his changes yet.

[Kim Morrison]

Not at a computer, but maybe trying to merge in lean-pr-testing-6204??

[Kim Morrison]

Sorry, 6024.

[Jiang Jiedong]

I fixed the error by filling an underline with explicit argument. Shall I commit directly to this branch?

[Jiang Jiedong]

I have just pushed my fixing commit

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3597f15bb5cd3e841064f98286c5549b22818a99).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1cf210c363adf58a21a13e28695c1c3989ff1869).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9b99f4d538e246c7205bcb081030d98eaa81ab47).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (798302c55eff0d7f2543f7540e8cdb205efbc48c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b9e10907eb01edd5d7c088a0e7aa9164f28e0dae).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (00a090b2e31c5b97ac9b6aa8b49d6e6319b74c6b).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Just getting back to this now. The simpNF linter is thoroughly broken, and reports Left-hand side does not simplify, when using the simp lemma on itself. on essentially everything.

[Kim Morrison]

This is not unexpected: we just changed the interface for calling into the simplifier from meta code. Presumably I've made a mistake in adapting to this interface change.

[Kim Morrison]

But so far I am not seeing it. :-(

[Kim Morrison]

Should come good shortly.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (749157dda17c2c89da84d1dec01607893379fb73).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Sigh, these appear to be genuine linter failures.

[Kim Morrison]

Nope, more mistakes in me updating tactics.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (bae40f51101fe0dbebff6d6a5f56532ca845f1f4)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4ac7881bba2522f56411a175689efe7039731fb9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (bae40f51101fe0dbebff6d6a5f56532ca845f1f4)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a5a981b8ba66b70614f0e096595389e7a46d17c5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (334be41cd6a4737ac24813c926c6f61fcedd1998).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

The recently added file Mathlib/FieldTheory/Relrank.lean (mathlib4#14987) almost goes over the synthInstance.maxHeartbeats limit on master, and goes over on nightly-testing. I've had to add five copies of

set_option synthInstance.maxHeartbeats 400000 in

in this file on nightly-testing.

[Kim Morrison]

Just pinging @Jz Pan, @Andrew Yang, @Johan Commelin, who authored/reviewed the PR in case any are available to take a look at this and see if anything can be done.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (334be41cd6a4737ac24813c926c6f61fcedd1998).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Just a heads up @Mac Malone that nightly-testing at b0a9ae37ac9cfaf7f106c8c88253e09beab56c34 gets stuck at

% lake build
⣿ [?/?] Computing build jobs

As usual, this is probably because I've deleted a file in Batteries; although this time Mathlib itself doesn't import the deleted file. I'll go look through the intermediate repos to see if they use it.

[Kim Morrison]

Indeed, import-graph used the deleted file. Once I remove those imports from import-graph, and run lake update importGraph in Mathlib, the build starts properly.

[Kim Morrison]

So perhaps this is a clue about reproducing the problem -- we need a chain of three projects?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (334be41cd6a4737ac24813c926c6f61fcedd1998).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e3d7d7f053ea862ffb7d1613eff6de0f2e3e8e14).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Some more fallout from lean#6024

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4bd54c44efaeb057176edd9431ce5c38ab0f41db).
You can git fetch; git checkout nightly-testing and push a fix.

[Jannis Limperg]

Kim Morrison said:

This is not unexpected: we just changed the interface for calling into the simplifier from meta code. Presumably I've made a mistake in adapting to this interface change.

Could you point me to this change? Might be relevant for Aesop as well.

[Kim Morrison]

@Jannis Limperg, the aesop changes are on https://github.com/leanprover-community/aesop/commit/1aab79ccb4119e27c123d8e237af34097d865187

[Kim Morrison]

(this is already present in Aesop's nightly-testing branch)

[Kim Morrison]

lean#6054

[Jannis Limperg]

Ah great, thanks!

[Kim Morrison]

(Haven't run lake test on Aesop's nightly-testing branch recently; that might not hurt! :-)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4bd54c44efaeb057176edd9431ce5c38ab0f41db).
You can git fetch; git checkout nightly-testing and push a fix.

[Jannis Limperg]

Kim Morrison said:

(Haven't run lake test on Aesop's nightly-testing branch recently; that might not hurt! :-)

You're braver than I, but lake test succeeds on nightly-testing. :tada:

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fd92bc36215a9632f15c6482fb0132d24e6c49ab).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (95ee83bc7ead3af5cf774c227781aa79c01d9b02).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2ee23a34530f8024d3c41b837aca27f979aa129e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (daed990be85bb8fa9ad519b2c3249146f6ca11b7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5d03a2cd14f5dbfd233359a68d31fd12ad9a535e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3805203e1e80948a62f00d3c3923bd8b31f16533).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (15661bfd114cd662e6db347d7869fe509a5f5333).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (089baee31dfe119a919641184bea4b0d0401c30b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f9aff52fa3e370883f017c09cfc12be23edae5c5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4887c6cd78f40a84bf1f1597c9fe79028968efdc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (290eb3b99a6390afda429a510a0dd7ae2b52b65e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (22b5743395628f2dc74e4acdbbe3856b03053722).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (46215793fb6b682b6eeae1960e3266f0aadd5794).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bc7827342b0d7a3025f4a34100174550c59c4ca1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6270f3467257beb5cf5118e21a98a0734356657e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7b8edbb98887af54a4cb8e8f76fa279960233c22).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2aeb15532ae2dcb0c4119ce6e5e5825811af14f1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fe4de19cc7609bc70565b7a712202dc78ee54336).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e3327a6356ba7550fa37b50f16e934a4d59dc6af).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e3327a6356ba7550fa37b50f16e934a4d59dc6af).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (59e75948eb18b0946b93c99d666844ca885675c6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (59e75948eb18b0946b93c99d666844ca885675c6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (59e75948eb18b0946b93c99d666844ca885675c6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (59e75948eb18b0946b93c99d666844ca885675c6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (59e75948eb18b0946b93c99d666844ca885675c6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (89e8f886145b9fbd4543ff7b8e1f0cf39a4e009c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (08ac4589995d198221a35f21c83467aba483fb3a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (38affacc35abeefc7fd0c782d547d6b745281ad7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (38affacc35abeefc7fd0c782d547d6b745281ad7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (89e8f886145b9fbd4543ff7b8e1f0cf39a4e009c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d2568da6e252a1bb378b585d39dcf12dd814f946).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6d297a4172e6c37d3bf82e68924c45d72621ac5d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6d297a4172e6c37d3bf82e68924c45d72621ac5d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (66df24a8e2b60b44dbe1def58ad03a083b80e865).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2c6450e45a0b2b45662a8289c3d0fbf09883939f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b04165d049454c0676bf3fa5e3633555af887f6e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2ff73d5985b6084b9a7b3f402b90de35951c3e1c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (654802e5ec7c62e0cf1f45dfbdaa746af1b81967).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (436211744e3cfc6ceefe33edf3f22adf4fce6aff).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (812897a4585e90015527a14b09bd40d68c996be7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (971d01d592ff5787e284ab48d59340f1715ad2d6)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (812897a4585e90015527a14b09bd40d68c996be7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (971d01d592ff5787e284ab48d59340f1715ad2d6)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (60a189e5bc5c59e67faa3f3445229e76298ce4dc)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (29f545b8110e796db8de688fa9e3950ce95cf678).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (60a189e5bc5c59e67faa3f3445229e76298ce4dc)

[Kim Morrison]

I was about to say "wow, a day without breakages", except that it is the nightly itself that broke. :-)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cd4d2185e67b7387e303150dab86521007c56fb6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cd4d2185e67b7387e303150dab86521007c56fb6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cd4d2185e67b7387e303150dab86521007c56fb6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (92f63d5c1988987aa375830b9b41cbfd269c3625).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8e0d70c35dcdbe42cd6fa06c579a118735380526).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (961ee9dbff2b14a178fa757f097b5bb27c274e99).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I think #19204 still didn't run today, @Johan Commelin, could you check the error log?

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (33e7503de887ec81d3b24de62cfce9440ffa55a8)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (50c8065ea373f936358889d6eae523a8fde8ae34).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

@Kim Morrison I configured the workflow to only run when lean-toolchain changes. And the last time that happened, we still had the old workflow file.

[Johan Commelin]

But it's good that I realize this now. Because it means we shouldn't just use the latest two nightly tags.

[Johan Commelin]

@Kim Morrison #19316 should improve two things:

• actually determine the two nightlies that were used on nightly-testing before and after bumping
• actually fetch all the history between those two

[Kim Morrison]

actionlint points out a syntactical problem, otherwise :peace_sign:

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab49b8360a2fb3a08e63cf0c0bc344d4827eeb53).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab49b8360a2fb3a08e63cf0c0bc344d4827eeb53).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1e5f38b9c9889a1375c1007ac707aa325c895a18).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8ce05c99ea86bd5531e5a84a45f04cefa20df502)

[Johan Commelin]

@Kim Morrison Guess what... passing around multiline strings vs $GITHUB_OUTPUT needs a different strategy: #19355

[Johan Commelin]

I really hope people 10 years from now will look back in horror upon our "how to write and test CI workflow" workflows.

[Johan Commelin]

Because if they don't, it means that our current workflows will have become normal

[Kim Morrison]

It will all be written in Lean, and verified (via AI, silently unless something is wrong) against a formal model of the CI environment. Right???

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/lean-pr-testing-6128

[Johan Commelin]

Does that look mildly correct?

[Kim Morrison]

Let me go check. :-)

[Johan Commelin]

Most importantly: I'm about to leave my computer, and this action now runs on every push to nightly-testing. If that becomes annoying, please partially revert #19355, so that it only runs when lean-toolchain changes.

[Johan Commelin]

Also, I guess we should linkify the output.

[Johan Commelin]

But now I need to run

[Kim Morrison]

No, I think it is wrong, and we merged that one already yesterday.

[Kim Morrison]

But what's an off by one error. :-)

[Johan Commelin]

https://github.com/leanprover-community/mathlib4/actions/runs/11967694089/job/33365313381#step:5:35 also shows that we should expect more than 1 PR to be posted

[Johan Commelin]

Ghaaarhg, anyway, this was progress

[Johan Commelin]

Now I'm really gone for real until +3hrs

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8ce05c99ea86bd5531e5a84a45f04cefa20df502)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2bb0410843932d03ff2c12cd9bf2e996f514a36b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[Damiano Testa]

Would it be better to print the branches on separate lines? Maybe even printing lines of the form

git merge origin/adomani/bench_update
git merge origin/ci-update-checkout
git merge origin/eric-wieser/fix-update_dependencies-errors
...

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8e3e89e9b3c5b0a719dea497f46946c860381031).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

In fact, the correct branch to be merging right now is lean-pr-testing-6139. :-)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-PrincipalIdealDomain-docs origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0c44f3226511eec8ec0fbef477cc35921fe0fa2d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-PrincipalIdealDomain-docs origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0c44f3226511eec8ec0fbef477cc35921fe0fa2d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-PrincipalIdealDomain-docs origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (be959a9ade921f874584eb5761e7c4f6c82f6651).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-PrincipalIdealDomain-docs origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3d401e0bb3b0295605d8083d5683efd6dbbea2eb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-PrincipalIdealDomain-docs origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-PrincipalIdealDomain-docs origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (714674cc3646c9d15485e7cf26fb8c1b22655a64)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-PrincipalIdealDomain-docs origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (714674cc3646c9d15485e7cf26fb8c1b22655a64)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-PrincipalIdealDomain-docs origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (714674cc3646c9d15485e7cf26fb8c1b22655a64)

[Johan Commelin]

#19392 does better tracing and better output formatting of the list of PRs.
I hope the better tracing will allow me to understand why we are matching branch names that do not even contain digits.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6139 origin/mrb/updates origin/tfae-block-syntax-update origin/update-PrincipalIdealDomain-docs origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (714674cc3646c9d15485e7cf26fb8c1b22655a64)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

origin/adomani/bench_update origin/ci-update-checkout origin/eric-wieser/fix-update_dependencies-errors origin/lean-pr-testing-6125 origin/mrb/updates origin/tfae-block-syntax-update origin/update-PrincipalIdealDomain-docs origin/update-dependencies-2024-06-26-03-06 origin/update-dependencies-2024-06-26-04-06 origin/update-dependencies-bot-use-only origin/update-import-script

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ba61bf3e0b903f7186a3861a6cf1d704a1bed7c0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

\n- origin/adomani/bench_update\n- origin/ci-update-checkout\n- origin/eric-wieser/fix-update_dependencies-errors\n- origin/lean-pr-testing-6125\n- origin/mrb/updates\n- origin/tfae-block-syntax-update\n- origin/update-PrincipalIdealDomain-docs\n- origin/update-dependencies-2024-06-26-03-06\n- origin/update-dependencies-2024-06-26-04-06\n- origin/update-import-script

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

\n- origin/adomani/bench_update\n- origin/ci-update-checkout\n- origin/eric-wieser/fix-update_dependencies-errors\n- origin/lean-pr-testing-6125\n- origin/mrb/updates\n- origin/tfae-block-syntax-update\n- origin/update-PrincipalIdealDomain-docs\n- origin/update-dependencies-2024-06-26-03-06\n- origin/update-dependencies-2024-06-26-04-06\n- origin/update-import-script

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d1d52a625399fe9f91ef60a29818f4005053e70c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

\n- origin/adomani/bench_update\n- origin/ci-update-checkout\n- origin/eric-wieser/fix-update_dependencies-errors\n- origin/lean-pr-testing-6125\n- origin/mrb/updates\n- origin/tfae-block-syntax-update\n- origin/update-PrincipalIdealDomain-docs\n- origin/update-dependencies-2024-06-26-03-06\n- origin/update-dependencies-2024-06-26-04-06\n- origin/update-dependencies-bot-use-only\n- origin/update-import-script

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d1f4f68c3cd7162e8b86e5ae3a27eb0250fb8095)

[Johan Commelin]

Aahrg, why is escaping so hard.

[Ruben Van de Velde]

Because you're writing shell code :)

[Johan Commelin]

#19405 filters out stage0 updates from the lean4 commit log, since those are not made by PRs.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

\n- origin/adomani/bench_update\n- origin/ci-update-checkout\n- origin/eric-wieser/fix-update_dependencies-errors\n- origin/lean-pr-testing-6125\n- origin/mrb/updates\n- origin/tfae-block-syntax-update\n- origin/update-PrincipalIdealDomain-docs\n- origin/update-dependencies-2024-06-26-03-06\n- origin/update-dependencies-2024-06-26-04-06\n- origin/update-dependencies-bot-use-only\n- origin/update-import-script

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d1f4f68c3cd7162e8b86e5ae3a27eb0250fb8095)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

\n- origin/adomani/bench_update\n- origin/ci-update-checkout\n- origin/eric-wieser/fix-update_dependencies-errors\n- origin/lean-pr-testing-6125\n- origin/mrb/updates\n- origin/tfae-block-syntax-update\n- origin/update-dependencies-2024-06-26-03-06\n- origin/update-dependencies-2024-06-26-04-06\n- origin/update-dependencies-bot-use-only\n- origin/update-import-script

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d1f4f68c3cd7162e8b86e5ae3a27eb0250fb8095)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

\n- origin/adomani/bench_update\n- origin/ci-update-checkout\n- origin/eric-wieser/fix-update_dependencies-errors\n- origin/lean-pr-testing-6125\n- origin/mrb/updates\n- origin/tfae-block-syntax-update\n- origin/update-dependencies-2024-06-26-03-06\n- origin/update-dependencies-2024-06-26-04-06\n- origin/update-dependencies-bot-use-only\n- origin/update-import-script

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d1f4f68c3cd7162e8b86e5ae3a27eb0250fb8095)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

\n- origin/adomani/bench_update\n- origin/ci-update-checkout\n- origin/eric-wieser/fix-update_dependencies-errors\n- origin/lean-pr-testing-6125\n- origin/mrb/updates\n- origin/tfae-block-syntax-update\n- origin/update-dependencies-2024-06-26-03-06\n- origin/update-dependencies-2024-06-26-04-06\n- origin/update-dependencies-bot-use-only\n- origin/update-import-script

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d1f4f68c3cd7162e8b86e5ae3a27eb0250fb8095)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

\n- origin/adomani/bench_update\n- origin/ci-update-checkout\n- origin/eric-wieser/fix-update_dependencies-errors\n- origin/lean-pr-testing-6125\n- origin/mrb/updates\n- origin/tfae-block-syntax-update\n- origin/update-dependencies-2024-06-26-03-06\n- origin/update-dependencies-2024-06-26-04-06\n- origin/update-dependencies-bot-use-only\n- origin/update-import-script

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d1f4f68c3cd7162e8b86e5ae3a27eb0250fb8095)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

\n- origin/adomani/bench_update\n- origin/ci-update-checkout\n- origin/eric-wieser/fix-update_dependencies-errors\n- origin/lean-pr-testing-6125\n- origin/mrb/updates\n- origin/tfae-block-syntax-update\n- origin/update-dependencies-2024-06-26-03-06\n- origin/update-dependencies-2024-06-26-04-06\n- origin/update-dependencies-bot-use-only\n- origin/update-import-script\n- origin/update_deprecations

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d1f4f68c3cd7162e8b86e5ae3a27eb0250fb8095)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

\n- origin/adomani/bench_update\n- origin/ci-update-checkout\n- origin/eric-wieser/fix-update_dependencies-errors\n- origin/lean-pr-testing-6125\n- origin/mrb/updates\n- origin/tfae-block-syntax-update\n- origin/update-dependencies-2024-06-26-03-06\n- origin/update-dependencies-2024-06-26-04-06\n- origin/update-dependencies-bot-use-only\n- origin/update-import-script\n- origin/update_deprecations

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (db0487a4dbe7caa9f45514455f4edddbc56d0505)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• origin/lean-pr-testing-6194

[Kim Morrison]

The formatting is correct!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a41d8f43ee87309b9bb3c4f23c473a5fcbc2e922).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

and lean#6194 was merged today, and lean-pr-testing-6194 has adaptations on it. Looks great!

[Johan Commelin]

@Kim Morrison Shall I switch back to running the workflow only when lean-toolchain is touched?
Because atm it runs on every push to nightly-testing.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• origin/lean-pr-testing-6194

[Kim Morrison]

Yes please. :-)

[Kim Morrison]

I've now merged lean-pr-testing-6194 into both batteries and mathlib's nightly-testing.

[Kim Morrison]

There are still errors, because I merged lean#6195 without fixing Mathlib. (i.e. the bot is correctly not mentioning that!)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a41d8f43ee87309b9bb3c4f23c473a5fcbc2e922).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

@Kim Morrison @Damiano Testa voila: #19450

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• origin/lean-pr-testing-6194

[Johan Commelin]

I'm really happy that the formatting was fixed here. Kudos to @Damiano Testa !

[Damiano Testa]

I don't know why formatting is so hard: it feels like there would be nothing special to it, and yet...

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a41d8f43ee87309b9bb3c4f23c473a5fcbc2e922).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5fde9dcf705fe1d732a15da3dda14a624a95237f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b96544419e0739c6aefecfc4ee368400a77266ce).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7f28d7f73f74b31f72449bb9eb240db3ca68fe38).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (04cd3d0afc11a0bcb07934a8e2f12a72793b2f28).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3646342693db92ccb97e120635ea7d068d60e738).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (69eeb7456e3ae4dbacb7ea34191d938acb9275e7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6e1b417164a9b2dba4c7f38925e8b4ba4c22e7f1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6e1b417164a9b2dba4c7f38925e8b4ba4c22e7f1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6e1b417164a9b2dba4c7f38925e8b4ba4c22e7f1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (dbb613fb80683eeae413deddb3ad5189b7c3ba81)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b58a55482b9cbe092750d326c261e04667ef0c04).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• origin/lean-pr-testing-6189

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a2a544ab0cc7d3e1d2a07cda2e9dedef8dbe0749).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (83238e24b9113e84b6e4a66801a7dc8c4e9c8320).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Just merged lean-pr-testing-6189, per instructions.

[Kim Morrison]

I guess we need a script to assist merging these branches. I think the steps are:

1. git fetch
2. git merge origin/lean-pr-testing-NNNN
3. Resolve conflicts in lean-toolchain, lakefile.lean, and lake-manifest.json in favour of current version.
4. Replace all strings lean-pr-testing-NNNN in lakefile.lean with nightly-testing.
5. Run lake update
6. If there are no further conflicts, git commit -am "merge lean-pr-testing-NNNN" and exit code 0.
7. Otherwise show the output of git status and exit code 1.

Does that sound right?

[Kim Morrison]

Also -- it would be great if the script that posts these messages could linkify them a bit. Both a link to the original Lean PR (for context) and a link to the diff in the branch would be very helpful.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a10eba97bbf9fccde39aaa51c640a0716513b627)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5ad34c033417c6e6efd3fcd9062fa1764d240209).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e6b14d47d78f3846fbf3c5d50bb1eccd71abc6e5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (19094c4d59858e7ff3ef353faebf2e5bd009dacb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b25c29685772c4e73f377e6746ed44c2d3d29907).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (21af8545cb9daf04f22cddc30a99fd7dbbf3543b).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Heather Macbeth, just a heads up that I just increased 1100 to 1200 on nightly-testing in:

/- When `linear_combination` is used to prove inequalities, its speed is very sensitive to how much
typeclass inference is demanded by the lemmas it orchestrates.  This example took 2146 heartbeats
(and 73 ms on a good laptop) on an implementation with "minimal" typeclasses everywhere, e.g. lots of
`CovariantClass`/`ContravariantClass`, and takes 206 heartbeats (10 ms on a good laptop) on the
implementation at the time of joining Mathlib (November 2024). -/
set_option maxHeartbeats 1200 in
example {a b : ℝ} (h : a < b) : 0 < b - a := by
  linear_combination (norm := skip) h
  exact test_sorry

[Kim Morrison]

Do you want to investigate? :-)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a10eba97bbf9fccde39aaa51c640a0716513b627)

[Heather Macbeth]

@Kim Morrison That test has been pretty weird -- as you can see the actual heartbeat count was 206 heartbeats, but it wouldn't pass CI without upping the limit to 1000 heartbeats (and apparently subsequently to 1200). If you have the branch checked out, could you run count_heartbeats to see whether the actual heartbeat count has increased?

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a10eba97bbf9fccde39aaa51c640a0716513b627)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• origin/lean-pr-testing-6112
• origin/lean-pr-testing-6200
• origin/lean-pr-testing-6220

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8a7a0b7d493c44f352e65718307fce1c052d20e2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7e86316a6a2b02c4957950b7ee550b17506485f5).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

I'm working on a script as outlined by Kim Morrison

[Johan Commelin]

Will test it on the PRs above.

[Kim Morrison]

One subtlety here is that often we need to merge some subset of these on batteries as well...

[Johan Commelin]

• 6200 merged with script

[Johan Commelin]

• 6220 merged with script

[Johan Commelin]

6112 has nontrivial conflicts.

[Kim Morrison]

That actually sounds right!

[Kim Morrison]

I did some preliminary work on lean#6112, but then ended up doing most of it via a PR to master, so I'm not surprised there are conflicts.

[Johan Commelin]

#19531 for the script

[Johan Commelin]

I'll now work on linkifying the report

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3942daa810bd06acd4daefa3fc3771378c5b2acb).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

#19532 should hopefully create a linkified report.

[Kim Morrison]

I manually merged lean-pr-testing-6112

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (01b31e1d1d58001128368257a32bd3337a5b576e).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Kim Morrison said:

Just a heads up Mac Malone that nightly-testing at b0a9ae37ac9cfaf7f106c8c88253e09beab56c34 gets stuck at

% lake build
⣿ [?/?] Computing build jobs

As usual, this is probably because I've deleted a file in Batteries; although this time Mathlib itself doesn't import the deleted file. I'll go look through the intermediate repos to see if they use it.

This is happening again. I've filed an issue at lean#6240.

[Kim Morrison]

This time at 3ad5449927085b63f4304a13d534105004783bdd.

[Kim Morrison]

I can't find any recently deleted files in Batteries via git log --diff-filter=D --summary | grep delete.

[Kim Morrison]

Ah, the Batteries dependency on the Mathlib nightly-testing branch was accidentally set to lean-pr-testing-6112. Correcting this means lake no longer hangs. Still, it shouldn't hang. :-)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (53a5bce08b5099841ffdd06a32c37340fcd2e47a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (53a5bce08b5099841ffdd06a32c37340fcd2e47a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (606995ead3bc421c5ebd78e4112a588f188fada3)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8d6349409589ff07b4d82f5b59384ba4cf177092).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8d6349409589ff07b4d82f5b59384ba4cf177092).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1ef016d640f5e5ff5f6b566e8f886073db310e80)

[Ruben Van de Velde]

Heather Macbeth said:

Kim Morrison That test has been pretty weird -- as you can see the actual heartbeat count was 206 heartbeats, but it wouldn't pass CI without upping the limit to 1000 heartbeats (and apparently subsequently to 1200). If you have the branch checked out, could you run count_heartbeats to see whether the actual heartbeat count has increased?

Same in #19342; count_heartbeats says 215 but needs 1200

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1ef016d640f5e5ff5f6b566e8f886073db310e80)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a315e3e56aeeb979335b4f3507ad1e8db2f60edf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (698148763dd29cf98dd2c56b8a44ac8e825461ae).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (698148763dd29cf98dd2c56b8a44ac8e825461ae).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1ef016d640f5e5ff5f6b566e8f886073db310e80)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab780650a6c8db2942d137b91ede7c94c47a4950).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8f06fcac7450cf3e5fc78bcbcb53acfd74121828).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1ef016d640f5e5ff5f6b566e8f886073db310e80)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cf80f345a26ac93fc5f71ff245ae7089fcc97adc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cf80f345a26ac93fc5f71ff245ae7089fcc97adc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f9e900aae7c006d8e9a0f23f222ceb91e522f942).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (21608d1f823014e49969e44316d30c5ea6de2335).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Oof, thoroughly broken in ways. :-)

[Kim Morrison]

I think there are lean-pr-testing-6205 and/or lean-pr-testing-6190 branches, but for Batteries, not Mathlib.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eb9d9b39a42ac6b69b6f2c56de429cb31ac80e69).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eb9d9b39a42ac6b69b6f2c56de429cb31ac80e69).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eb9d9b39a42ac6b69b6f2c56de429cb31ac80e69).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eb9d9b39a42ac6b69b6f2c56de429cb31ac80e69).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c73ab4cda826a2c4a78a21bf064c41c4f74b91fb).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Almost there.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1d86c526627b20fe1a580aae4341ff166747b8ea)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ba7312b5aafeb13465bb9283536208f2158e6150).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• lean-pr-testing-4595 (lean4#4595) (diff with nightly-testing)
• to-additive-4595 (lean4#4595) (diff with nightly-testing)

[Kim Morrison]

Nice! False alarm on to-additive-4595, I guess.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ba7312b5aafeb13465bb9283536208f2158e6150).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (883af569cadb60cf1e7b203baa14dc4a5c964622).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4fafb9f5b76af48f96d2366beee76af2113161f7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (222e64d6bc042156d6e39860ad9f0c79552de8e0)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• lean-pr-testing-6165 (lean4#6165) (diff with nightly-testing)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b8b8a288609c214ad2aac7d3837bedce7e2b4875).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b8b8a288609c214ad2aac7d3837bedce7e2b4875).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a3fcd535e9295e67a5a9d10eef9ed013a5d90f12).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (65cc54340c823eff8861b7d448c2755bbc87bae8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2aefce62d6d933585e9c688b080ebeadc5c8e7ee).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6926cee95dfac950113a35dda8c99defd6fb5442).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5f67609288d56f40ab174ea90db3dda888223a81)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (15569f37660f60880bab6ff414dba791ae78fbb4)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• lean-pr-testing-4460 (lean4#4460) (diff with nightly-testing)
• lean-pr-testing-6176 (lean4#6176) (diff with nightly-testing)
• lean-pr-testing-6280 (lean4#6280) (diff with nightly-testing)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5358a537cab9e63ab57d9ec41b64e112e275315d).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Ah... I restarted the nightly-testing branch, but this was a terrible idea, because now it shows diffs against all the old lean-pr-testing-NNNN branches.

[Kim Morrison]

In particular, I doubt there are actually changes in any of the three above.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1443a7f471cfdde855509db68de15981c2d73096).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1ec33a404152f54bbabe1162c3dfa356a6f8b0ab).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ba241aff369d124b50f9fefc5ba46ddf3b02c437)

[Kim Morrison]

But no automatic reminder to create an adaptation PR, because I'd forgotten to create bump/v4.16.0.

[Kim Morrison]

Just did that.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ba241aff369d124b50f9fefc5ba46ddf3b02c437)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1ec33a404152f54bbabe1162c3dfa356a6f8b0ab).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a8931809d8cef5ce0c893acc2f907ecef61e8ac8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (14e2a6b76e28622f84380169ed4f37b13d596a1c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (da9df8db61024281c6beb7853df1ccec445ba61b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (da9df8db61024281c6beb7853df1ccec445ba61b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ba241aff369d124b50f9fefc5ba46ddf3b02c437)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• lean-pr-testing-6182 (lean4#6182) (diff with nightly-testing)
• lean-pr-testing-6238 (lean4#6238) (diff with nightly-testing)
• lean-pr-testing-6244 (lean4#6244) (diff with nightly-testing)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ea515836ea82a84277b33b28c840a24da4318c4f).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

github mathlib4 bot said:

We will need to merge the following branches into nightly-testing:

• lean-pr-testing-6182 (lean4#6182) (diff with nightly-testing)
• lean-pr-testing-6238 (lean4#6238) (diff with nightly-testing)
• lean-pr-testing-6244 (lean4#6244) (diff with nightly-testing)

Okay, I've repaired the nightly-testing branch. All these diffs now become trivial, so hopefully these false positive reports will go away.

[Kim Morrison]

github mathlib4 bot said:

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ea515836ea82a84277b33b28c840a24da4318c4f).
You can git fetch; git checkout nightly-testing and push a fix.

Hmm, can't reproduce locally, let's see if it repeats.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (da0cfc4d741436ce977bb835884026094ff2a16f).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Both the haveLetLinter and the hashCommandLinter now fail after https://github.com/leanprover/lean4/pull/6299, unless we set_option Elab.async false.

[Kim Morrison]

For now I've just set Elab.async false in the two test files, but obviously this is not a solution.

[Kim Morrison]

@Damiano Testa, I know you're very busy right now, but just pinging you for sometime later. :-)

[Kim Morrison]

@Sebastian Ullrich, in case you already understand what is going on and can suggest a quick fix!

[Sebastian Ullrich]

Thanks, that should definitely be on my side. I'll take look.

[Sebastian Ullrich]

lean#6299 actually simply uncovered an issue that already existed outside of #guard_msgs. @Damiano Testa This part of the linter now breaks:

However, in order to avoid local clutter, when warningAsError is false, the linter
logs a warning only for the #-commands that do not already emit a message.

The problem is that linters do not have access to the prior message log anymore. I don't think I understand the quote: what # commands don't emit a message, what are we linting against here?

[Sebastian Ullrich]

Similarly for the haveLetLinter, why does it care about "noisy" declarations?

[Ruben Van de Velde]

I don't have the context here, but I think there's two relevant rules for mathlib:

• We don't want to have code on master that triggers warnings
• We don't want to have code on master that triggers output (e.g. #check or #synth)

I don't know how these linters are related to that

[Damiano Testa]

Here is some more context: I think that #guard true is a "silent" #-command and the linter should flag it.

[Damiano Testa]

However, if a command already emits a warning, it is not going to make it past CI anyway, so the linter is just noise.

[Damiano Testa]

This is why the linter only makes noisy the hash-commands that would not themselves already trigger a CI error.

[Sebastian Ullrich]

But a #check 0 is not linted?

[Damiano Testa]

Correct: #check 0 would fail the noisy check on CI.

[Sebastian Ullrich]

Okay, it is not about warnings specifically

[Damiano Testa]

No, it is about any output at all.

[Damiano Testa]

Basically, the linter only tries to say something when it does not detect some noise already.

[Sebastian Ullrich]

Well. I suppose I can extend the MessageLog structure to cover these use cases. We should carry the reported messages around instead of a mere hadErrors flag.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a38db992d088e602ba99cdf94f77435bf23e9b8e).
You can git fetch; git checkout nightly-testing and push a fix.

[Damiano Testa]

That would work, but if it is a maintenance burden, maybe there are different approaches for the linter.

[Sebastian Ullrich]

It is a neutral change in the code but might save us from other trouble as well, who knows

[Damiano Testa]

On the other hand, having access to the messages themselves, would allow (other) linters to react to those.

[Damiano Testa]

I have experimented a bit with linters to find "unused" code, such as unnecessary set_options or nolints and I think that for some of these (not developed) linters, the message log could be useful.

[Sebastian Ullrich]

lean#6307 introduces MessageLog.reportedPlusUnreported that should be usable to fix both linters

[Sebastian Ullrich]

What is the correct way to test that given that nightly-with-mathlib does not contain lean#6299 yet?

[Johan Commelin]

Does lean#6307 build on top of lean#6299? I guess then we should use the lean-pr-testing-6307 branch

[Sebastian Ullrich]

I assumed that branch wouldn't be created if my lean4 branch is not based on nightly-with-mathlib

[Johan Commelin]

Hmmm, I think that's right.

[Sebastian Ullrich]

Might be easier to merge 6307 and then fix on nightly-testing, I don't foresee any need for further revisions

[Johan Commelin]

Ok, alternative would be to rebase on nightly-with-mathlib

[Sebastian Ullrich]

Wait, then we'd have to wait for the next nightly

[Sebastian Ullrich]

Johan Commelin said:

Ok, alternative would be to rebase on nightly-with-mathlib

A bit annoying since I have to include the right commits in the rebase but I've done so now

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a38db992d088e602ba99cdf94f77435bf23e9b8e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0e2973b0fb7d17e76965ed500540c189787b571c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9bec372f2c4bd188669f930fa1b74bd13a52131b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4745c02319412eeffd9dedd0284b48f8e30eeee1)

[Kim Morrison]

@Johan Commelin, we're no longer getting "bump branch reminders". Last time, the problem as that bump/v4.15.0 didn't exist. But this month I've remembered, and bump/v4.16.0 is there.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4745c02319412eeffd9dedd0284b48f8e30eeee1)

[Johan Commelin]

In this part of the workflow:

    - name: Fetch lean-toolchain from latest bump branch
      id: bump_version
      uses: actions/github-script@v7
      with:
        script: |
          const response = await github.rest.repos.getContent({
            owner: context.repo.owner,
            repo: context.repo.repo,
            path: 'lean-toolchain',
            ref: ${{ steps.latest_bump_branch.outputs.result }}
          });
          const content = Buffer.from(response.data.content, 'base64').toString();
          const version = content.match(/leanprover\/lean4:nightly-(\d{4}-\d{2}-\d{2})/)[1];
          return version;

we are getting errors: https://github.com/leanprover-community/mathlib4/actions/runs/12173176628/job/33953099942#step:12:27

     github-token: ***
    debug: false
    user-agent: actions/github-script
    result-encoding: json
    retries: 0
    retry-exempt-status-codes: 400,401,403,404,422
  env:
    NIGHTLY: 2024-12-04
    SHA: 4745c02319412eeffd9dedd0284b48f8e30eeee1
TypeError: Cannot read properties of null (reading '1')
    at eval (eval at callAsyncFunction (/home/runner/work/_actions/actions/github-script/v7/dist/index.js:35424:16), <anonymous>:10:79)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async main (/home/runner/work/_actions/actions/github-script/v7/dist/index.js:35522:20)

[Bryan Gin-ge Chen]

The error is saying that
content.match(/leanprover\/lean4:nightly-(\d{4}-\d{2}-\d{2})/) is returning no matches.

[Johan Commelin]

git checkout bump/v4.16.0; cat lean-toolchain
Switched to branch 'bump/v4.16.0'
Your branch is up to date with 'origin/bump/v4.16.0'.
leanprover/lean4:v4.15.0-rc1

[Johan Commelin]

Makes sense...

[Johan Commelin]

It is the start of the month, so lean-toolchain is on an rc, instead of a nightly.

[Johan Commelin]

Need to have breakfast now. But if we bump the toolchain to a nightly, it should start working again.

[Johan Commelin]

And I can try to make the script robust against this scenario.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4745c02319412eeffd9dedd0284b48f8e30eeee1)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• lean-pr-testing-6315 (lean4#6315) (diff with nightly-testing)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (06422de9546612e92bafe15d4aa557b4b6a220d1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (39eac4b7b275d558516e3b2c182a003b01698e02).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (498c8c34f7c7a2a41dd1ef4cc8295103caa07ca5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b01be4bda23a785e988643a07f24c7e478b23c83)

[Johan Commelin]

github mathlib4 bot said:

We will need to merge the following branches into nightly-testing:

• lean-pr-testing-6315 (lean4#6315) (diff with nightly-testing)

Did you intend to have the nightly-testing branch of mathlib depend on the lean-pr-testing-6315 branch of batteries?

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b01be4bda23a785e988643a07f24c7e478b23c83)

[Kim Morrison]

No, that was a mistake, which presumably would have been avoided if I'd used your new script. :-)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b01be4bda23a785e988643a07f24c7e478b23c83)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (c6f4e015f5c536740ae52ea5926112e95d330f5a)

[github mathlib4 bot]

We will need to merge the following branches into nightly-testing:

• lean-pr-testing-6330 (lean4#6330) (diff with nightly-testing)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (653f17d0c439d2d9d55797995521660adc6df994).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (37305b9e5eff20c7b426a9905ccd04b387203bf1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (21d992dd68e83a90bc1b22b677f90246efaf214a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a988e8b369e20ae90b4998923e4efcd732a1da62).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9a3b5ca02eeb6b8821b1adeed6d540da55cbf469).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (19b191ae82eabc6ade3c07cc325998bd8bee478a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (31530f31d529f37cde81d086fe10b68e9eb1ee2f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (31530f31d529f37cde81d086fe10b68e9eb1ee2f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (294458c5add8df2c106f392d97e53aec900e95f5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (65c00859d05eb8ff717bb0f06ff355609be271b2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (20b2fd4c7be9ad9e2acf3c4347aa02aac4209a68)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d9df436d7f9d6e2eb0aad05d429d2fc53d4e301d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ded531d92e509cb63d09ed490f49dbe45dde217e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5d2254fa2ab034e34b4ae1363d48ea7acf430a6b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5d2254fa2ab034e34b4ae1363d48ea7acf430a6b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5d2254fa2ab034e34b4ae1363d48ea7acf430a6b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f0f251d299ff907bada73f4dbfba2dfd0d619b69)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bfdd6039bf11a194e78a351b27e21774684a016e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (14375b940a8d2372f6eff562acf72b9a75393810).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (16956ef06e49e3e4f34d7be6d97f170580b42a79).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f0f251d299ff907bada73f4dbfba2dfd0d619b69)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5f72b2e28cefb818887e4a7b7de72b6062fa1fc1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d840f50ab07fb0170966e100a11aef6123eaf306).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d1a65ef8cb89d1abb40397f03aa58f55f7438556)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (67e672d5aba8e1e7cd4528bcc344c1af623ef4dd).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Required a minor fix for lean#5757.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d337aa990393a12a169ce0198e119251442d574e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (383b0748ba499f742d97bf6ff772502b1e458986).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e42ca30b426589436293e6f614df7349f9c3b043).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2f5c9675058cba44a8773c8e559b7d126b107570).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (98dbd12b96d0c47ff7292af3340fabc0d27dd125).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b0a22ed4c5641d49feb0bd02f469d2f0e0cc5daf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (24a956e927a627c16a104adc19ceca8b33569ea7)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0662d0b6717c1777680219f9308baa68dd10abd8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0662d0b6717c1777680219f9308baa68dd10abd8).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Should be working now. Just a few final adaptations for lean#6123.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d19d8405b0688fc5ac60e53056a822f6e53a34ec).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b09464fc7b0ff4bcfd4de7ff54289799009b5913).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (79d29f84f37ec475db18dc902ccfdffab51ff0c6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1ed7634f46ba697f891ebfb3577230329d4b7196).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (37a149f02b44682bb186c430d0a896dce3c1f17f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a395cd00a4fbe946ca76ff1fd1d1c78129a135ff).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (af60d5dfe21be6d33cc1592aec1b4a598efdd023).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (af60d5dfe21be6d33cc1592aec1b4a598efdd023).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ddcb85bddebd7fa5b7316dab25b7eae6e0ff1fbb)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (13dbab738d85e172eaed1ba05012dd6b48c72039)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3f813de52d8cffaa73e27edd62364eec90eac633).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ed2f6ae5860b941bc054f11d5e402a480667d9e0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (95e4d18407c257812c48cf37309b701918c5bf1d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2927e227ec9454096c0507b4ac8386b3f4f09e5e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0f3e538b0b562f4ecf8baeebd1337c4c1ed138e7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (458cc7d8784d3b2c54e3e142ae76e5aca576bc94).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b18fc8a82981a8fbf1c48387e28cd63422e3fccb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b18fc8a82981a8fbf1c48387e28cd63422e3fccb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b18fc8a82981a8fbf1c48387e28cd63422e3fccb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d5bed454ee2c347b2d60a12fc609ed827c070617).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bb0575e329e059f7ec31c43337a2094282f6be3c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9890d5ff187e6a1625705cce1f16623a755a22db).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9282f9eb8423e3ef68a61e0a13d1129179d11821).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (495ec69bfbbe8fe20099db76e889e39b676ba43f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d8e48a35237bfc90f26ca475fc198fe520a2e8e2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2144977fb121989a45d3f6e4d74fd8ab2350db3e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2144977fb121989a45d3f6e4d74fd8ab2350db3e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b7666b8884e893f12010025b159a44acf6c293ab).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cbe8d43a7e6c614db88fc2ad8f0520e50c1d3dae).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b0466d1f33bcd06da8603dfe618c721422b37ac6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (933ad5493803f4c495f252678466ede6e1e2ee79).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (933ad5493803f4c495f252678466ede6e1e2ee79).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (054d75b44095e8390c2afd9744e30c3b2b6cbd42).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dac878dc2fde17aa9d7678bab2aed47c227a9063).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dac878dc2fde17aa9d7678bab2aed47c227a9063).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Mac Malone, despite releasing v0.0.49-pre1 of ProofWidgets, with your changes from https://github.com/leanprover-community/ProofWidgets4/pull/95, Mathlib CI on nightly-testing is failing with

✖ [427/5760] Building proofwidgets/widgetJsAll
trace: ././.lake/packages/proofwidgets/widget> npm clean-install
trace: stderr:
could not execute external process 'npm'
error: external command 'npm' exited with code 255
Some required builds logged failures:
- proofwidgets/widgetJsAll
error: build failed

[Kim Morrison]

(And this reproduces locally after I uninstall npm.)

[Kim Morrison]

If this something you'll be able to take a look at?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (32ba402fc2048299c9c0e153b72b4d4ea8aade19).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7669cc54f7c5c7f632570bfc610874709fa9306d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (49ac6bf04dc187ffc0a056421c603fcefce6991a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c9f97ab5091a2a3ac9eaba5745ee293ddfee8dde).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c91dd0e151d3f0b6755d35119cd7943a516addb8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0065e8d93b880f81391d0c21f3aa49a06f80ef87).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (af8d133b3172e865899d7c37a7df09c805f22130).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1f3a116fa040a90a1f9bfbd675a968ab171ee2f8).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Local build is looking promising!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (78a1c375495f3164e10f544789cab6ca76fecb40).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5465191d90fbd463c69cf994a2648cb87be33b63).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5465191d90fbd463c69cf994a2648cb87be33b63).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5ba57828ba4b35ddea3f87fd09ce5a87ddef7142).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (81263905255dea7b1663a7749af7ee277c01f681).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (74c027f022e7dfcab00f7104dfcd29b2070d38f1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (75faccb7c68b07af22d7a2bd5f44a3d6ce7d3d49).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5ba284dd1c79017ec5bfc667d7f193c73de3e595).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (839e3f6ba9240d043d4ef510140f10d00cad36f5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (839e3f6ba9240d043d4ef510140f10d00cad36f5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8a4877456aa721f76724451be03284db54851891)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1c080cc45939aaef448022267a6965a19e53c7bf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1468375308d1c9fb517d8a69cbac94218df8e723).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Per discussions in the maintainer channel, I've commented out the entirety of Mathlib/Computability/TMToPartrec.lean and Mathlib/SetTheory/Ordinal/Notation.lean (these are both leaf files in Mathlib) on the nightly-testing branch for now.

@Mario Carneiro has offered to take a look at these and do the repair, thank you. (If this won't be possible before January 4, please let me know so we can make plans for what to do at the release of v4.15.0-rc1.)

[Mario Carneiro]

yep, should happen today or tomorrow

[Mario Carneiro]

@Kim Morrison I'm looking at the fallout and I don't really understand the new behavior of simp here.

def foo : Nat → Nat
  | 0 => 0
  | n+1 => n

example (n) : foo n = foo 0 := by
  rw [foo]
  -- ⊢ foo n = 0

example (n) : foo n = foo 0 := by
  simp only [foo]
-- ⊢ (match n with
--   | 0 => 0
--   | n.succ => n) =
--   0

Previously, definitions like foo would only be unfolded when applied to one of the match patterns, as in the rw version. But now simp only [foo] is unfolding all occurrences, which is taking us back to the situation where we had to create definitional lemmas and mark them @[simp]...

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8df8f11ba8d462d3de44e7b2ee0b9ae1b3cefe61).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I think this is by design, but I am double checking. Not sure if I'll have a response for you though before I go offline until the 3rd...

[Mario Carneiro]

looking back at things like List.map, I see that we still aren't marking the definition as @[simp], so maybe I hallucinated that we ever fixed this issue

[Mario Carneiro]

but for giant functions like this it's really painful to have to restate all the definitional lemmas manually, and especially since lean generates the lemmas itself I don't see any argument for this being a good design

[Mario Carneiro]

(not to say that the specific change in this PR wasn't a good idea for other reasons - it may simply be exposing this latent issue and/or making it obvious in more places)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8df8f11ba8d462d3de44e7b2ee0b9ae1b3cefe61).
You can git fetch; git checkout nightly-testing and push a fix.

[Mario Carneiro]

Oh, this also seems a bit bad: a definition by recursion on PosNum fails to reduce when applied to 1, because there are a handful of functions before it reduces to PosNum.one. I'm not really sure what the best solution here is

[Mario Carneiro]

How does this work for 1 : Nat? Or is lean just cheating here

[Mario Carneiro]

the issue in Ordinal/Notation.lean seems to be similar, 0 : ONote is not simplifying when used as an argument to a recursive function

[Mario Carneiro]

I had to mark

@[simp] theorem repr_one : repr 1 = (1 : ℕ) := repr_ofNat 1

as simp but it's the n=1 case of a more general theorem about ofNat and I can't find a way to mark it such that simp will use it

[Mario Carneiro]

this is pretty bad... all functions are not working on 0, but it's the simp normal form

[Mario Carneiro]

I think I might have to just make the simp normal form be ONote.zero

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8df8f11ba8d462d3de44e7b2ee0b9ae1b3cefe61).
You can git fetch; git checkout nightly-testing and push a fix.

[Mario Carneiro]

@Kim Morrison I've pushed fixes to lean-pr-testing-6397 branch. I will leave it to you to git revert the commenting PR and rebase this fix instead

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (21a4ad338cabc3b995580c306dab8cc148159e09).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (62fd5798b4a61e5cbeee6e32562dcb4cbd66e0b1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (31ee34b844cdabf8b0d9a7adc42396b9974c8631).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (765f372d01b18e5917ad3fa42cdd8f9d07d757ae).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Mario Carneiro said:

Kim Morrison I've pushed fixes to lean-pr-testing-6397 branch. I will leave it to you to git revert the commenting PR and rebase this fix instead

Thank you! I've reverted and merged.

[Kim Morrison]

Mario Carneiro said:

Kim Morrison I'm looking at the fallout and I don't really understand the new behavior of simp here.

def foo : Nat → Nat
  | 0 => 0
  | n+1 => n

example (n) : foo n = foo 0 := by
  rw [foo]
  -- ⊢ foo n = 0

example (n) : foo n = foo 0 := by
  simp only [foo]
-- ⊢ (match n with
--   | 0 => 0
--   | n.succ => n) =
--   0

Previously, definitions like foo would only be unfolded when applied to one of the match patterns, as in the rw version. But now simp only [foo] is unfolding all occurrences, which is taking us back to the situation where we had to create definitional lemmas and mark them @[simp]...

This behaviour wasn't changed by lean#6397. We're planning further changes in this direction, however.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b774a65bf5d20fd92d63eb98d03be2b29dfd9f27)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (63618639886f3bea1260812a0e5b81aebdc8cc60)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ed546d89ba3b9fa2c93b3501b9f6aac3593c930d)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (df6f676c7ca09a603a90260ca0e8ada34c3bf155).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cd2213b6efc7c0ce581044c1e187be9a5cb6caac).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7d83d27ad7bfeb08a2d858ef8028e9f9d12f77db).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Just a heads up that I will not be touching nightly-testing until the 3rd. If anyone would like to fix it that would be amazing. :-)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0c3ebf2713efb1dd3d29fcdd5d3eabb1cd048b64).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2f55464865131df719850a6eace00516f9f9a201).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ed546d89ba3b9fa2c93b3501b9f6aac3593c930d)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (9a6b101b298066238b15e3fbd66618c2088cc693)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8157db740f7cbf298fb4839f6b1b81b03f76d44e)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d97af69f33c3a73efddc6db118bf4ffdb0ff78cd)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (9cbdb8573d4029e6ae53898ae6002b9f9b95328c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1b71c694536f17c6bf6936100339f1cdad203588).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (054515ea2a5d7f68512934b27548725e733e8cbe).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e8a30842b99b9828a09461fffeaa56cd74287dac).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e8a30842b99b9828a09461fffeaa56cd74287dac).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e8a30842b99b9828a09461fffeaa56cd74287dac).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (161c83c3e874142a5a1658146ac3d26e43a91dc6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (161c83c3e874142a5a1658146ac3d26e43a91dc6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (161c83c3e874142a5a1658146ac3d26e43a91dc6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0c419e32e8cc2b54b3ac18eafa3595cd17659e1e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (84397c9ac1acff58fe69934a8d8ee44e2b9d85a0)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1a402974fd696ae8df2990028b9fac0752700d79).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e423a1f0105a779265101af2bd177f5d8065c594).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e423a1f0105a779265101af2bd177f5d8065c594).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0da6485fb4629890947f49ed3ee5e3d5269ff32c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (68fbd252aa5d0168c5f582c0f66b3005dba683e1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (007c83315419f9d66e0056ac22cd99fabbad8069)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b4e6697e701bb49bcf49c504b8335747f55171c8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (007c83315419f9d66e0056ac22cd99fabbad8069)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (310c1aa3b3b315662b745a38d252e8668dbc15d5)

[Johan Commelin]

@Ruben Van de Velde Thanks so much for fixing these failures :tada: :octopus:

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (310c1aa3b3b315662b745a38d252e8668dbc15d5)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (c3cb62f4b4768c69484af8be1988e1d8ae00c3ce)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7178aee7a431bb7527da15c3507836d8dfefcda4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7178aee7a431bb7527da15c3507836d8dfefcda4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bd681bc33a22201938feb3796dfad236496726dd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9419c034110d02f83c8cf286f877c624e492e16f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (504007f6f772de93ea967b17320baeac5a21cb55).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c781ca864408200f5f68bff153a83bd95b3775da).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ec10d9ba44225d66e790787d0f5b19a14830337e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5e5c6da9e047d879ce36de0761405785f64f61fb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5e5c6da9e047d879ce36de0761405785f64f61fb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e814fc9cda4aed84c5302727cb7d2d0dd45c647e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (38800e147b0bd6d9173e862c744609a4d8c18d1d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d458ec9af73e637e20410d0496462c2426f887c3).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

@Eric Wieser The problems have to do with RefinedDiscrTree. Could you please take a look?

[Johan Commelin]

Merging master doesn't fix the issues.

[Johan Commelin]

In particular, there seem to be two different RefinedDiscrTree types now. Is that right?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (041d59b4c1ad8df53c9ea0224b076f0f3c60ddc4).
You can git fetch; git checkout nightly-testing and push a fix.

[Eric Wieser]

No, there's still only one, but there was an intermediate commit where the filename and namespace didn't match

[Eric Wieser]

It looks like something has been merged badly into nightly-testing

[Eric Wieser]

Yeah, https://github.com/leanprover-community/mathlib4/blob/nightly-testing/Mathlib/Lean/Meta/RefinedDiscrTree.lean had its content moved to four new files, but somehow nightly-testing has the content both in the new files and in the original

[Eric Wieser]

The https://github.com/leanprover-community/mathlib4/commit/247f3aa825982e579b94881f13ac428472b6f85a merge commit is bad

[Johan Commelin]

Aha, how should it be fixed?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (041d59b4c1ad8df53c9ea0224b076f0f3c60ddc4).
You can git fetch; git checkout nightly-testing and push a fix.

[Eric Wieser]

Johan Commelin said:

Aha, how should it be fixed?

Paste the file at master on top of whatever nightly testing has, maybe?

[Eric Wieser]

I think it's better to make the adaptations over again from scratch than lose changes from master

[Johan Commelin]

Did that. Let's see if it worked.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (c7c1e06e17bc790c799baec988d32a7abaa51875)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (15d915fa08f4c49f024aa59d1954fde50cca38c1)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a97b21ff86ea58a827f0d95be7ff3d799647b417).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a97b21ff86ea58a827f0d95be7ff3d799647b417).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c8e9d14233399d0c195b8dfd478fd96d4364fb10).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6d2cbb58e68c7424d746005d5bbf75a31cb14cb6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0061a577b405448e5bd709c059c2ac246fc0b1d3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b43248be90578db4b4158698029b1200ab4df641).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1e25efce54c09ee2321f801cb4b51126869ae8c6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (33876800b00716486c19466df8efee1440a3e777)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (bc1d910c4bf47623e9e4038ec005877c38183305)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9afdff78cbdf653902190167fd1429e4adc4ac89).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (00495cea91b1d8614e4957572cb32d1679b4296f)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (9f2fa6ce057e6b196523b83134f1db0b2adafada)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a5e74b31f33ac8d48faaad46d8b6da297aa46fcb)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f227e4af164386c81166cdc4e8e263323b586a36).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4755cdd41545a5cbb88c3a0c3092554467cd9886).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab7742ecee7a124d8eb89d28cbd570252ff517b5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1e7d93f1607609b889e37abf9cf87f9290b83b7c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0a078d0b0c7fdf68a3e718818265e90116a05612).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

This is waiting on the update to import-graph needed after batteries#1091.

[Kim Morrison]

Ah, which is all ready to go at https://github.com/leanprover-community/import-graph/pull/49. I'll merge.

[Kim Morrison]

Merged, and bumped deps on nightly-testing, should come good now.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0a078d0b0c7fdf68a3e718818265e90116a05612).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1e7d93f1607609b889e37abf9cf87f9290b83b7c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (973fc78afb24119af738f370764bf7820a4e86a8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (973fc78afb24119af738f370764bf7820a4e86a8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (2a00a07c117d5c40c4bc779c66091fd8fc653155)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e0a7afcfbf892b9c888ae3c680036a140eee6479).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (2a00a07c117d5c40c4bc779c66091fd8fc653155)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c083085d05d098ff6bae992740c6d7eadf1c4cf1).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

We've been having trouble releasing nightlies due to a Windows linker issue. My understanding is that this will be fixed once lean#6622 is merged, but until then Mathlib's nightly-testing will remain broken.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a7b5e89018c3880ed1610530327aeb1ff9ac7b2c).
You can git fetch; git checkout nightly-testing and push a fix.

[Henrik Böving]

That's an actual failure now :tada:

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ba207fbdbaa72544b58589ea3ae95a8ca6e5d595)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dc5b3f0c90e6e91580442a3ec4df5cf3ee638eb0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d2f7b08b793953e9ce82db4d52979668fe94d71b).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Hmm, that's a bit scary: part way through the build Lean just starts failing with incompatible header on every file.

lake exe cache build && lake build seems to be working locally, however.

✔ [4911/5895] Built Mathlib.Probability.ProbabilityMassFunction.Monad
✔ [4912/5895] Built Mathlib.RingTheory.Polynomial.SeparableDegree
✔ [4913/5895] Built Mathlib.LinearAlgebra.Eigenspace.Zero
✔ [4914/5895] Built Mathlib.RingTheory.AdjoinRoot
✖ [4915/5895] Building Mathlib.Analysis.NormedSpace.Multilinear.Curry
trace: .> LEAN_PATH=././.lake/packages/Cli/.lake/build/lib:././.lake/packages/batteries/.lake/build/lib:././.lake/packages/Qq/.lake/build/lib:././.lake/packages/aesop/.lake/build/lib:././.lake/packages/proofwidgets/.lake/build/lib:././.lake/packages/importGraph/.lake/build/lib:././.lake/packages/LeanSearchClient/.lake/build/lib:././.lake/packages/plausible/.lake/build/lib:././.lake/build/lib LD_LIBRARY_PATH= /home/lean/.elan/toolchains/leanprover--lean4---nightly-2025-01-15/bin/lean -Dpp.unicode.fun=true -DautoImplicit=false -Dweak.linter.docPrime=false -Dweak.linter.hashCommand=true -Dweak.linter.oldObtain=true -Dweak.linter.refine=true -Dweak.linter.style.cdot=true -Dweak.linter.style.dollarSyntax=true -Dweak.linter.style.header=true -Dweak.linter.style.lambdaSyntax=true -Dweak.linter.style.longLine=true -Dweak.linter.style.longFile=1500 -Dweak.linter.style.missingEnd=true -Dweak.linter.style.multiGoal=true -Dweak.linter.style.setOption=true ././././Mathlib/Analysis/NormedSpace/Multilinear/Curry.lean -R ./././. -o ././.lake/build/lib/Mathlib/Analysis/NormedSpace/Multilinear/Curry.olean -i ././.lake/build/lib/Mathlib/Analysis/NormedSpace/Multilinear/Curry.ilean -c ././.lake/build/ir/Mathlib/Analysis/NormedSpace/Multilinear/Curry.c --json
error: ././././Mathlib/Analysis/NormedSpace/Multilinear/Curry.lean:6:0: failed to read file '././.lake/packages/batteries/.lake/build/lib/Batteries/Data/NameSet.olean', incompatible header
error: Lean exited with code 1
✖ [4916/5895] Building Mathlib.RingTheory.DedekindDomain.Basic
trace: .> LEAN_PATH=././.lake/packages/Cli/.lake/build/lib:././.lake/packages/batteries/.lake/build/lib:././.lake/packages/Qq/.lake/build/lib:././.lake/packages/aesop/.lake/build/lib:././.lake/packages/proofwidgets/.lake/build/lib:././.lake/packages/importGraph/.lake/build/lib:././.lake/packages/LeanSearchClient/.lake/build/lib:././.lake/packages/plausible/.lake/build/lib:././.lake/build/lib LD_LIBRARY_PATH= /home/lean/.elan/toolchains/leanprover--lean4---nightly-2025-01-15/bin/lean -Dpp.unicode.fun=true -DautoImplicit=false -Dweak.linter.docPrime=false -Dweak.linter.hashCommand=true -Dweak.linter.oldObtain=true -Dweak.linter.refine=true -Dweak.linter.style.cdot=true -Dweak.linter.style.dollarSyntax=true -Dweak.linter.style.header=true -Dweak.linter.style.lambdaSyntax=true -Dweak.linter.style.longLine=true -Dweak.linter.style.longFile=1500 -Dweak.linter.style.missingEnd=true -Dweak.linter.style.multiGoal=true -Dweak.linter.style.setOption=true ././././Mathlib/RingTheory/DedekindDomain/Basic.lean -R ./././. -o ././.lake/build/lib/Mathlib/RingTheory/DedekindDomain/Basic.olean -i ././.lake/build/lib/Mathlib/RingTheory/DedekindDomain/Basic.ilean -c ././.lake/build/ir/Mathlib/RingTheory/DedekindDomain/Basic.c --json
error: ././././Mathlib/RingTheory/DedekindDomain/Basic.lean:6:0: failed to read file '././.lake/packages/batteries/.lake/build/lib/Batteries/Data/NameSet.olean', incompatible header
error: Lean exited with code 1

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (db3b11e6f0e79ec5e416d03fd29c873739e748dc)

[Ruben Van de Velde]

Random bitflip in that one olean?

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (db3b11e6f0e79ec5e416d03fd29c873739e748dc)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0ec82d5aaaa6562ad1758c7b6569bce8a7f5cf8b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0ec82d5aaaa6562ad1758c7b6569bce8a7f5cf8b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (71e670b6034537743f154aacb706a8d568216c54).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (94099b4e3e03fbb365bb797d566a2168442c7a34).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0d3784625d21570a7f5e475ae27e34177107f6c3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b57abe19e88c3b836e84c3b6d5690065376f7f3b)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e6c7f46380cd18cb17d8759249c26429e6893b09).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e6c7f46380cd18cb17d8759249c26429e6893b09).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b57abe19e88c3b836e84c3b6d5690065376f7f3b)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (66e14198c9acbb7f21fd32c34d0bba8c2ff3c7b6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f059ccdd26b54901d17ae8cc90c0ee58b88bedb0)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (7de4ea33f32d8a5fe224e82e755a342fde3a0fa4)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a58a89a28f740bc7878e82806f3ddf2f67bfd65a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Fixed.

[Kim Morrison]

Curiously, it was the #count_heartbeats test file, complaining that simple things like example (a : Nat) : a = a := rfl now take 8 heartbeats rather than 7.

[Kim Morrison]

It's only one heartbeat, but maybe it is a sign of something nasty?

[Kim Morrison]

I guess @Sebastian Ullrich landed some pretty fundamental changes today, so we shouldn't be too surprised.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5b336e4a3fbd4642747e804d86e4d31ba469119b)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0f52dbc81e1f931efb1b41f8ced91dae40d1d4f4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c4510a08da413b6c60c3eb8d5304aa45426b3b64).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e43c7732f3e074817dad5659dbc751a3a3bc9b1c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6313738aeb18ad4aadb1d0c890a4baae06fd8180).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Needs an update to ProofWidgets too..

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a17fe140cca9b29dfa7ec9727deabd7bc114ba63)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1264ce95ed09c73b4aadc6ec45fc7db15897e79d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1264ce95ed09c73b4aadc6ec45fc7db15897e79d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1264ce95ed09c73b4aadc6ec45fc7db15897e79d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1264ce95ed09c73b4aadc6ec45fc7db15897e79d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (dcf59332226749edf58a2cf191d2672c0083fa48)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (9bfb7cd4e59c6c6d16d745f27e2370d1d8a4d638)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (97bce08481d96a1eacfba45ffe14f4e05709c36b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (72bf52f21e463ed123c31426cecc3ba6a5878092).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bd502a40fb334f8d7007d830793db6509680c886).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3226828897ffb337c36a3f486aaf2b0e6c0e9e6c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3dc2beffa4849b995f5bf41d58cf25a47ef9ed44).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (9bfb7cd4e59c6c6d16d745f27e2370d1d8a4d638)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (681a0a09c81894fb47870c2d9b318360716f0b04)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ffaf9758753e7e58dfb0b5d60d531a72d6fe6413).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1cbfe61c57846329c6daec86f44706ce589f9477).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e1f9f040625dc9473eade841874dfea86c33dd60).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (3e696a8a9edeb0fca0e1a9df552c7e91d2aca018)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (578b8b9c0de205ff68df2d66f6c20828122e4242)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b36f8b22a2bdf77d064996493768f6f780d5f4c2)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (413249c638b4c9453166d2b94c9a7f13f6238b14).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5011e4754518f50f90c05ead57ff20f753d60c98)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (94b2ff5a02d742d2b90bc22e5a0da8f4bef2c68c)

[Ruben Van de Velde]

I extracted the changes that already work on master (which was most of them) into #21184, quick review appreciated

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2fc44e9c4aa0b14de7885879e499fb00c1b8e093).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (edd636fc612442a540d77efd4fdbc9308de8c222).
You can git fetch; git checkout nightly-testing and push a fix.

[Ruben Van de Velde]

I broke it, I fix it

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (090d323e8ca9c45ee4cb6e4bcbd28dd58eeab426).
You can git fetch; git checkout nightly-testing and push a fix.

[Ruben Van de Velde]

And so did Kim, apparently

[Kim Morrison]

Oops, sorry, are we at cross purposes here?

[Ruben Van de Velde]

I think we made exactly the same changes, so no worries

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (94b2ff5a02d742d2b90bc22e5a0da8f4bef2c68c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5ff0a4782ee8ac78210032b135f7037e8c895153).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (23e223e4cbe6f55c49ca01f8a94496ba84981f9c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3cbf001210ddcf4c05ca37bb6c33bd4769616089).
You can git fetch; git checkout nightly-testing and push a fix.

[Ruben Van de Velde]

(simpnf warnings)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b7ce26aaad6985218edd7cc8caa517846e25be1f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (323ed6b5ce297555377a927ac5d0f38b73b825e8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b0e2db2f53338ae6bc3506cfc201840f090332c3).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Just needs a shake

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (7b2d9ab953bba5cceb441b1641eae8ee62fe03fd)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (16e417ea1db9867753f0618a2a4446ebe6f7583a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (7b2d9ab953bba5cceb441b1641eae8ee62fe03fd)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (132efc702f743d24550d2b85b029ea64ffafbcab).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Because of some bad timing for the cut of the nightly, I had to "downstream" a bunch of lemmas into Batteries that will land in nightly-2025-01-31, and then can be removed again. If it wasn't the end of the month and on the verge of cutting a release, I would have waited a day instead.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (132efc702f743d24550d2b85b029ea64ffafbcab).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9571e4aeb3689e34e89f18bba35fda5ae7a1fcd5).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Just a heads up that I have outright deleted MathlibTest/CountHeartbeats.lean. It's currently not fit for purpose, as it relies on checking exact heartbeat counts.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e36c2b838cb650a07a6b95ae8eb96dc39b7468b2)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (01a1707b7dff363729b99ba566d378bc77c0df9d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4e87722e4b41edb65206954e7debb2152c919fde).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (432e7f81b666b3821733768a4e87bd2a77dda052)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ee185c77453acccd00a506f01cd01692a7e55a5c)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b9329078bf12b90531207e8efd16c6ad543ee0d5)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e6775eae2c7970308672a1674b9dcadb042047ab).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (347a323db691f7dccd175ebc3d6fab8d0c8b1d82).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a94c6d1c3e86987f507443d7464a2c802c2e39ac)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in the latest bump branch does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.
Current content: leanprover/lean4:v4.17.0-rc1

This needs to be fixed for the nightly testing process to work correctly.

[Yaël Dillies]

Ooh, exciting new message

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a94c6d1c3e86987f507443d7464a2c802c2e39ac)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in the latest bump branch does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.
Current content: leanprover/lean4:v4.17.0-rc1

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a94c6d1c3e86987f507443d7464a2c802c2e39ac)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in the latest bump branch does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.
Current content: leanprover/lean4:v4.17.0-rc1

This needs to be fixed for the nightly testing process to work correctly.

[Kim Morrison]

I've added a step to Lean's release_checklist.py to check for this problem. Johan will fix it tomorrow when he finishes the checklist.

[Johan Commelin]

Should be fixed now.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a94c6d1c3e86987f507443d7464a2c802c2e39ac)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2dd5bb2d33e82377b2cc4e347e2317a4ec0603bc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (79ad6ef36345d2b2b3f7c340017c0738e69d6dd3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (9bdd95bdc7906447e1aea509cf21c8d39633183f)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0642034a4e45d5b21dbf5d4cdd8141ef7c0c686a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (435383539c55f501dedaa2ae9462bcef3d5f8882).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ad7930c3f767a589b1fc696529af28a97f714308).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3eb0ff709449ce0401b0032e17d61dd0f5d51b46).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (24c597596e1eab32ef9047e2ca944e099df3d294).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a68f922664ee0046150089fb421964c89575c08f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f6895b222238ccf2027d2885ff9900a801b0f853).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f6895b222238ccf2027d2885ff9900a801b0f853).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8a2d338ba77347504a3a5a57fe4401d9ddf05d01)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (fdd759714b98d9c371a832e842643255a385e9e9)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c7a2a04be15f08bc892687f61b11059b43c8cb3b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c7a2a04be15f08bc892687f61b11059b43c8cb3b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (fdd759714b98d9c371a832e842643255a385e9e9)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bbbf03a57847e7b7d06615da69c4d712f68f854f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bbbf03a57847e7b7d06615da69c4d712f68f854f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c3492e1786adc9f37c7a0bb0da1f6fe84f7d01cb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (feff2b7a3b3f7e4351993a12e2d8aa400b7a88a4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1d666be8e3702cea5a68f7c5927ecccbb4e58b91).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a71c1cefd363a33ecb382055c5823e7a63cd72bf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (53d1998f8b520572d0b7bbb5d795b83a68439f0d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (440c3d5524efacb02f3897055bb04260cdb9019d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (82c447bebd3786d983de04212b2714e7bb011f66).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (82c447bebd3786d983de04212b2714e7bb011f66).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5b94d7fda9269ed8a9ea84625c7934b8994b4d48).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (caef0374c9c8787d807ec54773fc90ed871d5ffd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1c6671052038c292997d391b8ab6272f75288120).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4ba7257a1a92242e9e8f2307f0b7d4bb70420ab5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0868356db19999db4ce0bea593f6fd3b4f19e07a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e05e225065104b31833e1dad5cb06b0862b2fa6d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e05e225065104b31833e1dad5cb06b0862b2fa6d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (50c9a9bd433367a722e0b109c04b3514e0eb2ea7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a04abe9b91cca2a2275a46fe5277a863d721e611).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c1d47161522b8d5e570c10245776cc33c69ae085).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3d193da9516cf6a8ae8dd7a0f7fe1b7747b9250b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a443ebbe967fa2bc8dd707a948e31458d320d21a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (58238a71a42926206ac79f587c43eccdaafc8a4a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (418896cb01a8109b3298660b41fb8656e8a0234b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (370e197c3682b1b952160e58965fbb734bc23c26)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e2649ed629bd663355c3cb6ac5535151fa7e47b3)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (751f9504e84e892212aa23308aa4091c20e98651).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ff73b3ec03f79ed0d9dc228ee801ab47497156b4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (619a1ebba2f05fe0d3c1147e9628ec361175bea6)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (58fa94d32c170d0de37ff67508fb9da530c98bba).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e2ee0aa168e5568a22aaf90668359f87b4d60af9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1c5e1606e6c91adeae43d9d5897c8ef108e9dcc4).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

This is a Batteries problem, but unfortunately the Batteries bot has not reported...

[Kim Morrison]

Oh, it's just that the nightly was delayed, and Batteries only attempts to bump once a day.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bdd34c370f2466b303c232fc320ddd7dfaca7c64).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3b1a275d7417006ca5848ae48adf420134ff6944).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5eae4dcb283ac0db0f41f06df2ae8bb0761add4b)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ea429a57f1d4efb65e26f4310ccb93d796878cf1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4083b7d96b03db1ae474536012e2cb629f010422).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b942da74f8bf8d8577e9ecc3ab706343c958d876).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5c7de27570615977f1d1a584a0f695487198d86e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a3bb69909ae946c3659866533005907fbd78eeae).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (12ceac2a5f46d84622214815f6e7e7643a2649d8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (70d69e0b142c8d47d3c2f136ca660b909550cd97).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5c7de27570615977f1d1a584a0f695487198d86e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (75b995cefa6ef6c574af7d822b6ea0ce80975512).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6b28ba204395930a138b9e9151ba8c473ac7d811).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (adf649c0c29e0cd6e16cb77b76c47b4a8a527d07).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5f7473608e12b27d4243ad79486918027c7082dd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (33db31ba3c2834d1dfd1c8df81a5b75532bb6de3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ba17ac8ca5e15fcb115dff6cee13bd19cd08a6ec).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1d3ab40c18504d15b3513643a59b45173464ea3b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e26b4fff7a0f6cf71e6ca0b6e1acbfe09b96dcfa).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e26b4fff7a0f6cf71e6ca0b6e1acbfe09b96dcfa).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fc1556c1688753a0a34cf52a5754dac4f8fce3ca).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab7cf6ecf4c4d8fbb3516e9c6142607095d95169).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0e2ee7f1d8259a7d551213325a07196d54583b6c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3e03c00e7fe7144abcb9c63a66961732e3d57f19).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (74e8a3ebaa0145c600a1d1004633c964f535aa47).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (502b60c32babe32cb62f862d4c88b84c192b20e7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (41fdb023ec82ce52ac3d4201e709b5c8586dc4ca).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (282ec35e38db97ec473e5f3dc9d512ee3ae9e712).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1d9f57a81f6167795d4b62f5ef18954e2c2e156b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab024bba09a1433dacf9d56ddb167a5ce0de0e70).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6df878a61a0077cdfd6d1f0c80c7eec1ef6b39df).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bad4a1ac9f9da887aa78225c295fb2dfa9d3ce20).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (171be8eee8b950b004bcdd12645180e9fd19b972).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Mac Malone this appears to have been broken by your plugins PR lean4#7001. Could you please take a look on Monday?

I may try reverting lean4#7001 this afternoon to see if that fixes the problem.

[Mac Malone]

@Kim Morrison I think I might know what the issue is. I will make a quick PR.

[Mac Malone]

mathlib4#21967

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ca6d4da0ff6cfe9c3e200119dca942a302da5521)

[Kim Morrison]

Thanks @Mac Malone, that seems to have done it!

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ca6d4da0ff6cfe9c3e200119dca942a302da5521)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (981a86e7f2342cd84acac36c2ec4016f87ae54b6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (981a86e7f2342cd84acac36c2ec4016f87ae54b6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1c17407c1e9b10702cd31fec793352ec0ed9ee20).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Okay, the next failure report should be the issue described at #nightly-testing > breakages from leanprover/lean4#7059 , i.e. the expected failures of Mathlib.Computability.PartrecCode and Mathlib.Computability.Tape.

[Kim Morrison]

I would like to just comment out those files until such time as someone has time for Mathlib/Computability, but our current CI setup makes it awkward to do so.

Commenting out the entire files (using /- ... -/: -- produces long lines) means that the style linter checking that everything imports Mathlib.Init fails.

[Kim Morrison]

Is there anything better than comment everything below the copyright header out, and then adding import Mathlib.Init?

[Kim Morrison]

I worry that this is confusing to undo for whoever subsequently fixes the files.

[Damiano Testa]

Some of the linters ignore "import-only files". I thought that the linter that checks for import Mathlib.Init did it as well.

[Damiano Testa]

If not, as seems to be the case, then maybe it should?

[Damiano Testa]

Alternatively, renaming to file to not have lean as an extension and then lake exe mk_all is "too aggressive"?

[Kim Morrison]

Definitely, that would be painful (and confusing) for the maintainers or contributors kindly coming in to help out with nightly-testing!

[Kim Morrison]

I've modified the affected files by adding:

import Mathlib.Init
/-
Broken by https://github.com/leanprover/lean4/pull/7059
Commenting out until a fix is available.
See https://leanprover.zulipchat.com/#narrow/channel/428973-nightly-testing/topic/breakages.20from.20leanprover.2Flean4.237059

below the existing copyright header. Hopefully that is clear enough? (And adding a -/ at the end of the file, except TMToPartrec, which still needs the set_option linter.longFile ... command after the closing -/, sigh.)

[Damiano Testa]

Ok, maybe the longFile linter singles out Mathlib.lean and does not look at it, not because it is import-only, but because it is hard-coded.

[Damiano Testa]

After Kyle fixed the weird interaction between linters and guard_msgs, I have not tried to see if #guard_msgs in #exit actually exits or not. If it does, maybe it is a possible alternative?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8a202d031663be948ea8dee0d7669ff6454f4df1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8a202d031663be948ea8dee0d7669ff6454f4df1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1027a18fb029a2d22e0ca36800e9da75d75fd883)

[Kim Morrison]

(Noting that this is cheating, and ~8 files are commented out still.)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1027a18fb029a2d22e0ca36800e9da75d75fd883)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (447722b3aa730f510a09beea582a6e6ec1b2bd63).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (17ac720528e61e7aadd2b929f415c7bf22419399).
You can git fetch; git checkout nightly-testing and push a fix.

[Mario Carneiro]

Kim Morrison said:

I've modified the affected files by adding:

import Mathlib.Init
/-
Broken by https://github.com/leanprover/lean4/pull/7059
Commenting out until a fix is available.
See https://leanprover.zulipchat.com/#narrow/channel/428973-nightly-testing/topic/breakages.20from.20leanprover.2Flean4.237059

below the existing copyright header. Hopefully that is clear enough? (And adding a -/ at the end of the file, except TMToPartrec, which still needs the set_option linter.longFile ... command after the closing -/, sigh.)

I assume it is sufficient to revert this commit? Or did you comment or stub out other things in other commits

[Mario Carneiro]

One of the reasons I don't really like this kind of thing is because it makes it hard to find the damage later since all the linter stuff that would notice it is being made to look the other way

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a221dba44ae741ff77b01747a9eb0b8a09101bbc).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Mario Carneiro said:

One of the reasons I don't really like this kind of thing is because it makes it hard to find the damage later since all the linter stuff that would notice it is being made to look the other way

No, it was multiple commits as I worked out how to satisfy the linters. In future, I can try to produce cleaner history.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6f90ebd99f9b2de8cbaa9784d6767412e91d804b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (03b816eb74b0af467c721e14fd1524bddb78aa98).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (971ebb0f1bdf5bbee750b354df153b5430bc4dd7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (c5db03bc3823a4bb1c5982e179bf6bcd51cb8d33)

[Mario Carneiro]

@Kim Morrison ping me when the defeq issue is fixed on nightly and I'll return to fixing this

[Mario Carneiro]

oh, I guess this is fixed already with no need for my intervention

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (c5db03bc3823a4bb1c5982e179bf6bcd51cb8d33)

[Kim Morrison]

I suspect I have broken many things with lean#7132, which had stage0 conflicts so I merged before getting a Mathlib test.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (661276889ab41f2e9ce59c23cf96133f7ed9e462).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9d75f595b5f562ce236ec76bd176ea7554966cec).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (7c50f8ced4c4698d6b5fff06a9a3bbad0918687e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (022c5bb1b68fd03195eb7cc2743469be89e2d0aa).
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[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (11dafdf912525bd451817754e52808e9d905b629)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dee71704df89691e3e217c29e9998bca08e19f10).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e48664a7a29f363d1eed2bbc6989f5b486dd01b1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f4084b19bfc93dfa43f54a16be771f883239b9ee).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (82253b6d3ca0b8d565ab45e1a9a10afddb75e18d).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5b1b3d74cdcf3c68e5898413e35b03a896fe55e9).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (31af98b7f5d0adb5681821dc909e9aae757fd312).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8d0660f3c507e19b8e729894cd0be53c2b1c73f5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8d0660f3c507e19b8e729894cd0be53c2b1c73f5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5c838de4ceea51b70e2fc7837fd69f113229cf84).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eb486ffca6a2439b15a8aa1e56dea3eaf0302563).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (abeb840f4a76fa4764d076825b201238d83a20f7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (745dc1a50a9a1a4d8a07ff604cf0ef6c107b78a4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0c390854787ae3a35f9334440bcbf06131a42e79).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f864d0937aa6cd687a7f635b6b9782b9deab69a3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d077be489541992fc5ce3bbe772033719b5fa64d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9751f4aa21122d4cea52d2d67c0b74a8efc4ecf0).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I fixed the ProofWidgets problem by merging https://github.com/leanprover-community/ProofWidgets4/pull/106 and cutting v0.0.52-pre3. There are still some problems because I changed the statement of Nat.succ_div when upstreaming (actually, accidentally rewrote from scratch). I'll change the statement back as I prefer the Mathlib version anyway, but this will leave nightly-testing broken until this evening.

[Kim Morrison]

lean#7199 should resolve the problem.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f9a634b06186b59526875873596c5b3002ed1f47).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5e2e7342a4a0ce726951b40d00a9a4311ba5e447).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (15d6896f929dd73f6c67f73a70bf2d8501bfe201).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Unfortunately nightly-2024-02-24 wasn't cut due to some bad Windows/Lake interaction, so this will stay broken for another day.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f410b48e6f56b9943f4be4c116e130a301d5b4d2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (42e56d74539f652e619ef870f2f518d51eb8342c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e7eb04a071d0a80ce155864cdc72483b6e7c345e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3c36ad8d9c291fd21e8846430561a796f48058ea).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab84c0ea2b6847abd0ab4b91e0703c8dfb4d48e1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab84c0ea2b6847abd0ab4b91e0703c8dfb4d48e1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab84c0ea2b6847abd0ab4b91e0703c8dfb4d48e1).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Pim Otte would you be available to fix the problem in Mathlib.Combinatorics.SimpleGraph.Connectivity.WalkDecomp on the branch nightly-testing? Your PR from #21250 has broken it.

I'll look later if you're not available, but hopefully you're familiar and can fix it quickly.

[Kim Morrison]

Oh, actually, it's relatively easy to fix. Slight change in number of arguments needed in the induction cases, and a minor failure of aesop that I'm just going to turn into an #adaptation_note.

[Kim Morrison]

@Jannis Limperg, if you wanted to look into why aesop is failing in that file on nightly-testing, that might be interesting? But not urgent.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab84c0ea2b6847abd0ab4b91e0703c8dfb4d48e1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab84c0ea2b6847abd0ab4b91e0703c8dfb4d48e1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b75d09c3757f634b666e4b51874054483aa6bf56).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b75d09c3757f634b666e4b51874054483aa6bf56).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (2bfa3eb705b0fe9d6cdc11f91f728f66b1720dd5)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (86a0f0103e5c950ac0393a7afebd5f1399fc7f55).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6d33eaf659620a8f914d9c9489dad0d27be88610).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c67469e39b41cc74773da68a763c281f17ef99d2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6760fb9ea118f04f766dea26e5f61f90fcc38cd9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (babf9a897ee32554a8aeb3d3cef39103ecfbf6eb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (aee605ae2774b6eff7380605c8d1deeb97f50e52).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Big merge conflict on Mathlib/Data/Multiset/Basic.lean, I'll just reset it to master and try to reconstruct fixes.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a429f616174b54dc85e0154c84bb2d46879e70ab)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d6d30b237e057d99c7287ff67fbe7dfa629f17b1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (514991a14eea12ccac3a18f4d7bce8f8d4a4ee75).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (215e9c6293496e3cccee65b4f66ebdc22c8ad728).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ae7f5ae7147da1bc1fa7c7ad714ba0bb69edfe3f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b4e9bce0fef2e8ca5f6bd605fd7286b0eed93782).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5909c29b9f0edc1481ee81468643960fd939de01).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5909c29b9f0edc1481ee81468643960fd939de01).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (aaaee1505b7ad5fa5afb79aeb30a7d71d4f9c7f5)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (945c66e068c4e874261a90232fe9e5e35975c258)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2dccc4bdfd7c8a2eb1d6d00e154c6504cb1158d4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2dccc4bdfd7c8a2eb1d6d00e154c6504cb1158d4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c79faca1f2a068da579ab761d17f06fa19e8173e).
You can git fetch; git checkout nightly-testing and push a fix.

[Jannis Limperg]

Kim Morrison said:

Jannis Limperg, if you wanted to look into why aesop is failing in that file on nightly-testing, that might be interesting? But not urgent.

What's the relevant file here (if the issue is still current)?

[Kevin Buzzard]

I think this was #22334 and the issue was explicitly raised here and you've already seen it.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7b186b7632d2dfa423646963e7227a68871a23c8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (11100128fea213a315f2b4a4bd98e9b8ff1b2057).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (75362b3987c7c0019db82c9ed145f47d23ab9800).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5aee0a154d404a5a1aa14f3687c1a1d0d7cb9a46)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fb85dc4d9b1b2228454595ca243ef3314098035a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2626910042c837ed53e1a8080cbcbdb514b7a2fb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f4f685a6111f1bb8a4489ccef4202b17b99fe1fd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7fd64f5286d24f19faea943e8d19625ff38a645c).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b5719fa2d64079a651f93b3784977a297a618478).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (05c75f88e308a9835e4b8b41e3228c1af58c9ae2).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (05c75f88e308a9835e4b8b41e3228c1af58c9ae2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f77cdc2ac5bc49894441dc437e08ae4d40f3271a)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3f72c0fe935cdf098015a701e7373b47ba8f044a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (39688c3aef0cbc145c18a63cade521e336acbe67).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cf215ba599681bc3777bbe0f61a7d61bd3b5a327).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5ac57f40bfaa4629b7f8dff4c18f2a40340745b5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f77cdc2ac5bc49894441dc437e08ae4d40f3271a)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (95c78f355f66ad3bdc174500d7b9824dd73cf14b).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Okay, this is looking good locally, so once CI catches up nightly-2025-03-03 will become v4.18.0-rc1

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (25e831ed30f19e534c0e14ca2ba8c5a785e7711f)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b6520862beeef981cf659ed2ed11192dff0d9ad8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b6520862beeef981cf659ed2ed11192dff0d9ad8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b6520862beeef981cf659ed2ed11192dff0d9ad8).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Uhuh, nightly-testing is borked, and I don't immediately see what caused it.

There are lots of errors, e.g. on lines like

variable {C : Type u} [Category.{v} C] {X Y Z : C}

we get

invalid binder annotation, type is not a class instance
  Category C

that ... maybe ... are due to @Kyle Miller's structure elaboration changes?

But there are also consequences of parallelism changes landing, e.g.

(kernel) constant has already been declared 'Mathlib.Order.Disjoint._auxLemma.1'

all over the place.

[Kim Morrison]

@Sebastian Ullrich

[Kim Morrison]

We may need to revert some commits and proceed more slowly with them, working out the Mathlib adaptations as we go.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b6520862beeef981cf659ed2ed11192dff0d9ad8).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

@Kim Morrison Thanks for tagging me. Let me see if I can disable the problematic behavior with an option for now.

[Sebastian Ullrich]

All prior changes somehow not breaking mathlib must have made me too complacent!

[Sebastian Ullrich]

Here is a minimization of the first issue (same root cause), likely caused by Aesop using Replay, which I assumed was used only in lean4checker :grimacing:

import Aesop

class Bifunctor where

theorem t : True := by aesop

open Bifunctor  -- unknown namespace 'Bifunctor'

[Kim Morrison]

Yes, I'd forgotten Aesop used it too... :-(

[Sebastian Ullrich]

lean#7327 is the minimal revert that fixes Mathlib for me locally. I'm actually not sure how I'd convince the bot to run Mathlib CI on it... I guess I can do it manually once the toolchain exists.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f1bcadd1f2bb82972b0557969f08e5f77b247161).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

https://github.com/leanprover-community/mathlib4/actions/runs/13653728073/job/38167927946 has passed except for the deprecation warning in Aesop. @Kim Morrison @Johan Commelin What should we do here, revert the deprecation, add an ignore to Aesop, do this before or after merging this PR, ...?

[Johan Commelin]

I guess the easiest thing is to briefly revert the deprecation

[Johan Commelin]

Then, once we have everything up and running again, we proceed via the usual nightly-testing update cycles.

[Sebastian Ullrich]

And this after I manually unreverted the deprecation from the revert commit :grinning: ... (I didn't think about it making the build fail). SGTM!

[Sebastian Ullrich]

I faintly remember some prior discussion that warnings in dependencies shouldn't be fatal...?

[Sebastian Ullrich]

Also while we're at it, could we get a lean4 label "please just run Mathlib on this PR's toolchain even though it's not based on nightly-with-mathlib, I accept that failures may come from changes landed in between"?

[Sebastian Ullrich]

I've queued lean#7327 with the full revert

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cdc8210ed5af5de9a751a9cd68417c6b66f73016).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (82bee845872d75a660b2c236ce38f9b8ba348932).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (66201572ec628f40851f0e7a66b8b37a0114bd20).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Sebastian Ullrich said:

Also while we're at it, could we get a lean4 label "please just run Mathlib on this PR's toolchain even though it's not based on nightly-with-mathlib, I accept that failures may come from changes landed in between"?

This is done (untested!) in

feat: force-mathlib-ci label lean#7337

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3ec11919dafdb1e387d179bb32443f304894b14e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6cd25d22eb5167aadcfc5b3ba983d8145751abad).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c8c1429f3c89e3a9c1a01dfe9a839884f41aebad).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Not my fault!

[Sebastian Ullrich]

Kim Morrison said:

Sebastian Ullrich said:

Also while we're at it, could we get a lean4 label "please just run Mathlib on this PR's toolchain even though it's not based on nightly-with-mathlib, I accept that failures may come from changes landed in between"?

This is done (untested!) in

feat: force-mathlib-ci label lean#7337

Small follow-up: lean#7342

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a69bc35b7028de551fb3c101d72f5ddbef2a6b2d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a69bc35b7028de551fb3c101d72f5ddbef2a6b2d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (19e565f28586cfabfa4b33ac0960048ab95497d8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (47782bc260a0a7b85099d1aaaabd290aa9e8c5e1).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

I've almost fixed it, but interrupted by meeting

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1fb7412a49749178a1aa78376901054bc7b7d5b4).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

Pushed a fix, hopefully we get a :check: soon

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (dc26fc02df4023439f1359ce63a1b7c2ed6cc79d)

[Sebastian Ullrich]

@Johan Commelin I'm still a bit confused about the setup, what's left here for nightly-with-mathlib to advance?

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (769e5739ce63a2ec8970b115f09c02cdf8255cda)

[Kim Morrison]

@Sebastian Ullrich, nightly-with-mathlib should update automatically at about the same time one of these :check: messages appears. At least right now it all looks correct (nightly-with-mathlib = nightly-2025-03-06).

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (769e5739ce63a2ec8970b115f09c02cdf8255cda)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (708ea06c33feeced7befb2cc175aa048852df2ab).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

(fix on lean-pr-testing-7261)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6fcd9b0336604518bd58d639039886e58cbbe5a2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (47faa13049950bc302bfdccb6bf0eff3dee0b589).
You can git fetch; git checkout nightly-testing and push a fix.

[Joachim Breitner]

Still getting

 ✖ [4011/6321] Building Mathlib.Data.Nat.ModEq
trace: .> LEAN_PATH=././.lake/packages/Cli/.lake/build/lib/lean:././.lake/packages/batteries/.lake/build/lib/lean:././.lake/packages/Qq/.lake/build/lib/lean:././.lake/packages/aesop/.lake/build/lib/lean:././.lake/packages/proofwidgets/.lake/build/lib/lean:././.lake/packages/importGraph/.lake/build/lib/lean:././.lake/packages/LeanSearchClient/.lake/build/lib/lean:././.lake/packages/plausible/.lake/build/lib/lean:././.lake/build/lib/lean /home/lean/.elan/toolchains/leanprover--lean4---nightly-2025-03-07/bin/lean -Dpp.unicode.fun=true -DautoImplicit=false -DmaxSynthPendingDepth=3 -Dweak.linter.docPrime=false -Dweak.linter.hashCommand=true -Dweak.linter.oldObtain=true -Dweak.linter.refine=true -Dweak.linter.style.cdot=true -Dweak.linter.style.dollarSyntax=true -Dweak.linter.style.header=true -Dweak.linter.style.lambdaSyntax=true -Dweak.linter.style.longLine=true -Dweak.linter.style.longFile=1500 -Dweak.linter.style.missingEnd=true -Dweak.linter.style.multiGoal=true -Dweak.linter.style.setOption=true ././././Mathlib/Data/Nat/ModEq.lean -R ./././. -o ././.lake/build/lib/lean/Mathlib/Data/Nat/ModEq.olean -i ././.lake/build/lib/lean/Mathlib/Data/Nat/ModEq.ilean -c ././.lake/build/ir/Mathlib/Data/Nat/ModEq.c --json
error: ././././Mathlib/Data/Nat/ModEq.lean:388:14: unknown identifier 'add_div'
error: ././././Mathlib/Data/Nat/ModEq.lean:388:7: unsolved goals
a b c : ℕ
hc : a % c + b % c < c
hc0 : ¬c = 0
⊢ (a + b) / c = a / c + b / c
error: ././././Mathlib/Data/Nat/ModEq.lean:402:46: unknown identifier 'add_div'
error: ././././Mathlib/Data/Nat/ModEq.lean:402:39: unsolved goals
a b c : ℕ
hc : c ≤ a % c + b % c
hc0 : 0 < c
⊢ (a + b) / c = a / c + b / c + 1
error: Lean exited with code 1
Some required builds logged failures:
- Mathlib.Data.Nat.ModEq

Pushed a possible fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (062d4014b715b18f58ad03a61aac66fa9b2e0c8a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (062d4014b715b18f58ad03a61aac66fa9b2e0c8a).
You can git fetch; git checkout nightly-testing and push a fix.

[Joachim Breitner]

error: ././././Mathlib/RingTheory/Etale/Kaehler.lean:260:9: tactic 'simp' failed, nested error:
(deterministic) timeout at `isDefEq`, maximum number of heartbeats (200000) has been reached
Use `set_option maxHeartbeats <num>` to set the limit.

:-(. I'll let someone else investigate.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (71c053b52b54091905c34735bff35f3ea1952ec8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7b4a09d2102c2eae2457af54dfcb57a51e99c5e0).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

I had this failure before, in the second-to-last Mathlib run of #7306. I was in fact missing a significant optimization there that then fixed the timeout but we may already have been very close to the heartbeat limit.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7b4a09d2102c2eae2457af54dfcb57a51e99c5e0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7590675dfaa93de9844d39fe9c13106c327456e0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b764a7e13144f807222716ea4e59bdcfecbdd5e9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1a7567c33383f8e9615432a71764b63e75bedcd3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1a7567c33383f8e9615432a71764b63e75bedcd3).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Error: ././././Mathlib/RingTheory/LocalRing/ResidueField/Ideal.lean:52:1: error: @Ideal.algebraMap_residueField_eq_zero LINTER FAILED:
simplify fails on left-hand side:
failed to synthesize
  FaithfulSMul R I.ResidueField
(deterministic) timeout at `typeclass`, maximum number of heartbeats (20000) has been reached

How concerning is that error, how easy is it to extract so I can debug it, how easy is it to work around it? I am currently very interested in steady nightly-with-mathlib bumps :)

[Sebastian Ullrich]

(but also as it happens very late, I'm happy to move forward by manually checking I don't introduce any earlier errors)

[Kevin Buzzard]

Did you try just bumping the heartbeats? This might just be something that was tipped over a timeout limit

[Sebastian Ullrich]

I don't know how to do that in that linter

[Kevin Buzzard]

FWIW the thing it's failing to synthesize is false

[Kevin Buzzard]

I guess you could just do @[simp, nolint simpNF] for now if you want a cheap workaround? (this pattern seems to occur 100 or so times in mathlib right now). It looks like a fine simp lemma to me, as you can see the linter isn't failing because it's a bad simp lemma, it's failing because typeclass inference isn't failing quickly enough for some reason. Can you or someone else remind me how to run the linter on this declaration so I can try and see what typeclass inference is doing? Linters are not usually a part of my life.

import Mathlib

#check Ideal.algebraMap_residueField_eq_zero

-- I now want to emulate what the`simpNF` linter does when checking that this declaration is OK

[Kevin Buzzard]

I don't understand how to see this error locally:

import Mathlib

#check Ideal.algebraMap_residueField_eq_zero

#lint only simpNF -- works for me on `nightly-testing`

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b5f64a74473714468ab3eedd7c5d541aa404e6ab).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e57f8bcdcdcfa30a17b98943553eb60b93b86462).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c30d062e171b74fc1b45e6ebb6fe2e519adc37d3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (02a95579e1f4019008bc071284372d1a13f41004).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f8f22d77ccc4ec01b7b8eabee793576d59838c06).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f8f22d77ccc4ec01b7b8eabee793576d59838c06).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fbe595fc740ee7a1789c6e6ebefa322e054a41c0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e9ada999b476e5d6c145a0f81799500f20714209).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (40a8beb29d3de17bd5b7c7adac652eb57fe60e52).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2c48e6c5e5e440e02eceaf7fba44004d0f95f97d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (182acfb6bb259564c7d2b4611ea21ac5460dbb08).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (63a7be57d4c98d1a8df636cc6b645c121dc5c94c).
You can git fetch; git checkout nightly-testing and push a fix.

[Jovan Gerbscheid]

I've added a fix for the simpNF timeout here: #22753

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7bc8f1592591c2c90e8af6fecf540bbdc3c57a42).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

@Jovan Gerbscheid Thanks, I cherry-picked it

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (21ebdb2ad2d0096a136ba23ec43ffa98f68f0962)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f946d24de494227fcbef6ed1a73b5f4a8bde1bb1)

[Matthew Ballard]

I actually got a little time to look at this timeout.

First, @Kevin Buzzard , to recreate

import Mathlib

variable {R : Type u_1}  [CommRing R]  {I : Ideal R}  [I.IsPrime]  {x : R}

example : (algebraMap R I.ResidueField) x = 0 ↔ x ∈ I := by simp

Some more automation around this would be nice. How much information can be in simpNF or in batteries? Even just have a expand_to_example% which produces the two last lines (maybe with a sorry) and supports replacing via a code action would be nice.

While @Jovan Gerbscheid 's fix side-steps the underlying issue, you can see from timing synthesis problems like Finite R I (I deleted my scratch code so might be slightly off from memory) takes a quite a bit of time.

I did find some low-lying problems which I will PR momentarily.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f946d24de494227fcbef6ed1a73b5f4a8bde1bb1)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (00d98b7f59e62aafcf9356987d6db7d75f0d8c59).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3dec5e5b2c10a00f75c5c13fbb34c8514473b3f8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3dec5e5b2c10a00f75c5c13fbb34c8514473b3f8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f946d24de494227fcbef6ed1a73b5f4a8bde1bb1)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a75783f538090ee16c118d9583f3e5576a17cd7d)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d8118779ef2b2a598d6faa29f73849521b5a3665).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3f061f51a223a85156efa61ae26e11b3ba32d89a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7d0d31ed071ec4b23219de57e49d24024d06e6ef).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b264b11f9193bcda26faaeac5edec4d4f6aa65d5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7ec05b96a6218a15a580c2e4c7f1bf18dbb91a55).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7ec05b96a6218a15a580c2e4c7f1bf18dbb91a55).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bb749e53d0aee387fb458be7a348963e03f56702).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bb749e53d0aee387fb458be7a348963e03f56702).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (241c1c00e575745dd020c4b1dfa11ce70ac6dcfd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b4514b844977cfb75bdd82655141590f2ca84146).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Sebastian Ullrich

✖ [2669/2671] Building Counterexamples.AharoniKorman
trace: .> LEAN_PATH=././.lake/packages/Cli/.lake/build/lib/lean:././.lake/packages/batteries/.lake/build/lib/lean:././.lake/packages/Qq/.lake/build/lib/lean:././.lake/packages/aesop/.lake/build/lib/lean:././.lake/packages/proofwidgets/.lake/build/lib/lean:././.lake/packages/importGraph/.lake/build/lib/lean:././.lake/packages/LeanSearchClient/.lake/build/lib/lean:././.lake/packages/plausible/.lake/build/lib/lean:././.lake/build/lib/lean /home/lean/.elan/toolchains/leanprover--lean4---nightly-2025-03-12/bin/lean -Dpp.unicode.fun=true -DautoImplicit=false -DmaxSynthPendingDepth=3 -Dweak.linter.docPrime=false -Dweak.linter.hashCommand=true -Dweak.linter.oldObtain=true -Dweak.linter.refine=true -Dweak.linter.style.cdot=true -Dweak.linter.style.docString=true -Dweak.linter.style.dollarSyntax=true -Dweak.linter.style.header=true -Dweak.linter.style.lambdaSyntax=true -Dweak.linter.style.longLine=true -Dweak.linter.style.longFile=1500 -Dweak.linter.style.missingEnd=true -Dweak.linter.style.multiGoal=true -Dweak.linter.style.setOption=true ././././Counterexamples/AharoniKorman.lean -R ./././. -o ././.lake/build/lib/lean/Counterexamples/AharoniKorman.olean -i ././.lake/build/lib/lean/Counterexamples/AharoniKorman.ilean -c ././.lake/build/ir/Counterexamples/AharoniKorman.c --json
error: ././././Counterexamples/AharoniKorman.lean:600:6: (kernel) unknown constant '_private.Counterexamples.AharoniKorman.0.aux_4'
error: ././././Counterexamples/AharoniKorman.lean:631:49: unknown identifier 'chainBetween_subset'
error: ././././Counterexamples/AharoniKorman.lean:712:12: unknown identifier 'chainBetween_subset.trans'
error: ././././Counterexamples/AharoniKorman.lean:712:42: unknown identifier 'chainBetween_subset.trans'
error: ././././Counterexamples/AharoniKorman.lean:713:4: no goals to be solved
error: ././././Counterexamples/AharoniKorman.lean:746:53: unknown identifier 'chainBetween_subset'
error: ././././Counterexamples/AharoniKorman.lean:750:61: unknown identifier 'chainBetween_subset'
error: ././././Counterexamples/AharoniKorman.lean:746:53: unknown identifier 'chainBetween_subset'
error: ././././Counterexamples/AharoniKorman.lean:750:61: unknown identifier 'chainBetween_subset'
error: ././././Counterexamples/AharoniKorman.lean:1160:66: unknown identifier 'chainBetween_subset'
error: Lean exited with code 1
Some required builds logged failures:
- Counterexamples.AharoniKorman

this looks like fallout from lean#7334.

[Kim Morrison]

(Noting this file was added to Mathlib since the lean-pr-testing-7334 branch. Unfortunate timing! :-)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3d3450d07cf30b50e25e716277fb3381203cc3c0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0b9bf05f3a1f9ae5a35c26127cc6bd94d0692d31).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Thanks, likely addressed by #7468. Let's see if the new awaiting-mathlib works.

[Johan Commelin]

lean4#7468, I guess

[Kim Morrison]

@Sebastian Ullrich, this doesn't seem to have fixed the problem: https://github.com/leanprover-community/mathlib4/actions/runs/13830537191/job/38693617032

[Sebastian Ullrich]

Yes :( . Must be some fun new aesop edge case.

[Kim Morrison]

This feels like one of those brain surgeries where you need the patient awake in order to be able to tell you what they experience as you poke stuff...

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6bc8904b57469119759a2455637235bfde44c0db).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

@Joachim Breitner I think this is actually your bug! You taught omega to create helper decls but as aesop uses independent branches with independent environments during proof search, they all end up with the same name and clash. Oh but there's also a bug of mine in there. /cc @Jannis Limperg

[Sebastian Ullrich]

IOW, Aesop is incompatible with Term.mkAuxName, which does have a few users
image.png

[Sebastian Ullrich]

lean#7472 is my part

[Sebastian Ullrich]

@Kim Morrison @Johan Commelin As Joachim is traveling for the rest of the week and we wouldn't like to revert his omega optimizations anyway, can we instead (temporarily) ban uses of omega in aesop, e.g. by ignoring this file on nightly-testing?

[Kim Morrison]

Sounds good to me. I've commented out the file on nightly-testing, explaining why.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (759a343fcbe32736f2daf14cabc24daebc9f5a25)

[Bhavik Mehta]

Ah, and I felt so clever for putting omega into aesop here! Sorry about this, I can try to look into expanding the aesop proofs if it could be helpful

[Kim Morrison]

No, we'll work out how to support this. It's a reasonable use case.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (759a343fcbe32736f2daf14cabc24daebc9f5a25)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c9d2c019972c9e3ea71c05f73ca58509dcfeb929).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c9d2c019972c9e3ea71c05f73ca58509dcfeb929).
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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (561c554d22db2729782b18be032ec89b74d3aef4).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

All but ProofWidgets fixed!

[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cf8a78f5098134de16ff6ab7cd128cd2ab3e3bca).
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[Kim Morrison]

Hmm... not sure what is going on here in nightly-testing. There is a universe problem in docs#Condensed.hasExactColimitsOfShape, but I don't yet see what has changed that could cause it.

[Kim Morrison]

Pinging @Dagur Asgeirsson in case he can see what is wrong on nightly-testing in this file?

[github mathlib4 bot]

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[Sebastian Ullrich]

@Kim Morrison It's the new restriction we talked about, fixed on 7485

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (896c41d5344c32d8a98a043dccfd27aa7db7bc31).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (896c41d5344c32d8a98a043dccfd27aa7db7bc31).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

lean#7485

[Sebastian Ullrich]

Oh, I guess I missed some test failures

[Kim Morrison]

(I've just been looking)

[Kim Morrison]

Two of them are just messages coming in a different order.

[Kim Morrison]

Okay I guess?

[Sebastian Ullrich]

Yeah, looks benign

[Sebastian Ullrich]

The ordering is deterministic at least, just different now

[Kim Morrison]

The error in MathlibTest.StacksAttribute disappears if we set_option Elab.async false, but I'm not sure what the right fix is. Should run_cmd do this internally?

[Sebastian Ullrich]

I'll take a look, on my phone atm

[Kim Morrison]

MathlibTest/eqns.lean ... eqns just seems scary with parallelism!

[Sebastian Ullrich]

Hmm, it looks like only that specific sanity check is broken. We'd have to wait on all prior tasks in order to implement it correctly, in which case it might be better to drop it?

[Damiano Testa]

As for Stacks, maybe the issue is that the same file adds a declaration with the stacks attribute and checks that the declaration has been added to the relevant environment extension. Maybe the check that the declaration is in the extension happens before the declaration has had a chance of being added to the environment?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (aeb47dbc742b827ac76eeb129024164fb0a3eaf5).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

I pushed a fix for the stacks attribute

[Sebastian Ullrich]

@Kim Morrison You were right, eqns is totally borked now! Equation generation for n is now more deterministic because it only considers the environment just after n was declared. But of course it is not possible to have a custom equation theorem for n ready at that point

[Dagur Asgeirsson]

I see you have fixed (worked around?) the errors in the condensed files. Is the issue that the universes of two terms of type Type*are unified in the proof? Is it better to declare their universes explicitly if they're supposed to be different?

[Sebastian Ullrich]

Yes, that would be ideal I think!

[Sebastian Ullrich]

Note: the equation theorem in the test file must have been broken for a while on nightly-testing. It turns out the test still passes with it commented out.

[Sebastian Ullrich]

I've committed the broken test output for now to move forward /cc @Eric Wieser

[github mathlib4 bot]

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[Kevin Buzzard]

Elab.async one step closer!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bdf308ca17a6c2fae2c96b97393cadae10dbaae9).
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[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (0b0ab2589bbb44452061502e9cb849837c9c25d2)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eab98761167237d45662033394ebd5ee28613aac).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eab98761167237d45662033394ebd5ee28613aac).
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[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (96f29be0737b9f7d8c6bf45d2fc555098fdfd743).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d22bd4f990c36ec29867ef381dc67f43c3d40520).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4d4e085b7b6dc6611a76abfaf1a670768d43e500).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f1a5be535d23e5ecdf7ea79c2b992b0a885c6568).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ccef7686f4018a0b3b2ff152eafc7847a339d542).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (609bae754789c3d933632e304f217bbdd6ef1efb).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (345037212607a4b992e19bd7ab8c753387b57f2d).
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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b266c88eaaff9448445982628b6814ef2f94a7df)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (67019e0bbfaccd3af41e6f73024551c6e80ad2d4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (67019e0bbfaccd3af41e6f73024551c6e80ad2d4).
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[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (bfb212af9d68914d3bcc24b863982969d89d861b)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2ad02e6d6419f8abdafcaffafada59cb54f5175b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (88f302b1740f7ff57d9037e7f02b45049bcff58c).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bcaf02fadadb12180d9e38bc13b4036230c2f8c6).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (61c8f96c19c529532f1650e255558d75561c7d28).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1809290af1237825991a63be10682cc327aec7d5).
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[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (390f4edd30d68d493e6b38527f2a73646aa30293)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d7c024f0292e801365f36c1ab2ba2ee2da009e32).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6925c7e1b5932ad33cf868822fa25d048b2d2d9e).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9bbdf45da08425e91c080c63920b48533fe2f594).
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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (7c56b4c877c1b368d8b76a9bafa5ecbcaf0a43b2)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a1bb21e46be5808a61489d472fcf6538d297e7c9).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (20c260b92867bf530bb611360824ea31b6906d02).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eb9b70720b0adbffd6a55010f2bed3ef593bef3c).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a4da278bf7e2eb4701117e21a87c2a16007e656b).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (61d602d9afcf8ce50f9ad0426f52b3f13ec9fe5c).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ae6fafc73f476ce66d1d3257d04f758fa1e25a93).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eab25444d0e0876a8a80fede02da98a761266d48).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (40de6ff425a9b85795171505195c7d547fbaecb8).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (195ac92a5ce4656318c1e78ca1bd39da30bd1715).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (df882075248003a227363d639e2fb53b5a3c658d).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ff7c9298d1d2633e5104a9c3577b14437f526039).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ff7c9298d1d2633e5104a9c3577b14437f526039).
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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (0336b0207f74597b520457c4de723c3bad571a2c)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c441f7b6964d8337ba5a736403f696aa24afe072).
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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (0336b0207f74597b520457c4de723c3bad571a2c)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d499abdf5a10c078627f8bd4fd58f0c680d64019).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d499abdf5a10c078627f8bd4fd58f0c680d64019).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f3baa493991af10fc9896c8ac834e9a484da3da7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f3baa493991af10fc9896c8ac834e9a484da3da7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6995c4c3b4ab7565955e9e9bc202ca07a3ed7f7a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (689ff66332639ec77b017dc0c24c5c8721c91d79).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

Was https://github.com/leanprover-community/mathlib4/commit/6027e36a6252bf64cd76df86c50dda184e7d31d4#diff-eee30c5d524ebf27d1bd42a6128196f01b7eee44d8286e352d885c5a1afc5209L315 a by exact? fix @Kim Morrison ? That ended up changing the signature and making an impossible instance. Pushed a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1ebd64f226d2bbb857698fc31efaeb9b72a2b1d1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (98c6231f61d24a768245c3a0719e3d617c198f13).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e7f18a305a91a997d0b68d407e433b78ea51d60a)

[Kim Morrison]

Kyle Miller said:

Was https://github.com/leanprover-community/mathlib4/commit/6027e36a6252bf64cd76df86c50dda184e7d31d4#diff-eee30c5d524ebf27d1bd42a6128196f01b7eee44d8286e352d885c5a1afc5209L315 a by exact? fix Kim Morrison ? That ended up changing the signature and making an impossible instance. Pushed a fix.

Oops, my fault, but I don't remember what I was doing. Thanks for catching this one.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e7f18a305a91a997d0b68d407e433b78ea51d60a)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5aab19e80b3649cc8fe899f46cbacafa341877ac).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6e04344033ed5a6b2eb4582fa713e56c473994de).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f832b4494a6dfb53a644216142b0a0eea21d2d66).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2ff7d06e7a6789eef7a2c1e755ec7ce70f0107bc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3cd8962b3f158a8f957d8d2e81662ee09e5cd286).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

It seems to be some simp/aesop timeouts. One timeout I fixed by adding in a dsimp only. (I think we'll be able to remove that one in one of the next nightlies.)

Concerningly, one of the failing cases causes dsimp only to time out if I try adding it.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b3fa3dd1f39fbef29e5ebbe0271df54005c1bbc3).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I've just added maxHeartbeats 400000 to the three places still failing, for now.

[Kim Morrison]

@Yaël Dillies, but you be able to look at ChevalleyThm.PolynomialC.induction_aux in your newly added ChevallyComplexity.lean file, on nightly-testing, and see if you can either just get it back down under the heartbeats limit, or localize to any extent what has slowed down?

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ed4fcfffeca0d59158ff44e2aa842d4709ff446b)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8c625a214da99ac4a231481ea7e15d224345407c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8c625a214da99ac4a231481ea7e15d224345407c).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Batteries and Aesop needed some fixes for lean#7679.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b97db3eddf5a50dd47937cfd4018ba7661ce9cf1).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Sad, more maxHeartbeats on nightly-2025-03-26, it seems. :-(

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (80bca22cca4fab91f21d7b53b9185b61b4244da7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cc40bfec1047f8c40fb3856921406f69431a735e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (97f8d3677882d02cebb2af67bb45c31a501f6b3a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9b6525099e2a2ec55700b17e01012ff7c1c95de7).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Separately from this issue, there are a number of new slow-downs on nightly-testing under nightly-2025-03-26. All of them seem to be aesop calls. You can find these by looking for /-- Requires more heartbeats after nightly-2025-03-26. -/ on nightly-testing.

The relevant change in Aesop is:

% git diff 30671eb0eca7678572c74fd0c798e443b00dc259
diff --git a/Aesop/Util/Tactic/Unfold.lean b/Aesop/Util/Tactic/Unfold.lean
index 2183355..a32f44d 100644
--- a/Aesop/Util/Tactic/Unfold.lean
+++ b/Aesop/Util/Tactic/Unfold.lean
@@ -50,7 +50,7 @@ where
         Simp.tryTheorem? e
           { origin := .decl unfoldThm
             proof := mkConst unfoldThm
-            rfl := ← isRflTheorem unfoldThm }
+            rflTask := ← isRflTheorem unfoldThm }
       match result? with
       | none   => return .continue
       | some r =>
diff --git a/lean-toolchain b/lean-toolchain
index ab5f1f6..5b70d13 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2025-03-25
+leanprover/lean4:nightly-2025-03-26

which is adapting (possibly incorrectly) to @Sebastian Ullrich's lean#7679.

Pinging also @Jannis Limperg.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c66c94d8c525d7da0f6c199ffc6968b7c992029c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c66c94d8c525d7da0f6c199ffc6968b7c992029c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f67208eb8713418887cd9e6e9e0a342a6c50ba98).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4e2055c27e7a1c05925f7a89b58e758750ea0e84).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

For the slowdowns it would be good to know if these are purely heartbeats or wall clock as well

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0d97ff349103148789c8d8c9d8793852f5c475bd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0d97ff349103148789c8d8c9d8793852f5c475bd).
You can git fetch; git checkout nightly-testing and push a fix.

[Yaël Dillies]

Kim Morrison said:

Yaël Dillies, but you be able to look at ChevalleyThm.PolynomialC.induction_aux in your newly added ChevallyComplexity.lean file, on nightly-testing, and see if you can either just get it back down under the heartbeats limit, or localize to any extent what has slowed down?

I will try looking today but no promise I'll get to it

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e50e0918c715bdd03e268b42428b4415db151c19).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Kim Morrison said:

Separately from this issue, there are a number of new slow-downs on nightly-testing under nightly-2025-03-26. All of them seem to be aesop calls. You can find these by looking for /-- Requires more heartbeats after nightly-2025-03-26. -/ on nightly-testing.

and unfortunately there are even more, and more severe, slow-downs on nightly-2025-03-27. Sebastian and I are starting to profile the worst of these now.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (eff9da572aaa6b532c82a3994deceb722cd92cb5).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Here are before and after profiler results from docs#CommRingCat.monoidAlgebraAdj.

simps use of isDefEq has hugely blown out.

[Sebastian Ullrich]

attribute [-simp]
  Std.DTreeMap.Const.compare_maxKey_modify_eq
  Std.DTreeMap.Const.compare_maxKey!_modify_eq
  Std.DTreeMap.Const.compare_minKey_modify_eq
  Std.DTreeMap.Const.compare_minKey!_modify_eq
  Std.DTreeMap.Const.compare_minKeyD_modify_eq
  Std.TreeMap.compare_minKey_modify_eq
  Std.TreeMap.compare_minKey!_modify_eq
  Std.TreeMap.compare_minKeyD_modify_eq
  Std.TreeMap.compare_maxKey_modify_eq
  Std.TreeMap.compare_maxKey!_modify_eq

makes it fast again /cc @Paul Reichert

[Kim Morrison]

Was just about to report that reverting lean#7679 hasn't helped.

[Kim Morrison]

Oops, metavariables in the head of the LHS, that'll do it. Past time for the linter...

[Paul Reichert]

Thanks for the hint and sorry, I'll create a PR to remove these simps and will come up with a PR in a few minutes. Perhaps I'll need to find a good way to state these such that they have a better discrimination pattern (perhaps by providing separate Ord-based lemmas).

[Paul Reichert]

Update: It's https://github.com/leanprover/lean4/pull/7695.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (da234f8458226fa9e16cc2ae348dcdc2b30e87db).
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[Notification Bot]

A message was moved from this topic to #nightly-testing > 2025-3-27: segfaults in leangz by Mario Carneiro.

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d6403f93fe8f0ab25df87ce14052b4f9e8c3bd02).
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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6068fa5b912ad07be32404d398eca17cc7b31c32).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6068fa5b912ad07be32404d398eca17cc7b31c32).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6068fa5b912ad07be32404d398eca17cc7b31c32).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0beb5de959a3105ab2704176357b3022586321e6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f1c3d6132e587183ea9ac44e4c529dfff1e24e36).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f1c3d6132e587183ea9ac44e4c529dfff1e24e36).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (90f577e8a58c5dfb106c4657e4d34df71dfbe84c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (90f577e8a58c5dfb106c4657e4d34df71dfbe84c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (90f577e8a58c5dfb106c4657e4d34df71dfbe84c).
You can git fetch; git checkout nightly-testing and push a fix.

[Mario Carneiro]

cache success!

[Mario Carneiro]

the remaining issues have been left as an exercise for the reader

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (96e12f2dcc230d69e167e93a9e12a909887f9c9e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (de25915c5fb885ce202ae2914aec995ffb41102a).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

Mario Carneiro said:

the remaining issues have been left as an exercise for the reader

I'm working on those exercises now (-;

[Johan Commelin]

Looks like it will be a 1-line fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fbcec6386d71e9e7406cb3572b197786bc5b741f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fbcec6386d71e9e7406cb3572b197786bc5b741f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fbcec6386d71e9e7406cb3572b197786bc5b741f).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I've just confirmed locally that we can remove all the new maxHeartbeats, now that the bad simp lemmas have been removed, and hopefully nightly-testing should come green soon. :fingers_crossed:

[Yaël Dillies]

Does that mean I don't need to look at Chevalley anymore?

[Kim Morrison]

Ah, yes, you don't need to look at that anymore! Thanks for asking!

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (07234560b588005c159bd00a0e81e7546f924ce4)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8bd5208c5bee1a2aceb7dc0c921a209382b64404).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b4e2ffb295eb3110e852499f3318c9ffc0d0271d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a1b8d7845467111b2d9206691d54947917deaac9)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ab98a3ffaa98586009f793bbdd18d80d6ecc5d79)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4be83ef567b3cdbe4fe940b36e6ada3d2ffb4410).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ab98a3ffaa98586009f793bbdd18d80d6ecc5d79)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ca1ee28af09a31031159dcade8cd94f3a35492f2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (44a2fd5edc38e4760b008956991d62cb65917977)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c65306321c59fbef0e1fda26a32e66347a0ceef5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (44a2fd5edc38e4760b008956991d62cb65917977)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c6cd01be658269b6fd759048bd9758eed9b1e5fa).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (44a2fd5edc38e4760b008956991d62cb65917977)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5e033aa736bd1620df982693b3bb17f19ffd6c21).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4a16cda1817b69e8bfcc7c97c83361909c3a9ba4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4e545b9c44359e6c23aa6e7ee9f103da9617715c).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I'm fairly sure these failures are coming from lean#7762, which unfortunately wasn't tested against Mathlib.

[Kim Morrison]

@Sebastian Ullrich, it's late here for me, so I haven't really looked to see if there is an easy fix in @[to_additive] to cope with this. We may have to revert lean#7762, and then try again with tomorrow's nightly as v4.19.0-rc1?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7440afbbbd59b13a3ecc2bacdc67e4cbf8368584).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (343fba15a3f027f69535af9650a3f19cb75dfc19).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7c822cd27ad6abd08a0ab8012897468b1e037c61).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f18d5e7643f61459ce65a745f8faf75a51479cfb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (388a6d19f8c4b74c27371be43657e9bf7a14119b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7a941131c430d136257a88f45b13a9fcff282906).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1e7f890bd4cdc5001302eb24f84e8f53ee997055).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (aed9d747c0fa0a811af70c98c323f2d54a4e74ac)

[Kim Morrison]

Thanks Kyle and Sebastian for the work overnight!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2c5de4f36ecce65a95981a34fa3687504674674a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

This was me dealing with merge conflicts...

[github mathlib4 bot]

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab457a502f6711335814c0f7d4517c71691e4923).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab457a502f6711335814c0f7d4517c71691e4923).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (aed9d747c0fa0a811af70c98c323f2d54a4e74ac)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9b4fe96d7aa76c0a139cb2940a722c7782962009).
You can git fetch; git checkout nightly-testing and push a fix.

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2d11cab8f878c31c2d4dbda995272f5fcc6be361).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7a4b93882bf21abd156eee5f6fee2815a5651564).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c314845010566d6913d1f0422a1c248f59efc97e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ccb2aeb2b4d6a1fca132003f45050ca740013ea4).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f2a23fd338cc2440cc93cdb3a2422e346924babf).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (858062724f8532d95b7e03e1f724ac4523ba16ce).
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:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d66f383244a70111a71e348e40aff03745c4ac02)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ecdddd70b8ae8c08b0dfa7a918598d871f1c44bc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d66f383244a70111a71e348e40aff03745c4ac02)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3b689fd4b5bcdb0643e8cc59e6f9368e2fb51840).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b7e7d34b02961cba8f71180be18cefb670cf046d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (99717f89ba48894a8d2b102aec4aa6e05bba6833).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (37f686cf27093bcbde5a9eb2f1519ef730de1828).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (81295dfbd8dc35fc1d1f399b7b61dd6cf6e05cb2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (81295dfbd8dc35fc1d1f399b7b61dd6cf6e05cb2).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (81295dfbd8dc35fc1d1f399b7b61dd6cf6e05cb2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b4d11241f700b09f70f513e2f5ebec8863113059)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3ab550b8004bcb8520bffb0b8e1c8bd2bc94a8f4).
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[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (7e3ec380a557ceb5c51f157aea6f72c3f14bc317)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7508a9e2525fc667fb6c44af1ab9f3e49a364560).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (91a7291e877a8ddbb9e95f32875b3470f3ff3dfe).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (7e3ec380a557ceb5c51f157aea6f72c3f14bc317)

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:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0cc1f970691e01afdf9d8bb9f8307cd7b6aca12a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0cc1f970691e01afdf9d8bb9f8307cd7b6aca12a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bdc275fd75f9b2cbdada233ee1a5adde99cf16eb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (801a63fdcbd7b0164e4c410e4c9ac92092b712bb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (28f8afefce5a97f78bba2ae08b72fb322ed5b443).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (895b1f3655a411757b15089a01eeaf8c6d200df8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (020da59ce271c24bb642a4c5b3646095447927f4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0e1917eb24641cebfd8cbfd91c1cf7eee7e1f9d7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2aa907ab8a1f690d97ef4a00f589d3e8ab1cb2c0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2aa907ab8a1f690d97ef4a00f589d3e8ab1cb2c0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (32a0a63fe26b39faa3d1f6055e7f9086095640f9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3a141dd224751a2343052a30b3e9a563f8d43687).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dbd5552b9e1679ba690cc279e32cbaec5b48f171).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dbd5552b9e1679ba690cc279e32cbaec5b48f171).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (15b1cdd7990bc6cd7c1cfab6268595090b91fb29).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Oh dear, lake exe cache get on the current nightly-testing (d4ab2e5cf588ba671ea265bf16ed1b4b2b3e67bf) results in many /Users/kim/.cache/mathlib/57bc8e5d7a5be2fe.ltar: Operation not supported (os error 45) errors.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dadb75c188fcaf0397e9b223a066b87ba735946d).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

CI is also failing in the "check the cache" step, although without printing such error messages, just failing with exit code 3.

[Kim Morrison]

@Mario Carneiro, @Mac Malone, unless someone has an idea in the meantime, could we use tonight's meeting spot to try to diagnose this?

[github mathlib4 bot]

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[Kim Morrison]

Kim Morrison said:

Oh dear, lake exe cache get on the current nightly-testing (d4ab2e5cf588ba671ea265bf16ed1b4b2b3e67bf) results in many /Users/kim/.cache/mathlib/57bc8e5d7a5be2fe.ltar: Operation not supported (os error 45) errors.

@Mario Carneiro, I am guessing this is a change to the olean format breaking leangz, although I don't see anything in the recent commits that looks like this.

Might you be able to take a look?

[Kim Morrison]

Some of the latest failures (separately from the olean problem) are likely from lean#7824, as its seems we need further noncomputable modifiers.

[Mario Carneiro]

That doesn't sound like a olean issue, it sounds like a disk/IO issue. But I will take a look

[Kim Morrison]

There's also some breakage from my lean#7847, fortunately apparently contained in already deprecated proofs which are close to being deleted, and I'll just delete a bit early.

[github mathlib4 bot]

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[Mario Carneiro]

I get a different error:

/home/mario/.cache/mathlib/16566a083771a79f.ltar: Permission denied (os error 13)

(repeated a few hundred times)

[Mario Carneiro]

running it through strace, I see it is attempting to call mkdir -p /home/lean/actions-runner/_work/mathlib4/mathlib4/.lake/build/lib/lean/Mathlib/Data/SetLike which fails at the point of trying to create the /home/lean directory on my computer

[Mario Carneiro]

so apparently these LTAR files have acquired file paths from the GHA runners

[Mario Carneiro]

LTAR files contain records of a file path and compressed data for it, with the file path looking like this normally:

./.lake/build/lib/Mathlib/MeasureTheory/Constructions/Polish/Basic.trace

On the newly generated files they look like this:

/home/lean/actions-runner/_work/mathlib4/mathlib4/.lake/build/lib/lean/Mathlib/Data/SetLike/Basic.trace

[Kim Morrison]

@Mac Malone, this is your change from lean#7822

[Mario Carneiro]

it looks like this will need changes to cache, not leangz

[Mario Carneiro]

(or lake)

[Mario Carneiro]

there doesn't seem to be a function in FilePath for relativizing an absolute path

[Kim Morrison]

@Mac Malone, could you weigh in with your opinion on whether the correct solution is to relativize, or to go back to, in this circumstance, emitting a relative path to begin with (as lake used to)?

[Kim Morrison]

If we need a relativization function in FilePath on short notice ... @Henrik Böving, you probably know better than me who is best placed to implement it?

[Kim Morrison]

(I'm going to bed now. :-)

[Mario Carneiro]

I can write one in cache if needed, the one the runners use can be quite specialized

[Mario Carneiro]

i.e. just stripPrefix

[Kim Morrison]

That would be lovely as a stopgap, thank you.

[Mario Carneiro]

the part which is confusing me is that cache doesn't use lake at all -- there are no Lake.* imports in cache, so I don't see how mac's changes could have propagated to cache

[Mario Carneiro]

aha, it's via lake exe - it now sets the LEAN_SRC_PATH to be full of absolute paths instead of relative paths

[Mario Carneiro]

pushed a very basic relativization step in cache. It might need a cache refresh though

[github mathlib4 bot]

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[Kim Morrison]

Mario Carneiro said:

pushed a very basic relativization step in cache. It might need a cache refresh though

I'm unfortunately still experiencing /Users/kim/.cache/mathlib/1a8bf81714581847.ltar: Operation not supported (os error 45) on running lake exe cache get on nightly-testing, although CI itself seems happy. Can anyone else reproduce?

[Mario Carneiro]

confirmed

[Mario Carneiro]

fixed better this time

[Mario Carneiro]

(missed an edge case which meant that only files in mathlib dependencies were fixed)

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[Mario Carneiro]

and unpacking worked this time too

[Johan Commelin]

Hooray! Thanks for your valiant efforts (-;

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[Kim Morrison]

One breakage tonight is that I changed the Pow instance on UIntX in lean#7886, and Mathlib/Data/BitVec.lean is broken. My proposal is to delete everything that is broken in this file, without replacement. The material there is only to set up UIntX so it can be used with Mathlib's ring tactic. As far as I am aware there are no users of this besides perhaps @Tobias Grosser's group. It won't be too long before grind and simp in Lean supersede the ring tactic for these users (we hope).

Let's wait to see if Tobias (or someone he asks to look at this) sounds anguished about ring not working with UIntX in the meantime. If so, we can work out who will fix it, and otherwise we'll hope it simply doesn't need fixing.

[Kim Morrison]

A problem I don't understand yet is Mathlib/FieldTheory/IsAlgClosed, where several simp lemmas appear to not be firing, and I don't see what change in Lean could explain this.

[Kim Morrison]

Another as yet unexplained problem is Mathlib/Analysis/Distribution/SchwartzSpace.lean, where a gcongr call is producing quite different results that previously.

Perhaps here I can ping @Moritz Doll and/or @Sébastien Gouëzel to see if they can see what has changed?

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[Tobias Grosser]

@Kim Morrison, thank you for considering me. I am traveling this week, so won't be around to fix this this week. Nothing bad will happen if the ring instance is dropped for now. I can look into this next week and either carry it out-of-mathlib or immediately switch to grind, ...

[Tobias Grosser]

Please do not feel blocked on this by me.

[Kim Morrison]

Great, thanks Tobias. grind isn't quite ready for you, but we'll make sure things work in time. :-)

[Kim Morrison]

Back to the other problems:

The problem in SchwartzSpace.lean is actually due to a change in behaviour in move_mul.

[Kim Morrison]

I've annotated the changed goal states, but haven't investigated.

[Kim Morrison]

Could I ping @Arthur Paulino and @Damiano Testa to take a look?

[Kim Morrison]

(I suspect this may actually reflect a bug where some upstream function has changed behaviour ... we'll see.)

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[Kyle Miller]

Pushed temporary fixes.

I wrote the rws to fix Mathlib/Analysis/Distribution/SchwartzSpace.lean and left an adaptation note. It's the only #adaptation_note in the file @Arthur Paulino and @Damiano Testa.

Stranger are those failing simpas in Mathlib/Analysis/Normed/Algebra/Spectrum.lean and Mathlib/FieldTheory/IsAlgClosed/Spectrum.lean @Kim Morrison. Moving the using clauses into haves fixes them. I didn't investigate. Random guess: are there some typeclasses that have changed? Potentially there are instances that don't synthesize soon enough with Tactic.elabTerm stx none (mayPostpone := true).

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[Damiano Testa]

I'll take a look at move_mul, but it'll be in a few hours.

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[Damiano Testa]

I am slowly understanding what happens. There are two (1 + ‖x‖) ^ l in the goal

The first has expr

@HPow.hPow ℝ ℕ ℝ Lean.Grind.CommRing.toHPow (1 + ‖x‖) l : ℝ

while the second one has expr

@HPow.hPow ℝ ℕ ℝ instHPow (1 + ‖x‖) l : ℝ

and move_mul does not consider them the same. This means that writing move_mul [(_ + ‖_‖) ^ _] matches the first, on the LHS, and moves it, but does not perform the analogous movement for the other one, on the RHS.

However, using move_mul [(_ + ‖_‖) ^ _, (_ + ‖_‖) ^ _] would work: the first matches the LHS factor, the second one matches the RHS factor and they then both move.

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[Damiano Testa]

Here is a #mwe showing the issue (only works in branch#nightly-testing).

import Mathlib.Tactic.MoveAdd
import Mathlib.Algebra.Ring.Basic

example {R} [CommRing R] {z w : R} : z ^ 1 * w = z ^ 1 * w := by
  -- if you comment the next line, then `move_mul` succeeds
  show (HPow.hPow (self := Lean.Grind.CommRing.toHPow)  _ _) * _ = _
  move_mul [z ^ 1]
  rfl

With the show line in, the first power becomes "different" from the second one and move_mul only moves the first match. Without it, both powers are "equal", so move_mul moves both.

[Damiano Testa]

What I still need to understand is why the match is not up to defeq, even though move_mul seems to use isDefEq and not exact matching on the expressions.

[Arthur Paulino]

So isDefEq is not returning true for entities that are defeq? Or is there still doubt whether those are defeq or not?

(I'm catching up with the thread)

[Damiano Testa]

No, I think that there is a bug in move_add: there is a first defeq check which (I assume) does the right thing.

[Damiano Testa]

However, later I use exact matching on expressions, but these are now different-but-defeq.

[Damiano Testa]

If you are curious, docs#Mathlib.MoveAdd.reorderUsing does exact matching on expressions (it is used later with \alpha being an Expr.

[Damiano Testa]

The defeq check is at docs#Mathlib.MoveAdd.pairUp, but the information about this is not propagated to the later "pure" function.

[Damiano Testa]

I am tempted to leave the small hack in nightly-testing that uses either the rws that Kyle used, or using the "double" move_mul call and refactor move_mul later, when I can try to do a better job at it.

[Arthur Paulino]

Minor thing: there's a typo in the docstring of pairUp

let R := [mkNatLit 0, mkNatLit 0,                                 mkNatLit 1] -- i.e. [0, 1]

Should be

let R := [mkNatLit 0, mkNatLit 0,                                 mkNatLit 1] -- i.e. [0, 0, 1]

[Damiano Testa]

Thanks! I picked that up, I also think that the first R in

At the end, it returns the sublist of `R` of the elements that were matched to some element of `R`,

is an L.

[Arthur Paulino]

My first impression is that instance resolution is getting in the way. Has anything changed recently on that regard?

[Damiano Testa]

On master, the grind stuff is non-existent.

[Arthur Paulino]

I'm surprised this is the only failure point of move_mul, considering the hypothesis that its behavior has changed

[Kim Morrison]

It's terrible that Lean.Grind.CommRing.toHPow is showing up anywhere, and I'm surprised that it didn't break more!

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[Kim Morrison]

Okay, reducing the priority of the parent projections for Lean.Grind.CommRing resolves the problem in SchwartzSpace.lean.

[Kim Morrison]

and similarly the other adaptation notes for 2025-04-14!

[Kim Morrison]

I will get that into the next nightly.

[Damiano Testa]

I now wonder whether move_mul should not be "fixed" and act as a check that similar such changes do not happen in the future. :lol:

[Damiano Testa]

I am going to delay revamping move_mul for now: although I think that it would probably benefit from a revamp, I do not have the capacity to do it now.

[Kim Morrison]

lean#7975

[Damiano Testa]

Should the PR come with a test that makes sure that the grind instance is not picked up? Maybe even in mathlib?

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[Bhavik Mehta]

Kim Morrison said:

No, we'll work out how to support this. It's a reasonable use case.

Have there been updates on this? The commented out version has been in master for a little while now

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You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

There's a problem here. Mathlib.Algebra.CharP.Basic defines

instance (α : Type*) [CommRing α] (n : ℕ) [CharP α n] : Lean.Grind.IsCharP α n

The Grid.IsCharP class has n as an outparam, but CharP does not have n as an outparam, so the synth order checker fails.

I'm turning off the checker for this instance and leaving an adaptation note.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6a858d8eb60af16817a32cf642a5bc67a2ec52b5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a97f34f9002eea29dac71f0b294678d702511e2c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (7e1178d897c64fca384e902ea5298d99491f4e16)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (04cea2442cb64efe013904b87cae551507694c23)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2002920645c1f9223ac9557c2251c7d5f2744a5a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9da3d905bbbfbf8acdc5c95aecbe86ae234dfdcc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0c3e3bc3f49047238a49c2b40eac6ae65cf03cdc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (32998106f5c17a8b3e9ed1142b0fd8d10308d301).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (baf884f022743fe2d457d778610456a718bc471f)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (15c5f504a7f2bea1cc172e9b925c5263bff6f1e2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9b438301d5c57ed978f64f7d2f0ae865443faf50).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0205af1a3f3bf24456b24eff09f9027b5336a989).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c6fb6f0bace9c91471161ad102fa2236081e4be6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a29b84dc5791a6674cacb955f0b91282e998476f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (673d2deeb899c29f763413a77d2a802c3e610eb7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (673d2deeb899c29f763413a77d2a802c3e610eb7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (04c82c164d0b74dbfe3fcd0d7e174938d1112399).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a5abec925c22ff12ab61d8c9f42d443ce6ee8008).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (80bf3eaeb13d9d6f55b62656b60c8c24be15a55c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4790a8f38cb6c3851e047216eb5274d1584d5919).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b3692fdf0b4e4ac8d6d2355d52ea0c97640b863d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e218a97a46ace3af6eaee464e89926011811242f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (deb75d65c1b697b286e4c4d7871e618a720ba0bb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5eed989e6db5c84e7df50fff5efaf55aea0b8b93).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b000f0cba825173fbea70867165ea6ec82378494).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0b45b3cb4ae9ef0d9abc6fe8deabed9b4a509656).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a6a1efc4b1e46844f4ac443f6ad575e71017b82b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (44efe04055fba9a1387f320d39c6ec9d6a609aa1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (44efe04055fba9a1387f320d39c6ec9d6a609aa1).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Sorry, these breakages are on me, from Lean.Grind.CommRing changes. I will just comment out these instances until I have a chance to fix them.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c3c53374d33845762c7987c8c5f2b09d1fa16ea1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9062fa84b18ca99b0a1faabab8922de665ea91cc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (156e74538449f643a8fd5db493849c10ddcdd093).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3804f24fdae894f4e2dcac649545982149f3ef85).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c2e31189d9dc2cd707ba1f07bf3df408d0dc30ed).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c2e31189d9dc2cd707ba1f07bf3df408d0dc30ed).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (50ab41a8bcfd26dedf33cb74c31229b86dc2b4ef).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (11cedf3d2f9d57a855f824465f347d349d3cd5f1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (11cedf3d2f9d57a855f824465f347d349d3cd5f1).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I'm hoping this will come good shortly, apologies for the long time spent broken here...

[Kim Morrison]

@Joël Riou, I'm wondering if I could ask you to have a look at a change I had to make in Mathlib.Algebra.Homology.Embedding.Connect, in lemma d_comp_d, where I added the note

    #adaptation_note /-- Prior to nightly-2025-04-25 this was just `simp`. -/
    -- Previously, `simp` would use `d_ofNat`,
    -- but now it uses `Int.natCast_add` and goes in a different direction and gets stuck.
    simp_rw [Int.ofNat_eq_coe, X_ofNat, d_ofNat, HomologicalComplex.d_comp_d]

on branch#nightly-testing.

If you'd have a chance to take a look at this, and investigate if there are additional @[simp] lemmas we can add to restore the correct behaviour, that would be very helpful. (Alternatively, we can investigate why Int.natCast_add it now firing, and try to undo that change.)

I can look into this again next week if no one else has got to it by then.

[Bhavik Mehta]

Sebastian Ullrich said:

can we instead (temporarily) ban uses of omega in aesop, e.g. by ignoring this file on nightly-testing?

Is there a tracking issue for this? It seems that omega is banned in aesop now, and the file is ignored in mathlib master. It would be nice to have some idea of when this file is coming back!

[Kim Morrison]

This is an question for @Jannis Limperg, right?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (aaf7807033ea98abbd591b7bfd0fecb9182eef7d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (aaf7807033ea98abbd591b7bfd0fecb9182eef7d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (aaf7807033ea98abbd591b7bfd0fecb9182eef7d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b7a687535bfa626b79c5554e6f7e2a6dfd15339a)

[Joël Riou]

Kim Morrison said:

Joël Riou, I'm wondering if I could ask you to have a look at a change I had to make in Mathlib.Algebra.Homology.Embedding.Connect, in lemma d_comp_d, where I added the note

I would think that Int.natCast_add is a good simp lemma in general, so that we just need to prevent it being triggered in this particular case. I have pushed a "fix" consisting in squeezing simp? [-Int.natCast_add].

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b7a687535bfa626b79c5554e6f7e2a6dfd15339a)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a91fc5caa16bc82b9ba3eeb55ba4268223553f17).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a0dbca2092519754c44c7409a9988b943cbb9ee3).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Almost there in lean#8114! @Kim Morrison I think we can wait for the next nightly but I'm curious - would there be any negative consequences of bumping nightly-testing to a PR release?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a0dbca2092519754c44c7409a9988b943cbb9ee3).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Sebastian Ullrich said:

Almost there in lean#8114! Kim Morrison I think we can wait for the next nightly but I'm curious - would there be any negative consequences of bumping nightly-testing to a PR release?

We've done it occasionally, it should work, and CI will clobber the toolchain tomorrow.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (637398a215a1ec7aadc4de0138c5bd4527296279)

[Sebastian Ullrich]

Indeed, only the discover-lean-pr-testing check yelled at me :) .

I'm not quite sure yet whether my deprecation of ConstantInfo.isTheorem, or its attached message, is appropriate. In core, all of its users really cared about whether the constant was originally declared as a theorem, thus the deprecation message. But here the two users really only cared about what constructor it was at that point in time, so I changed them to direct matches.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (637398a215a1ec7aadc4de0138c5bd4527296279)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (44f760b7eedc79bdbd0aade893d545d16a2c58cf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (44f760b7eedc79bdbd0aade893d545d16a2c58cf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (44f760b7eedc79bdbd0aade893d545d16a2c58cf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a569d4850c7a997eb018903d0f4d3d27589b7b77).
You can git fetch; git checkout nightly-testing and push a fix.

[Bhavik Mehta]

Kim Morrison said:

This is an question for Jannis Limperg, right?

The discussion here #lean4 > aesop and bv_decide @ 💬 suggests that it's a problem with replay, rather than with aesop

[Ruben Van de Velde]

Quick r? #24417

[Kim Morrison]

Bhavik Mehta said:

Kim Morrison said:

This is an question for Jannis Limperg, right?

The discussion here #lean4 > aesop and bv_decide @ 💬 suggests that it's a problem with replay, rather than with aesop

@Jannis Limperg, do you know what change is needed? Ideally aesop would just take over whatever replay functionality it needs.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (04fc112dc64638d572c795b5515dbc1eeadc1e29).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (26e8de2dfae04438c9cd6da1fa9df74d89f70e6b)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fed914b4469dc74c7ff6cf8e3a681a38a1b5e672).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b8e91f6731db01e801d19a5c068fad31a64d38b5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (70fb092b5fbe862f4116a3a722a128228328ba4b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f77211db8b7a134d5eaa8131e63fab3ff0e80a70).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (26e8de2dfae04438c9cd6da1fa9df74d89f70e6b)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (91ba50b9ac2717983d780a776d2a36d7eb989509)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (12e7ef97c27845977c4f82e86db3e93dd851f71b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab000e4c8ffacfdc42e08b5467fb89c7d6888184).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ab000e4c8ffacfdc42e08b5467fb89c7d6888184).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (91ba50b9ac2717983d780a776d2a36d7eb989509)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (072b045dc0d12adc22df3d516bba40d3990db0ce).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c00c2f88f546a022ea12486c0a890110c0b5a7f1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (61ea3c01210efd193bb5a6a71be4a75cc956b797).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Looks like someone has already fixed this one, thanks. :-)

[Johan Commelin]

I'm working on it

[Ruben Van de Velde]

Another quick review at #24449

[Johan Commelin]

@Ruben Van de Velde can you please explain the reason for that PR?

[Johan Commelin]

Are these changes that are backported from bump/v4.20.0?

[Ruben Van de Velde]

From nightly-testing, but same thing, yeah

[Johan Commelin]

But these change are already being reviewed when they get merged into bump/v4.20.0 through the adaptation PRs. So, while I appreciate the effort, I don't think it's really necessary.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (61ea3c01210efd193bb5a6a71be4a75cc956b797).
You can git fetch; git checkout nightly-testing and push a fix.

[Ruben Van de Velde]

I think it's beneficial to limit the monthly bump PR to just the changes that need to happen all at once, otherwise you get massive commits on master

[Johan Commelin]

That's true.

[Johan Commelin]

In that case. Is there a way to auto-generate PRs like yours?

[Johan Commelin]

And independently, to ask git whether the patch is contained in stuff that has already been reviewed, to avoid double-reviewing?

[Johan Commelin]

github mathlib4 bot said:

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (61ea3c01210efd193bb5a6a71be4a75cc956b797).
You can git fetch; git checkout nightly-testing and push a fix.

I'm confused. Locally it builds, tests, and lints fine...

[Johan Commelin]

Never mind, the issue is shake

[Johan Commelin]

$ lake exe shake --fix
The following changes will be made automatically:
/home/jmc/repos/nightly-testing-bumps/Mathlib/Data/Stream/Init.lean:
  remove #[Mathlib.Data.List.Defs]
Successfully applied 1 suggestions.

except... no? The import is still there.

Removed it manually.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (5afdea540abf6226b130896e2c1ae3e06de1c3bb)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (819ba93940a13dad156bbb33138035f9e763aab0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d31099deb6401127888aa31e2724ba8594769f18).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4dd235e6045ca31c51dace4dcff464a16170359c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2c6431a7fae9ba16e92fefbebd3648bdeb0bb5c3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3f501c89f185e585c5be27b36857b9cbd7bdde88).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ffa0da468b56742dac6d108dff59ad4ee1ddfc6a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9bd9792ac67f684040ebb58a609f48f10ff10bc6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (4dd235e6045ca31c51dace4dcff464a16170359c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (429a671bb6b2694fe09ad32e728a85df69a542d9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f4adaa2f478c30c5f520e2571a2b668f6c6f592e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d21cb887c766740060152de7c03960739c851ed7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (701d7503190076933232fbffd40efc333cae8490)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (9609f78734850b7dd8482688323908633e77fa4a)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (af3f7e59787eba900eb6489ddf6631eb87099d3f)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cf60aac646306fe4e74f6d112edc8754cf50927a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9c5455a132e91d6101121aa2e7a1342862352dda).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ce872d984ce45ccb7baddd49a913fd450733a709).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (529c13b5da1ff47aef41dbebd4d004fdf353aaf7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (03bc870a1a65cfea41eecb05a8599288a601629b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (19855c0801d3dfaf2874823db6190d43df6cb4f9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a3652388e0853e5215b14d437feff567f9258f8e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a3652388e0853e5215b14d437feff567f9258f8e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (dafa7119eaad16a20c041afb508c337464b6b316)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6870b869fd0a1a4bb0334893dd78183c76580b83).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (dafa7119eaad16a20c041afb508c337464b6b316)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a19d1649383d65a9c4aa006b1f896f003c61a160)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in the latest bump branch does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.
Current content:
This needs to be fixed for the nightly testing process to work correctly.

[Damiano Testa]

:warning: exotic message!

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a19d1649383d65a9c4aa006b1f896f003c61a160)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in the latest bump branch does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.
Current content:
This needs to be fixed for the nightly testing process to work correctly.

[Kim Morrison]

Strange message, because it's false...

[Kim Morrison]

(But we are exploring a corner of CI that has never successfully run before, so I guess this is to be expected.)

[Kim Morrison]

Let's see if #24635 helps.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a19d1649383d65a9c4aa006b1f896f003c61a160)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in the latest bump branch does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.
Current content:
This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a19d1649383d65a9c4aa006b1f896f003c61a160)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in the latest bump branch does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.
Current content:
This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (aa0e73cf2d3ddd03282752c311ea8ff9771f6bc0)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (d892bde274dc0b200161339bc4fb901f7e1be0d1)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (33217e9878a8466b793bad6b09c35070fb55741a)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (dd0898a0fb2ffee28c2dac88edad44a1c10d0116)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (8869f89d6f5b19b3c41bdbcaaac5d38c06434caa)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (c3e0c0c39b94e1825953e547abef20a534faf46e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f167e8ddbde220d1a70abd905821e6bf83828935).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f167e8ddbde220d1a70abd905821e6bf83828935).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b9ded787281c489758b033d759e03098a786b1af).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b3c5820c69d5c33c515f20d76e34874e5f742020).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (33308ffdc0dc62f1437e76c5ce0857f52b7b3bfa).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e9db98beeec1b415e419a3a8f0d96ed55b0f29ab).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (87a50461a7f908301812ff4292c6826365e458c0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (da11a5fe442e11ece25a34f3aef63411fdf7e64a)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c53aaa6730188e4f26ead9ab05029673b3fcea3b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bdbaaec4586199137d0c4b8de97c1ececfb8f05d).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Ouch:

error: /Users/kim/projects/lean/mathlib4/Mathlib.lean:1:0:
import Batteries.Data.String.Lemmas failed,
environment already contains 'String.instTransOrd' from Std.Classes.Ord.String

[Kim Morrison]

(I fixed this by simply importing Std.Classes.Ord.String in Batteries.Data.String.Lemmas, to ensure that Lean could see the potential for conflict and automatically choose better names.)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f55ac5ea0e76acb6f46d12182c7008f46995c424).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (624a35316bda9df5ef3649d2fbf2c975f51124cf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (88c664917b2ae535a983bff73d77c23e3d667f8c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c61b9b01b5cb518d61dfd95afe1253bd92a147ad).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (73a7031ff90f2cee74ed18883bba867790593600).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (909e37908d7a2df03f0d43c5d9e9dda31bbf6cd3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d6c3a2d285e461d43a0bed7d7a2aa51fce4de3d9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4009f934785d750afe7a58f05496bf7c5227b4a2).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I already fixed that! (shake --fix) Not sure what went wrong, trying again

[Ruben Van de Velde]

Maybe https://github.com/leanprover-community/mathlib4/issues/24743?

[Kim Morrison]

@Mario Carneiro, the fix for this is in your #24807, which is marked awaiting-author. Will you have a chance to look soon? If not we'll just merge anyway, I guess.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ca03b453d5de520856682af67fa7afbdfca8ea17)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (590a7b8322f33874b3b570bc1f2dc09f92c11d2b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (590a7b8322f33874b3b570bc1f2dc09f92c11d2b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (58bea692477a193f887dc52f966400f66c14d0b0).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Hmm, I seem to have broken something badly by moving the notation class Inv up to the Lean repository in lean#8345.

[Kim Morrison]

We're now getting lots of errors like

(-1 + u⁻¹ : R) -- failed to synthesize Inv R

for u : Rˣ.

[Kim Morrison]

@Kyle Miller, perhaps you have a hint?

[Kim Morrison]

Ah, maybe I see a whitespace typo that may have broken the unop% elaboration helper.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9e7d035eaa9148e5aa81d80aabcf12c1c1b84004).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Ah, sorted. One must not use unop% for Inv.inv!

I'll move nightly-testing over to the lean-pr-testing-8351 toolchain shortly.

[Kim Morrison]

There were also quite a few changes that had accumulated that were incompatible (i.e. had superfluous dsimps) with Jovan's recent changes. Probably we will have some more of these before the end of the month.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (951d0a1e08447c2fe2f4d5062837c2428ded4fc6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (125bc590062e108313bdc113f8d6341664bd4d11).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (de9c99925b9978fe63320cdf17e99000f347bdff).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Ah, okay, the bot sets the toolchain back to nightly automatically. This will remain broken until tomorrow.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f3d9e0c630b3de5bb65b2a87074e440677fa8d48).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2ddde4f3126db03aeeff243a6a2fae1e0f0ea698).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

Kim Morrison said:

Ah, sorted. One must not use unop% for Inv.inv!

That's unfortunate... Is using Inv.inv in this heterogenous way the most common? Not adding unop% means types in arithmetic expressions won't be able to propagate through Inv.inv in the same way as other arithmetic operations.

Using the unop% helper, you'd have to write (-1 + (u⁻¹ : Rˣ) : R) (maybe (-1 + (u⁻¹ :) : R) works too). Not very pleasant.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4551f5664b69a6e16aaad2ade073c9c0cd1b8639).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7e5e1e6ae45b5aa96299cf330b2df9016b4c542a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c4a97f5f275b2d5e70c42bd711299840cb192c36).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (64f23d2ee4fa8bd912b4450c2e9691e80e0a7222).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (52e9c62bb1c948ac7d8c8c23f21ef9fa7e775c41).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4d4b317a9ccafdb62206c78711b29d43bccf7ea3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (00be6377c3a1cfd3d70f6b2d3b18409bafbc8f7e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (49a23c600d5abe180e30a5c6fed3cc708b7e1de2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (77454ed02f4703ee3f9fb9c57d7554501ffd605b)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f27355c1aed94df0bcbaf74b72d86c1daebfda6e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (19337f2bd8ff53570f7b5095f6d8b4ea9f724b8f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (82b03c0d5781998b03f097733b384f711d03fffa).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (f27355c1aed94df0bcbaf74b72d86c1daebfda6e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a91df8da4ca1c8e0a80c0807f2c1e8a9ea9011e2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a228b7f6ef14afc0fbaabcbd70945f65a7fcd6ef).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0d2d0d7c62b4aa30ac89a4ce98117733a5e0fa65).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2193fd84b62b242dbeea388727568c3d23e5e251).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9564192722ac6bcb396a8ef68f176092b87b0e10).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (83f3832c6cfeecbc8d16b0248c98346956a7f0e5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (83f3832c6cfeecbc8d16b0248c98346956a7f0e5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (83f3832c6cfeecbc8d16b0248c98346956a7f0e5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (83f3832c6cfeecbc8d16b0248c98346956a7f0e5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (83f3832c6cfeecbc8d16b0248c98346956a7f0e5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (83f3832c6cfeecbc8d16b0248c98346956a7f0e5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (83f3832c6cfeecbc8d16b0248c98346956a7f0e5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (6f0aafa2a2f76b744f66db7ae846ceaee38974e5)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4f17adebb3ea7e6d095ded0d8897bd5a47bfe07d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (136d4927370922d50f5b36654f71eec43784c6c5)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (69245187dc435125749c5cc16759da1508b6e0af).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (136d4927370922d50f5b36654f71eec43784c6c5)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b1993479392f304ab4e33947612d512d43b90d2d)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (537a98e0c053976429d5fe61d843c5c8ac2c892e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f34c1f584077f008f706f4fa12fc8881ad722e31).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3ee28f8c6f81ffe85729e2c3c62656b11b45aa85).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b1993479392f304ab4e33947612d512d43b90d2d)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (484320504fe5f8b2ff564b8ca8319a43d4695b2b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (484320504fe5f8b2ff564b8ca8319a43d4695b2b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3ffff9ede0b0dcb00ff651e58baa0754c0968dcc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4db29a97d5f4c276a1a883ccbcd44113e3070c2b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (06d29195366303f117ff51400f7544b1cfeec3d0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (de0f1e8317fc7bb31981dfc149f13b739253f09a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (30ae5addc4aba5803b38de4777e03f3a720a9dea).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d4d6fed9ec6df46db12fbc9ebed2d86ab66fbf29).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (1db1f04b7a88cd75102b70ac6befc4b18d08727c)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (e8511a836bcc06fe4f35d6b5eae5770cf0a06e60)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8386af85095c985aa33ed448aa9890a40cc5fa00).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2f24c6a54108fa0a30015d289b78f7de11931b8e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (cdf00c3262877ba8a9c34e58215d2a31dee64adb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1671a6800555ca3012b379b59af87b2d0e23750c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (61de43dfb330ba44bc6ac5603a46cedc2583b583).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (78204fd6d53e7401f71e97facae181abcef6c875)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1f5342720a7869e4ff8c2f890acad3818fefc82c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (fafc2d8bb4f2384bc2852e88e420e6d041b596c3)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (97bc5f6d896e1593618d0b57beca4f9de618a50b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (97bc5f6d896e1593618d0b57beca4f9de618a50b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b7922f25621402041cfbf49370324e43d5366d2f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fc190a53670152feca8698a35180a7d4bc08de07).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a8e1f8267d4cbabac2f3ec3efd0611eabf8d0fbe).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (282cd80104881fe7981f70f2482bf3a2d1ee93b3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b5423b71cf1e1bd16c3668e70af3f1568f5dc221).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a8f4f9af9a747169f9bf2a10c29894bc29c8af64).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a8f4f9af9a747169f9bf2a10c29894bc29c8af64).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a8f4f9af9a747169f9bf2a10c29894bc29c8af64).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Michael Rothgang, @Anne Baanen would you be available to look at this failing test?

It is an interaction between the directory dependence linter and the new linterOption framework.

[Anne Baanen]

Ok, I'll take a look.

[Kim Morrison]

I've just pushed 3a34736f599 which temporarily comments out the failing test, as I would like to ensure we get to green for Lean testing purposes before the weekend.

[Kim Morrison]

But this commit can be reverted.

[Anne Baanen]

Fixed! The header linter checks whether it's running in Mathlib or a test file, and disables itself otherwise, but did not recognize the test file. Not sure why that isn't an issue on the master branch.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (3a34736f5995ef991ce09ffd0439fe995f49f7dc)

[Anne Baanen]

Ah, seems a merge went wrong. Copied over the exact code now, which should do exactly the same thing.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e88e619b06606c36e542cefe2af9b382112a0348).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2b2788e7a1259d491770fb9660b58375774f816c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ec35a548acb922c0093155ec2d73d1e618454872).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (520939fab5fa0944e628b5f3870b23cda61639d5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1a9b964b92509b9a757fd24bae6b6b9812443163).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (59c607936721f4ccb5c7c3cd3ca9f6039a6d82be)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1a9b964b92509b9a757fd24bae6b6b9812443163).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (00898110647ec3168fdea4081af13d2621a95354).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4459088658417ad4ec82b194da3184cbe638b7e0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3f45597c0f418ed651130f877e2a89186ea3abcc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bc40dcfb1a99949bd4985ec93613f008124148a5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9265da5cb8f95b4210a510f861fe8a6cdb16bb16).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (644a2302b0210c65cac2ba7497eba7f90a3cb803).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6ea68a87c1a3887fc0a9150cec021206d5a0d024).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6ea68a87c1a3887fc0a9150cec021206d5a0d024).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7aca00c01d2ab15e53c9a04ae59200aca42b80d2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a3cf05e12e284f915874efc4a0131c41a6e23532).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ac7d8cf03db685fb9230d273bbe09ace3cc370df).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1414404d0a57f58a3cd748ac7b9060349b37dfbc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a55b97615cc094e3aa31a004f9069130f269daae).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (347b2efa08a0a3cefd676315c3bdb64cf11fbe3c)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (59d029368a02341d0ddb123a1d9f5a4d6737935c)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bdc2b05443e4b288467636946059666bc4eef292).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (595ac3cad016af3480984a4f0972e1808a3a8bc5)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d1cba2e8f07d95dbae8fb527d66769ba28c68ee3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d1cba2e8f07d95dbae8fb527d66769ba28c68ee3).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Looks like we need a ProofWidgets patch for lean#8105.

[Kim Morrison]

Done in v0.0.63-pre.

[Kim Morrison]

Does anyone know why to_additive is broken on nightly-testing?

[Kim Morrison]

lean#8584 was the answer. Unfortunately the bot didn't automatically merge, or even report, lean-pr-testing-8584, but that's done now.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (03daea22daa097731dd0f3d8f870e36086671b88)

[Sebastian Ullrich]

Kim Morrison said:

lean#8584 was the answer. Unfortunately the bot didn't automatically merge, or even report, lean-pr-testing-8584, but that's done now.

My bad, that's likely because I pushed it directly to master. Unfortunately there is still this GitHub bug that prevents us from merging these PRs ourselves but I'm planning to ask someone else next time.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (a0370507e2922f0a329a2d8cc17e9f9148cd168d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (03daea22daa097731dd0f3d8f870e36086671b88)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b71e8543f488392e9cac2e5fef9511f787562a1f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d2867d7b07c7f3edf4dd93cba6d7499615267a6f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c7f51d87683fe8f4567263bab492016c5ff4b54e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c7f51d87683fe8f4567263bab492016c5ff4b54e).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Merged batteries-pr-testing-1220

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c7f51d87683fe8f4567263bab492016c5ff4b54e).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Mario Carneiro:

info: Shake/Main.lean:644:0: #[Name.anonymous]
error: Shake/Main.lean:643:0: ❌️ Docstring on `#guard_msgs` does not match generated message:

info: #[Name.anonymous]
error: Lean exited with code 1
Some required builds logged failures:
- Shake.Main
error: build failed

[Kim Morrison]

Kim Morrison said:

Merged batteries-pr-testing-1220

I've reverted this, as it needs further review. Let's get #25478 in master asap, and then that will flow into nightly-testing.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0a7d1791fb0a41960ca4624a38f492896c5941ac).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Is that meta fallout on Shake? Any idea why it succeeded on the PR itself?

[Sebastian Ullrich]

Upgraded to syntax quotation. I did not allow for module system modifiers yet as it's unlikely Shake will do something sensible with them without further changes.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7d5bdba1cb8d07d9818165c7be4509ab757ad7f8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7d5bdba1cb8d07d9818165c7be4509ab757ad7f8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (673dbbdb126ec2f903efa5baec90a60b50b10a30)

[Mario Carneiro]

Sebastian Ullrich said:

Is that meta fallout on Shake? Any idea why it succeeded on the PR itself?

As foretold: #general > lake exe shake --fix is broken @ 💬

[Mario Carneiro]

As to why it succeeded: it didn't. So the question is why this failed build is reported as a success here

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (673dbbdb126ec2f903efa5baec90a60b50b10a30)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (05d5f260d39c47f48e3618aefa768ccfb9a88465).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

This is failing, I think, as a side effect of our recent deployment of landrun.

[Kim Morrison]

Unfortunately, I won't be able to fix this until Monday, so if anyone would like to investigate that would be great.

[Kim Morrison]

The actual error is:

https://github.com/leanprover-community/mathlib4/actions/runs/15482344387/job/43590344569#step:17:13

so almost surely we are just running with the wrong toolchain when CI is handling nightly-testing.

[Kim Morrison]

Oh!

[Kim Morrison]

We are running mk_all from the master branch, against files on nightly-testing...

[Kim Morrison]

@Johan Commelin, what do you think? I think we're going to have to set up a lower security CI setup for nightly-testing, that just runs the scripts from nightly-testing itself.

I think we're going to have a similar issue for any version bumps on master too. We're going to have to have a separate CI process that simply uses the branch's scripts.

[Kim Morrison]

More if statements in mk_build_yml.sh?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (480a4cbf195d7ce802babd92cffe1f626a567588).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (57ed0a13e76418c4b9322b3e23c5f3d5cd9e8445).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fda802e34e3e8ff584b5c38764679611c606ccef).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (742c6cc0769cf57b985f7cd7970bbb687eb002a7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (48cebe313b2cc4203ff3f01ccaa171dc6197a528).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2b5cc7dbf7b9acc716eb70f1fc593f77ffc5c984).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (abbdd1252138b5a815e9bbc91df8c31c37f5928b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (994033ef9c4b418ad19747aa3589495b60728067).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

Kim Morrison said:

We are running mk_all from the master branch, against files on nightly-testing...

Sorry... why is that an issue?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bd7f0d6243fa265cd3251a5046111248e07ed421).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bd7f0d6243fa265cd3251a5046111248e07ed421).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bf1171271afab2055ee6dd577146d47ccfc087f9).
You can git fetch; git checkout nightly-testing and push a fix.

[Bryan Gin-ge Chen]

Johan Commelin said:

Kim Morrison said:

We are running mk_all from the master branch, against files on nightly-testing...

Sorry... why is that an issue?

So I haven't read scripts/mk_all.lean, but my best guess from the error that Kim linked earlier is that mk_all requires that the package it's running in has the same toolchain, and here they are different?

[Johan Commelin]

Hmmm... That's unfortunate. From what I understand about what mk_all is doing, I would think it could be pretty toolchain agnostic. Back when it was a bash/python script, it certainly was!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6c6e0180f0d3dc9f47f85532f48d268d8656789a).
You can git fetch; git checkout nightly-testing and push a fix.

[Ruben Van de Velde]

Yeah, that's a disadvantage of writing our tooling in lean

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (006201f19d874255716a8a2365a2a630984b1dc9).
You can git fetch; git checkout nightly-testing and push a fix.

[Damiano Testa]

mk_all goes through some effort of determining the dependencies automatically, so that it works on a "generic" project, not just in mathlib. This has its disadvantages, though, especially now that there are so many meanings for mathlib when dealing with PRs from forks.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bb076f5f2d39b534b917755b0338314b6714304b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bb076f5f2d39b534b917755b0338314b6714304b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c38c7fde32656c7fa1b2471ed1ae0d50a600f089).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3bb3ee2af45a24bd1533f8e1803c06a5035a7070).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (284e9184e3c66df8c1ab46e85f2cbf4e6b6c3e68).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d1c754c26e7bb83ba1f88f9a51e3c536722c769f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8b8fe2fa631658e55895b284747a997a249d3599).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8b8fe2fa631658e55895b284747a997a249d3599).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (18fc2693a603f23ffda0e45a2983ccf374aa1323).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7deb334c5f5104f4edad1a6396dd02a8cddefb86).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (fe653fb930c0c9c876267b109287322a055e12a0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c9a191be40d6f147aa466f25016fdcd251242aab).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Anne, this is failing both in the build step (because of our recent CI changes), and in the style lint step. Could you look at the style lint step? I think this is fallout from your changes around mathlibLeanOptions.

[Kim Morrison]

Sorry, I misdiagnosed this.

@Mac Malone, it seems that after lean#8447 I have to add open Lean in the Mathlib lakefile, because LeanOption has moved from the Lake namespace to the Lean namespace.

Was this intentional?

If so, could you please add a deprecation?

[Kim Morrison]

Also, @Mac Malone, on nightly-2025-06-09 in the nightly-testing branch, from lake build I am seeing output like

⣻ [860/6820] Running mathlib/Mathlib:default

where the number keeps counting up, but without ever showing a change in what is being built. (While Aesop was building I was seeing individual files.)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (30b4d6e87eaaa93450a25e8ad795bf3596275589).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Mac Malone, the Lean.Options API seems to have changed quite a bit. Could you confirm that adfa721e97b on the nightly-testing branch is in accordance with your intentions?

[Mac Malone]

@Kim Morrison LGTM! Sorry for not catching this myself. I overlooked the fact that despite it succesfully triggering the mathlib testing bot, it never actually completing and posted a comment. I will add an export in Lake for LeanOption.

[Mac Malone]

Done in lean4#8701.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (30b4d6e87eaaa93450a25e8ad795bf3596275589).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

Hmmmzz, progress I guess. But now something's wrong with the cache of Archive and Counterexamples.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0e832cb41d406dc3c36bccead1fb0f1015f53ca7).
You can git fetch; git checkout nightly-testing and push a fix.

[Damiano Testa]

Johan Commelin said:

Hmmmzz, progress I guess. But now something's wrong with the cache of Archive and Counterexamples.

This looks like the same error reported at #mathlib4 > Post-Build Step failing.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ec6233852527a58479b0ff9fbe8335e1a8f221f5)

[Johan Commelin]

Marvelous!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5db2d4df25746b0b19b588e0d6be79ed4da95278).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

The nightly failed to be released because of a network issue: https://github.com/leanprover/lean4/actions/runs/15552859159/job/43793596273. And this part of the workflow does not work when retriggered.

[Johan Commelin]

@Sebastian Ullrich Do you have a suggestion how to get this back on track? Or do we just wait it out for one day?

[Kim Morrison]

The same issue is now occurring in the pr-release.yml action: https://github.com/leanprover/lean4/actions/runs/15557339238/job/43801116160

[Kim Morrison]

Claude suggests chainging to use ncipollo/release-action@v1, or just run a shell script:

  run: |  # <-- Raw shell commands, not using any action
    gh release create pr-release-${{ steps.workflow-info.outputs.pullRequestNumber }} \
      --repo ${{ github.repository_owner }}/lean4-pr-releases \
      --title "Release for PR ${{ steps.workflow-info.outputs.pullRequestNumber }}" \
      artifacts/*/*
  env:
    GH_TOKEN: ${{ secrets.PR_RELEASES_TOKEN }}

I'm having trouble guessing the underlying cause... I can take a look in about 45 minutes if no one gets there first. :-)

[Sebastian Ullrich]

Apparently they simply broke it: https://github.com/softprops/action-gh-release/issues/628. Could someone pin our version?

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ec6233852527a58479b0ff9fbe8335e1a8f221f5)

[Johan Commelin]

@Sebastian Ullrich voila: https://github.com/leanprover/lean4/pull/8710

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ec6233852527a58479b0ff9fbe8335e1a8f221f5)

[Kim Morrison]

Kim Morrison said:

Also, Mac Malone, on nightly-2025-06-09 in the nightly-testing branch, from lake build I am seeing output like

⣻ [860/6820] Running mathlib/Mathlib:default

where the number keeps counting up, but without ever showing a change in what is being built. (While Aesop was building I was seeing individual files.)

:ping_pong: @Mac Malone, not sure if you saw this, you replied to one of the three messages.

[Kim Morrison]

Kim Morrison said:

Mac Malone, the Lean.Options API seems to have changed quite a bit. Could you confirm that adfa721e97b on the nightly-testing branch is in accordance with your intentions?

@Mac Malone similarly here.

[Mac Malone]

@Kim MorrisonOh, sorry, I did see them! As you noted, I replied to the later one (about the Options API. However, I entirely forgot about the former (the progress) in the process. Thanks for reminding me! I will take a look into the progresss issue soonish (probably tomorrow).

[Kim Morrison]

@Mac Malone, you replied to the problem about the missing export, but never said anything about the changes in adfa721e97b. Could you confirm on that one?

[Mac Malone]

@Kim Morrison The changes seem fine to me. (That's what the "LGTM!" from the reply was referring to. I probably should have quote replied and worded things better to make that more obvious. :sweat_smile:)

[Kim Morrison]

All good. Just wasn't sure which subset of things you were responding to. :-)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ec6233852527a58479b0ff9fbe8335e1a8f221f5)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (507556cae9ed2b8419fe8a42dad90c7f63c512ae)

[Kim Morrison]

Uh oh... On nightly-testing now, lake build --no-build takes several minutes (instead of several seconds) to complete.

[Mac Malone]

@Kim Morrison Is this new today?

[Kim Morrison]

Seems to be. I will check a few previous nightlies now.

[Kim Morrison]

I don't see anything particularly scary: perhaps lean4#8654?

[Kim Morrison]

Nope, the problem is present on nightly-testing-2025-06-09 as well.

[Mac Malone]

There was a performance regression in Lake's lean --setup integration that I am currently investigating.

[Mac Malone]

If that is this, I am suprised this did not come up in our previous discussion.

[Kim Morrison]

I haven't been building nightly-testing locally the last few days.

[Kim Morrison]

And we don't have any CI that would detect this. (We should!)

[Kim Morrison]

(i.e. just set a maximum time in the existing --no-build check)

[Mac Malone]

Ah, okay, then I am currently working on that. Hopefully I will have a fix tomorrow.

[Kim Morrison]

nightly-testing-2025-06-05 is fine, so it is somewhere in between those

[Kim Morrison]

Okay. If you won't have a fix before the nightly is cut, could you revert it for now? nightly-testing is unusable right now.

[Mac Malone]

If necessary, sure. Just to make sure this is the issue, how did you encounter the progress issue on nightly-testing without running into this?

[Kim Morrison]

Good question. I assume that I'd actually made changes, and so expected it to be slow because it was actually building. It's only today that I realised it was slow even without changes.

[Mac Malone]

That woould fit with what I understand of the issue. It appears to be a fixed startup cost, so any signficant build work will outpace it.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (507556cae9ed2b8419fe8a42dad90c7f63c512ae)

[Mac Malone]

Reversion of the main change that should be causing this is at lean4#8736. I am benching it now to verify that this fixes the performance.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (507556cae9ed2b8419fe8a42dad90c7f63c512ae)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0665576140e9230df6e2705ab13a40e1f97e1e75).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dd1b855f6545ac5892b13fe6c80ff6098ebc7fa6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (6763a6b949fef28608b5924d78e64443b00a4de5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (41813ea0472a1e7b0b67e059628141ddaffd08c6).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I've added an adaptation note. The simpNF linter is saying:

/- The `simpNF` linter reports:
SOME SIMP LEMMAS ARE NOT IN SIMP-NORMAL FORM.
see note [simp-normal form] for tips how to debug this.
https://leanprover-community.github.io/mathlib_docs/notes.html#simp-normal%20form -/
-- Mathlib.Analysis.Normed.Operator.Banach
Error: /home/lean/actions-runner/_work/mathlib4/mathlib4/pr-branch/Mathlib/Analysis/Normed/Operator/Banach.lean:366:1: error: @ContinuousLinearMap.equivRange_symm_toLinearEquiv Left-hand side simplifies from
  (ContinuousLinearMap.equivRange hinj hclo).symm.toLinearEquiv
to
  (ContinuousLinearMap.equivRange hinj hclo).symm
using
  dsimp only [*, @ContinuousLinearEquiv.toLinearEquiv_symm]

but making that change doesn't typecheck.

@Johan Commelin, any ideas there?

[Johan Commelin]

Hmmz, shall we remove @[simp] and leave an adaptation note that it should be restored?

[Kim Morrison]

For now I added nolint simpNF. I think either is fine?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e90c049dd73c386a1fd3aedc82ac15728986b8ba).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ff8c43ce37dd0f416618df7d95c8a7d497efa4ba)

[Sébastien Gouëzel]

I've pushed a fix: since #25604, the normal form has symm to the end, so I have replaced (ContinuousLinearMap.equivRange hinj hclo).symm.toLinearEquiv with (ContinuousLinearMap.equivRange hinj hclo).toLinearEquiv.symm.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (079d907947d1f6e81eb9578652c34da168a0d886).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ff8c43ce37dd0f416618df7d95c8a7d497efa4ba)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (04defa097355b5354bc614e78d62381915de05c3).
You can git fetch; git checkout nightly-testing and push a fix.

[Kyle Miller]

Heads up: I thought I saw that lean4#7395 had a clean mathlib build and merged, but I forgot that the bot shows :check: when there are linter warnings. It's just a handful of discretionary shows. I figure at this point @Robin Arnez or someone else can follow up with this discussion and change the unused tactic linter, or otherwise comment these shows out with adaptation notes.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (ff8c43ce37dd0f416618df7d95c8a7d497efa4ba)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8bbb5cb82be152d13e59d682bb718b170227693d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8bbb5cb82be152d13e59d682bb718b170227693d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3117eecd5f446dcb117140921e74e5f123cd6c31).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (dfb6ce9dacf6008f7e8605573b93834bb4f64388).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

There seems to have been some miscommunication, I'm sorry; but I maybe wanted to wait a bit with #25749 until there was clear consensus about whether we want to lint show (but now we don't have an adaptation for the original PR!). Now I feel like the best way to go is to make batteries build (batteries#1273) and then just fix the unused tactic linter for the nightly builds. #25749 would then go towards master and can be merged (or closed) when there is clear consensus whether this linter should or should not exist.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8e87a39073921d284b41aa374f987d1cb8389034).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8e87a39073921d284b41aa374f987d1cb8389034).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

A small fix was required for lean#8660.

[Kim Morrison]

@Sebastian Ullrich, I suspect this one is for you:

info: Mathlib/LinearAlgebra/Reflection.lean:238:0: PANIC at Lean.EnvExtension.modifyState Lean.Environment:1354:13: environment extension is marked as `mainOnly` but used in async context 'Module.reflection_mul_reflection_zpow_apply'

[Kim Morrison]

I have removed all the no-op show statements on nightly-testing. If we decide we want to revert this later, it is all contained in f076c124d254e3396ad236f987b1920803416674.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (500dfe433a366d409a53a24ac6d8707b1fad58df).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (121a02334ffc8d465d6b417b157ba649f37504ec).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b91260d8f8793f387f404608e5e069acebafd127).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b91260d8f8793f387f404608e5e069acebafd127).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Kim Morrison said:

Sebastian Ullrich, I suspect this one is for you:

info: Mathlib/LinearAlgebra/Reflection.lean:238:0: PANIC at Lean.EnvExtension.modifyState Lean.Environment:1354:13: environment extension is marked as `mainOnly` but used in async context 'Module.reflection_mul_reflection_zpow_apply'

Thanks for the ping, build succeeds with #8783

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9c220e68f000c0ef821bc446fbd62743dbe25771).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (50e49dc2e9c35748e2313071052bdb6dd16a6fe5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ad1b437587a1dbcc0b22624cb0ae9208d206508a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

lean#8783

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9b0c6a877559b4bb45860affaeafb705cee085aa).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c1abdfac7d2c45c0b4498f4bcdb3eb326cc8dd1e).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Unfortunately we didn't get a nightly-2025-06-15 because of an unrelated CI failure, so we're still broken because of the panic.

[Sebastian Ullrich]

I'll put in a workaround and retrigger

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d6898ad6d18b35cc86b820cf9e974f91464f9956).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d6898ad6d18b35cc86b820cf9e974f91464f9956).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d6898ad6d18b35cc86b820cf9e974f91464f9956).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

linting failures

[Sebastian Ullrich]

I had to push an empty commit because of #nightly-testing > bot not running CI

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (0e9bcbf7a1008b0b88cad6c59abf12bed4cfe3b8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (76bbcf04d10aa01ae77c716c8962840dc6eb708e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e6f52a442b52ac7fddcb4ae4818e1751c6efd3c9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (948d9cf87c819cd70097ea14acdd04c1e1662205)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (84e70de5507db0f1c6bcffaf2be6aa8aad81fc27).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (84e70de5507db0f1c6bcffaf2be6aa8aad81fc27).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (84e70de5507db0f1c6bcffaf2be6aa8aad81fc27).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1a83ec9d7a74f9063014411a530bdbdbb3b86a38).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (db52f0992d294d2273c2eff06bc4cfac13460b0c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (953440dbe5b77d9a00996d6c216a2605a70b5560).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (953440dbe5b77d9a00996d6c216a2605a70b5560).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (442b5ff8c6f5f3422ddb2f05dc995312c0151133)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (260a59832ccf9c8e06fb1c814c7ff52904b449a3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (2b6e3d707757364f10504dedab0ffb33151a128e).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

List.eraseIdx_insertIdx seems to have been removed without deprecation!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d9d3b4ca93885992bd5e90cea0920539876590a7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d9d3b4ca93885992bd5e90cea0920539876590a7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b28d99bfc16a696dbadad5aa76994b5e18077878)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (1e3fd2ae72c72afc312889b3be4d1e9aba69f048).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b28d99bfc16a696dbadad5aa76994b5e18077878)

[Kim Morrison]

Robin Arnez said:

eraseIdx_insertIdx

@Robin Arnez, could you clarify? It seems to have been deprecated:

theorem eraseIdx_insertIdx_self {i : Nat} {xs : Array α} (h : i ≤ xs.size) :
    (xs.insertIdx i a).eraseIdx i (by simp; omega) = xs := by
  rcases xs with ⟨xs⟩
  simp_all

@[deprecated eraseIdx_insertIdx_self (since := "2025-06-15")]
theorem eraseIdx_insertIdx {i : Nat} {xs : Array α} (h : i ≤ xs.size) :
    (xs.insertIdx i a).eraseIdx i (by simp; omega) = xs := by
  simp [eraseIdx_insertIdx_self]

I would like to add a new unconditional eraseIdx_insertIdx, but I ran out of time while trying to work out what the actual statement is. If anyone feels like filling that hole, much appreciated!

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (b28d99bfc16a696dbadad5aa76994b5e18077878)

[Robin Arnez]

I'm referring to List.eraseIdx_insertIdx

[Kim Morrison]

Thanks: lean#8863.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (294bb3092e09c13589badb26029975a8c23bace3)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (15948de6846fca0ff7d814eb3e5e53333f8f98d9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (15948de6846fca0ff7d814eb3e5e53333f8f98d9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7156927d977c9f8907dbbc26c03343d9ca0e8ebc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a764cea413f461f95d178ff2b45603eb23325c9f)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4516ade29687c518f78674687cbe5054dff0b6de).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8fea0ef4f2fb3e534fb87a0bb0b54ef0b3e2b1ca).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (11c6fbd61e7ad45f5b09ec03688b1faebd8c6bc5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (11c6fbd61e7ad45f5b09ec03688b1faebd8c6bc5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (a764cea413f461f95d178ff2b45603eb23325c9f)

[github mathlib4 bot]

:check: The latest CI for Mathlib's branch#nightly-testing has succeeded! (94511d1ad61c75e054cf7e2e341c4fa856c762e3)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (bee89f3673fb76a7d18eba011b7faf678a6f5888).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (3a374b3d383130b67c070244bb80e8076a3162e8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c3b173fdbb090edd2cd442ffce037920b2c90c57).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c3b173fdbb090edd2cd442ffce037920b2c90c57).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

github mathlib4 bot schrieb:

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c3b173fdbb090edd2cd442ffce037920b2c90c57).
You can git fetch; git checkout nightly-testing and push a fix.

#26246

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c3b173fdbb090edd2cd442ffce037920b2c90c57).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e2f8bf7b23d89378826e81b4404891f7291233a8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e2f8bf7b23d89378826e81b4404891f7291233a8).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Jovan Gerbscheid (or perhaps @Floris van Doorn), could you take a look at the failures in RefinedDiscrTree on nightly-testing?

If you make a PR to nightly-testing and ping me here, we will merge it asap.

[Cameron Zwarich]

@Kim Morrison I'm pretty sure this is fallout from lean4#8577. I can't push to the Mathlib PR branch, so I put the changes here:
https://github.com/leanprover-community/mathlib4/compare/lean-pr-testing-8577...zwarich:mathlib4:lean-pr-testing-8577
In particular, the fix for this RefinedDiscrTree issue:
https://github.com/leanprover-community/mathlib4/commit/a44064ca904086697218920bcd4231a8e0aa83a3

[Kim Morrison]

Thanks, I'll merge now.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e2f8bf7b23d89378826e81b4404891f7291233a8).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Unfortunately these breakages are due to #8745. I've asked @Sebastian Graf to investigate.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e2f8bf7b23d89378826e81b4404891f7291233a8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (087a0dcf4e085d7b18f0edfa58feec58455e4811).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Graf]

Sorry about that! Reverted in #8926 until I debug this on Monday

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (69f66e45f2b260a05ad7f57389dc0e26d1625209).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (98757f740ed946f6a907f8a9768bf475d7a02200).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (e004dbe1b44429f881c0052f44c5175ab3b6d774).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (27dacf7872f1687d629b4677edd14530c27f9bb3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ffbf9db0c1b1c5d1693997bbc44633b032fa0c09).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (4f1603b00f5c3e0e43d0daf234c4199c342782db).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7585da85249b3fdfaaeced1967bcf87fa72d3526).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (7585da85249b3fdfaaeced1967bcf87fa72d3526).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (df94cc8aed24878666997fe1ea7fc2f2ffab7770).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8425daf3115a1d977ed66db14278891ebcd86622).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (f609d6347c79cace43753bbe8228ba33dc0bb4bb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ffaf539d0a3f5686921aafef32ac8b41ec5f9070).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (8910701cb7c78acaa4cabdd0e94b8bd721a4dd51).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (24c007389a7c2b221fa6214ae41c90d79a169650).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (9bb19c991ac039c5efcd04309b4d6cbd088a1d30).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c5a9e9845d0661a9e75758afda16a8f92724b809).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

github mathlib4 bot said:

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (c5a9e9845d0661a9e75758afda16a8f92724b809).
You can git fetch; git checkout nightly-testing and push a fix.

Just noting that this message (correctly!) refers to a commit on the nightly-testing branch on the new mathlib4-nightly-testing fork.

[Kim Morrison]

Be careful for now that these branches are duplicated, and not automatically sync'd across the forks. Once we're got green and validated a few more things, we'll be deleting everything relating to nightly-testing from the main repo.

[Kim Morrison]

I've disabled unusedSimpArgs in Batteries for now.

[Kim Morrison]

If any Batteries contributors would like to re-enable it (by fixing its suggestions) that would be lovely.

[Kim Morrison]

I've fixed a deprecation in Aesop, and resolved the unusedSimpArgs linter results in Aesop (i.e. left that option on).

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ddeb36463f3add2f7f51064165a94955f6a63488).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Oof, I've fixed the grind instance problems, the one remaining one is that MathlibTest/zmod.lean is failing:

-- A Mersenne exponent, chosen so the test below takes no more than a few seconds
-- but should be enough to trigger a stack overflow from a non-tail-recursive implementation
-- of exponentiation by repeated squaring.
def k := 11213
def p := 2^k - 1

set_option exponentiation.threshold 100000 in
-- We ensure here that the `@[csimp]` attribute successfully replaces (at runtime)
-- the default value of `npowRec` for the exponentiation operation in `Monoid`
-- with a tail-recursive implementation by repeated squaring.
/-- info: 1 -/
#guard_msgs in
#eval (37 : ZMod p)^(p-1)

Any ideas which change could have triggered this?

[Kim Morrison]

Candidates:

• I've messed up the typeclasses somehow in making grind changes?
• The new compiler??

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (d5fc04be39b3c3d14232958d6f67a4bbedb94f1b).
You can git fetch; git checkout nightly-testing and push a fix.

[Cameron Zwarich]

Kim Morrison said:

Oof, I've fixed the grind instance problems, the one remaining one is that MathlibTest/zmod.lean is failing:

-- A Mersenne exponent, chosen so the test below takes no more than a few seconds
-- but should be enough to trigger a stack overflow from a non-tail-recursive implementation
-- of exponentiation by repeated squaring.
def k := 11213
def p := 2^k - 1

set_option exponentiation.threshold 100000 in
-- We ensure here that the `@[csimp]` attribute successfully replaces (at runtime)
-- the default value of `npowRec` for the exponentiation operation in `Monoid`
-- with a tail-recursive implementation by repeated squaring.
/-- info: 1 -/
#guard_msgs in
#eval (37 : ZMod p)^(p-1)

Any ideas which change could have triggered this?

I went back to check and this fails on the branch where I had the new compiler. This is failing with a stack overflow in Nat.binaryRec._redArg. The comment in the test indicates that this implementation is not supposed to be used, due to csimp replacing it with a more efficient implementation. The new compiler definitely supports csimp. In this case, the actual csimp seems to be coming from a to_additive tactic, which might be part of the complication:

@[to_additive (attr := csimp)]
theorem npowRec_eq_npowBinRec : @npowRecAuto = @npowBinRecAuto := by
  funext M _ _ k m
  rw [npowBinRecAuto, npowRecAuto, npowBinRec]
  match k with
  | 0 => rw [npowRec, npowBinRec.go, Nat.binaryRec_zero]
  | k + 1 => rw [npowBinRec.go_spec, npowRec_eq]

The new compiler does csimp replacement a bit earlier than the old compiler, but I also don't immediately see how this could be contributing.

[Kyle Miller]

I commented out this test and added an adaptation note.

Cameron Zwarich said:

The new compiler does csimp replacement a bit earlier than the old compiler

Maybe that phase isn't seeing through the instances? (I'm kind of surprised that this sort of csimp lemma ever worked!)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (b47dd848b7a0be8753fcc35794ffa18f026aadd2).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Okay, I think this may have been due to a missing secret, which I've just installed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5efd73a5d3ea04fdbd9cb7622b007778ae22d47c).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

failure was apparently a transient error? an rm -rf failed with "directory not empty"!?

[Cameron Zwarich]

Kyle Miller said:

I commented out this test and added an adaptation note.

Cameron Zwarich said:

The new compiler does csimp replacement a bit earlier than the old compiler

Maybe that phase isn't seeing through the instances? (I'm kind of surprised that this sort of csimp lemma ever worked!)

It's calling the npowBinRecAuto version, so the csimp is being applied. The issue seems to be that the call to npowBinRecAuto in Fin.instCommRing doesn't get specialized, and thus the call to Nat.binaryRec doesn't get specialized, and it doesn't become tail recursive.

[Damiano Testa]

Kim Morrison said:

failure was apparently a transient error? an rm -rf failed with "directory not empty"!?

I've seen this error on Zulip before: let me find it.

[Damiano Testa]

#mathlib4 > CI error

[Damiano Testa]

I don't know if it was resolved, though.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (5efd73a5d3ea04fdbd9cb7622b007778ae22d47c).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Should be resolved by #26335

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ddfb62ceafe025db4ebea0b95b4497d54f62e602).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (ee86d36ab1dd03463f288b0930f88dde5fc7f038).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (352c8fe70d2d824e56b42ae4eff3d81e12b02ad9).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

branch#nighly-testing is a dead link; does branch#leanprover-community/mathlib4-nightly-testing:nightly-testing work?

[Robin Arnez]

Hmm, no, well then nighly-testing branch?

[Bryan Gin-ge Chen]

I guess we could introduce a linkifier that overrides the usual behavior of branch# for things starting with branch#nightly-testing?

[Robin Arnez]

I think [nighly-testing branch](https://github.com/leanprover-community/mathlib4-nightly-testing/tree/nightly-testing) is the simplest solution here, otherwise we'd need to account for lean-pr-testing-nnnn, batteries-pr-testing-nnnn etc.

[Bryan Gin-ge Chen]

Ah, in that case we won't have to touch the linkifiers and can just modify the bot.

[Robin Arnez]

#26363

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (181035fc4b4f4906081d462bff8d3e8e1ed34cc8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's branch#nightly-testing has failed (952958955c177b70db52b9f0398b99c1d43b52e0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (fe308e4ca7d9774f565977000df41fcecd835e20).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d9ca23c0c7f6327cc2535dca0237925b270876b5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d9ca23c0c7f6327cc2535dca0237925b270876b5).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

This is still not retrieving oleans successfully, and I can't work out why. It looks like it is both uploading and downloading from the mathlib4-nightly-testing part of the cache.

[Kim Morrison]

:eyes: welcome here

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8499edf0ab8fee0f1a872b09aaefaff471ea205f).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

(New hypothesis; we're using expired tokens, asking for new ones now.)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (abc613d853099ef2d853d4f1d80415444f9a8e12).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Yay!

% lake exe cache get
Current branch: nightly-testing
Using cache from nightly-testing remote: leanprover-community/mathlib4-nightly-testing
Attempting to download 6883 file(s) from leanprover-community/mathlib4-nightly-testing cache
Downloaded: 1358 file(s) [attempted 1358/6883 = 19%]

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (a34e1c5f921ae3180b4b17d3e7f6dbe2fd429c64)

[Kim Morrison]

and lean4's nightly-with-mathlib branch has advanced to nightly-2025-06-25!

[Kim Morrison]

and testing integrated CI at lean#9009

[Johan Commelin]

Awesome!

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (a7a22988bfc0af71de347122a1f8e6921d34341e)

[Damiano Testa]

I just saw lean4#8626, which is great! It may cause some issues for the commandStart linter, since it was working around the pretty-printing of comments.

[Damiano Testa]

I think that it will make the code easier, but it may have broken some of its internal logic.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (07cfcb45828dd2b1853c54fca7b21615710b9274).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (a7a22988bfc0af71de347122a1f8e6921d34341e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6732e714d6e517f95987eb9a4a534c058e5c09d4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (ad22e744d4e452c699b7920037aaefd5c1b340a3)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (80e325d03e62156434a5ca14444ca6e62ca1ae6d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (67ea618eaa7da522864a1af4f72d040a9a2ab001).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5e3fdf53a6d5dff83adb5b845f49565174190848).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d9e205156e8e5455a1cb54740a0bd2a31cf329f0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (4e342cc3cce123c2f650d4b0aba684b3082653aa).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

test failures from error message changes

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (220e69382df066881c9670d59e46a8469781e95c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (0d70a64f5c7231677f7cf3f306c00a037bc9f1a7)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (232f6019633df4c5df35823b2a3aed5e3cc9e93e).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

New unused simps... :)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (0d70a64f5c7231677f7cf3f306c00a037bc9f1a7)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c79d633c61f6f1f22e16f1b496b558adb7fd76c0)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (944ea7b2547e7c9b17f597ba90967f79cbf217e9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b8a60b9f8f35da39b97573411ab1b45e9635dea7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (72d1975dc5e9aa6978e2746c94f24d0dc7d20d56).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c79d633c61f6f1f22e16f1b496b558adb7fd76c0)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (652ecde381fdeddf8cc064277ebeadf1d4ba8f6a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (4d3f9fc4f9a617e732cbc1e665c4459699c65c53).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (4d3f9fc4f9a617e732cbc1e665c4459699c65c53).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (89823940ea0b4649c7c323bb97d582b98701710f)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7336b4823df10e3e99f011ccd84868964cf5762b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (20c9066cc51942ee4e2b16102c272dd37b1c86d7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9bb543f12cbf71b988811ffb377bc4c0afd1edd1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (bbe8bf86d6e417b9a2d778249d89dbc03751cbc1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6a76d664e308892f6585150fa5ae16f699c5dff4).
You can git fetch; git checkout nightly-testing and push a fix.

[Matthew Ballard]

I wanted to see the logs for the post-build step to see the more verbose logs and confirm some things. But it hasn't reached there since the change. So I thought I poke at fixes but after cloning leanprover-community/mathlib4-nightly-testing, I cannot get lake exe cache get to do anything useful. Is this expected? Am I missing something?

[Kim Morrison]

We had some severe outages on nightly-testing the last 48 hours due to some release related bugs (the bug that results in rc2!)

[Kim Morrison]

I think the current run at https://github.com/leanprover-community/mathlib4-nightly-testing/actions/runs/15999671828 will be more informative / successful.

[Matthew Ballard]

What should lake exe cache get do?

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (db224c26fed68ca7bb97062baa775cfcd1b8c329)

[Kim Morrison]

Matthew Ballard said:

What should lake exe cache get do?

On these nightly-testing builds, lake exe cache get ought to be putting and retrieving the cache from the leanprover-community/mathlib4-nightly-testing cache.

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in the latest bump branch does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.
Current content:
This needs to be fixed for the nightly testing process to work correctly.

[Kim Morrison]

Hmm, this message seems to be mistaken. I'll make the reporting more robust here.

[Kim Morrison]

#26605

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (79c95d5ec83b4c065e706977a13146ee8af2b744).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d2e1782f49535d6a7a965e46f4bd914d9917d24c).
You can git fetch; git checkout nightly-testing and push a fix.

[Matthew Ballard]

Kim Morrison said:

Matthew Ballard said:

What should lake exe cache get do?

On these nightly-testing builds, lake exe cache get ought to be putting and retrieving the cache from the leanprover-community/mathlib4-nightly-testing cache.

In CI this is achieved with the repo flag being set, if I just check out the branch on my clone of the fork, I assume it should do the same. But it does nothing. Is lake exe cache get not part of the usual workflow for fixes or am I missing something?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d2ae93ab36e184f7f5149c86f58a04f1c5d6e8f7).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I think someone is missing something. The git checkout nightly-testing; lake exe cache get usually results in a successful retrieval of at least something for me.

[Kim Morrison]

e.g. just now:

% get nightly-testing
warning: refname 'nightly-testing' is ambiguous.
Switched to branch 'nightly-testing'
Your branch is up to date with 'nightly-testing/nightly-testing'.
remote: Enumerating objects: 3, done.
remote: Counting objects: 100% (1/1), done.
remote: Total 3 (delta 0), reused 0 (delta 0), pack-reused 2 (from 1)
Unpacking objects: 100% (3/3), 1.73 KiB | 443.00 KiB/s, done.
From github.com:leanprover-community/mathlib4-nightly-testing
   d2e1782f495..d2ae93ab36e  nightly-testing -> nightly-testing/nightly-testing
Updating d2e1782f495..d2ae93ab36e
Fast-forward
 lake-manifest.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
info: plausible: checking out revision 'fde3fc21dd68a10791dea22b6f5b53c5a5a5962d'
info: importGraph: checking out revision '856a8cb8908af109aac3ce13e2b4f866f3d75199'
info: proofwidgets: checking out revision '2d6d124aedc3023506a67e50bfd5582384d6bd17'
info: aesop: checking out revision 'a1b5d59f433c6ec2b318192bd910c257a3c62be8'
info: Qq: checking out revision '56047303fce0d07dcae7e3e91b17eef67d11f6f4'
info: batteries: checking out revision '7f8c95c59c246ae4a85315de3e536943ea22ae08'
info: Cli: checking out revision '1604206fcd0462da9a241beeac0e2df471647435'
Current branch: nightly-testing
Is nightly-testing a remote URL? false
Extracted repo from remote URL:
Using cache from nightly-testing remote: leanprover-community/mathlib4-nightly-testing
Attempting to download 6895 file(s) from leanprover-community/mathlib4-nightly-testing cache
Downloaded: 6884 file(s) [attempted 6895/6895 = 100%] (99% success)
Attempting to download 11 file(s) from leanprover-community/mathlib4 cache
Downloaded: 0 file(s) [attempted 11/11 = 100%] (0% success)
Warning: some files were not found in the cache.
This usually means that your local checkout of mathlib4 has diverged from upstream.
If you push your commits to a branch of the mathlib4 repository, CI will build the oleans and they will be available later.
Alternatively, if you already have pushed your commits to a branch, this may mean the CI build has failed part-way through building.
Decompressing 6884 file(s)

[Matthew Ballard]

Huh. Same behavior. Thanks. Not sure what happened before.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (748fb4bc7e253be9f444f46fca8613220c3b021d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (ba1eddb9838ecfb4e994d061ad19a7f8cae7c2ff)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (cff489e0715ed8f943a2ea8b0a3bbc208170f4c8)

[Kim Morrison]

Just a heads up that lean-pr-testing-9168 on the leanprover-community/mathlib4-nightly-testing fork will need merging into nightly-testing this evening.

I'm not sure if the automatic merge bot will pick this one up, as the branch was created manually.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (cff489e0715ed8f943a2ea8b0a3bbc208170f4c8)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5c2779d74ccb0a2f3b50f5751e27428adad7ff7b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cd86023575fe28099ea9d80ce23a30ac02542abf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a3fea1ddef70d4200743be14edfc03df9cb8cd76).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b8fddd0faf04bb44ed9b787f88211c62754b2151).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ded554dcebac64917b21a78470f209290e8586b4).
You can git fetch; git checkout nightly-testing and push a fix.

[Cameron Zwarich]

Does anyone know how to fix these grind errors? It would be nice to get this building again.

[Robin Arnez]

As far as I know, these were fixed on master but the merge failed (?)

[Robin Arnez]

For reference: 19f4ef2

[Kevin Buzzard]

But #26715 is merged?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (318f85e0600205f8243c0c4e581d06ea4488dfaf).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Yeah I mean they didn't properly merge into nightly-testing

[Robin Arnez]

For some reason...

[Robin Arnez]

Something like a git cherry-pick 19f4ef2c52b278bd96626e02d594751e6e12ac98 might be enough to get it working again

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3c3a510d8046e29080581404a73830e14f4ff250).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Could I request write access for nightly-testing? (for fixing this and for other lean PRs in the future)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a47fcb8fbcb494f44b8d3d6fc2cf88907052e7f9).
You can git fetch; git checkout nightly-testing and push a fix.

[Kevin Buzzard]

@Robin Arnez you should have write access to mathlib non-master branches now

[Robin Arnez]

Hmm, I'm not interested in mathlib, but mathlib4-nightly-testing, if anyone could do that

[Kevin Buzzard]

Oh apologies, I hadn't realised that this was a different repo.

[Kevin Buzzard]

@Robin Arnez invitation sent!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7fcf4f67c8ffc416ea20d884f56a08a9d24f27e5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (66a4a8e7884856f2183c6023d9b39c5483466d67).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e6a92dfeea954dfe3f945764858b3952d3b36914).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

nightly#11 is building!

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (15ebf28712be5f7c5416c9ef6f220b8c05c3d813)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7a16afbc8072070a5089e456a34c56f666f09dde).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

This seems to be a regression of lean#9305... (universe problem..?)

[Patrick Massot]

This looks really mysterious. Michael and I investigated a bit, but we give up. Everybody should feel free to clone the nightly branch and create a file containing:

import Mathlib.Data.Finset.Attr
import Mathlib.Data.Finset.Dedup
import Mathlib.Data.Finset.Empty
import Mathlib.Data.Multiset.FinsetOps

open Finset Multiset

section Insert

variable [DecidableEq α] {s t : Finset α} {a b : α} {f : α → β}

/-- `insert a s` is the set `{a} ∪ s` containing `a` and the elements of `s`. -/
instance : Insert α (Finset α) :=
  ⟨fun a s => ⟨_, s.2.ndinsert a⟩⟩
@[simp]
theorem mem_insert : a ∈ insert b s ↔ a = b ∨ a ∈ s :=
  mem_ndinsert

theorem mem_insert_self (a : α) (s : Finset α) : a ∈ insert a s :=
  mem_ndinsert_self a s.1

theorem mem_insert_of_mem (h : a ∈ s) : a ∈ insert b s :=
  mem_ndinsert_of_mem h

@[simps!]

def insertPiProd (f : α → Type*) (x : Π i ∈ insert a s, f i) : f a × Π i ∈ s, f i :=
  (x a (mem_insert_self a s), fun i hi => x i (mem_insert_of_mem hi))

/-- Combine a product with a pi type to pi of insert. -/
def prodPiInsert (f : α → Type*) {a : α} (x : f a × Π i ∈ s, f i) : (Π i ∈ insert a s, f i) :=
  fun i hi =>
    if h : i = a then cast (congrArg f h.symm) x.1 else x.2 i (mem_of_mem_insert_of_ne hi h)

/-- The equivalence between pi types on insert and the product. -/
def insertPiProdEquiv  {s : Finset α} (f : α → Type*) {a : α} (has : a ∉ s) :
    (Π i ∈ insert a s, f i) ≃ f a × Π i ∈ s, f i where
  toFun := insertPiProd f
  invFun := prodPiInsert f
  left_inv _ := by
    sorry
  right_inv _ := by
    refine Prod.ext ?_ sorry
    · expose_names
      clear s_1 a_1 f_1 t b β has
      simp only [insertPiProd_fst]
      sorry

theorem insertPiProdEquiv.extracted_1 {α : Type*} [inst : DecidableEq α] {s : Finset α}
  (f : α → Type*) {a : α}  (x : f a × ((i : α) → i ∈ s → f i)) :
  (insertPiProd f (prodPiInsert f x)).1 = x.1 := by
  simp only [insertPiProd_fst]
  simp only [prodPiInsert, ↓reduceDIte, cast_eq]

The last theorem is extracted from the previous one and works. But the previous one fails.

[Patrick Massot]

The goal states look identical even with pp.all

[Patrick Massot]

The error message is

(kernel) application type mismatch
  @prodPiInsert α inst✝ s f a x i a✝
argument has type
  i ∈ insert a s
but function has type
  i ∈ insert a s → f i

[Eric Wieser]

@Robin Arnez is correct, simp -congrConsts only [insertPiProd_fst] works fine

[Robin Arnez]

It's not a universe problem but an instance problem

[Robin Arnez]

but it is because of the congr consts

[Eric Wieser]

Well, I mean you're correct that that PR is responsible

[Eric Wieser]

#check @prodPiInsert.congr_simp is enough to get the crash

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3d1bc5643ea305c9d448b373a6d849cea86ce3f8).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

lean4#9318 might be enough to fix this. The problem was that proofs could depend on Decidable instances but they weren't being rewritten:

def test {α : Type u} [DecidableEq α] {x : α} (h : (x == x) = true) : Nat := sorry

turned into

theorem test.congr_simp {α : Type u} {inst : DecidableEq α} [inst' : DecidableEq α] {x x' : α} (hx : x = x') (h : (x == x) = true) :
    @test α inst x h = @test α inst' x' h := ...

[Robin Arnez]

The fix was to just fix Decidable parameters if proofs depend on them:

theorem test.congr_simp {α : Type u} [DecidableEq α] {x x' : α} (hx : x = x') (h : (x == x) = true) :
    @test α inst x h = @test α inst x' h := ...

This isn't ideal (in particular in other cases) but at least works

[Eric Wieser]

Will we see similar trouble for other typeclasses like Fintype?

[Robin Arnez]

Decidable is hardcoded specifically to generate stuff like {inst : DecidableEq α} [inst' : DecidableEq α] to allow things like

def abc (p : Prop) [Decidable p] : Nat := sorry

to use

theorem abc.congr_simp {p p' : Prop} (h : p = p') {inst : Decidable p} [inst' : Decidable p'] :
    @abc p inst = @abc p' inst' := ...

Fintype could in theory get similar treatment but doesn't because the generation code specifically checks docs#Lean.Meta.ParamInfo.isDecInst

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6b84a83a77c7ad02d00f48e07f83be8554d3d3e8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (18e1516b655d08e2d7b18b2f47dd73d9040ca6f9).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

This is failing with several errors of the following form:

error: Mathlib/Algebra/Group/Submonoid/Operations.lean:667:2: @[to_additive] failed. Type mismatch in additive declaration. For help, see the docstring of `to_additive.attr`, section `Troubleshooting`. Failed to add declaration
AddMonoidHom.map_mrange:
unknown constant 'AddSubmonoid.map.congr_simp'
error: Lean exited with code 1

[Johan Commelin]

Does anyone know how to fix this?

[Sebastian Ullrich]

Likely related to #9305, which started introducing these constants. I'd have to refresh my memory on how to_additive is supposed to handle them; maybe AddSubmonoid.map does not exist yet at that point?

[Johan Commelin]

It should exist already. Because we're working on map_mrange. So {Add}Submonoid.map is from quite a bit earlier.

[Sebastian Ullrich]

I'll take a quick look

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2185648684a1e29eea950e4ef6775d509f4f833f).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

A #print AddSubmonoid.map.congr_simp before fixes it :rolling_on_the_floor_laughing: ... so probably some incorrect metaprogramming API being used

[Sebastian Ullrich]

This might be fixed by #9300, let's test that

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b69cf3b739a4a81aa130b6a9a929244fc38ff861).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Sebastian Ullrich said:

This might be fixed by #9300, let's test that

It didn't, but I pushed a Mathlib-side changes that fixes at least the first occurrence

[Johan Commelin]

Thanks!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (feb37124118c837cd1a435044964daed952faa4b).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

There's also some whacky change with simp...

error: Mathlib/Algebra/BigOperators/Ring/Finset.lean:125:6: (kernel) application type mismatch
  Pi.cons s a b f a' h
argument has type
  a' ∈ insert a s
but function has type
  a' ∈ insert a s → δ a'

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (99ff50ea195c2751509e595d56b079dd94354e7c).
You can git fetch; git checkout nightly-testing and push a fix.

[Eric Wieser]

That one was identified already in another thread, it's to do with the congruence lemmas being illegal

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b8f4aea6110b56abedade4d7d75aa18804f0512e).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Eric Wieser said:

That one was identified already in another thread, it's to do with the congruence lemmas being illegal

What thread?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (38f7e1292c9e93fd6f374095429b0c907a87f253).
You can git fetch; git checkout nightly-testing and push a fix.

[Patrick Massot]

I think Eric means #nightly-testing > Mathlib status updates @ 💬

[Patrick Massot]

which is the same thread but an earlier message.

[Eric Wieser]

And lean4#9318 was the proposed fix

[Johan Commelin]

And Leo just merged lean4#9395 which should also fix this

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a7a7ce073039c7c472592d31dfb972b61e196efc).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

$ lake exe cache get
... snip ...
If you push your commits to a branch of the mathlib4 repository, CI will build the oleans and they will be available later.

That sentence needs some updating. But grepping through the source, I didn't find it.

[Johan Commelin]

I'm confused by the :cross_mark: from CI. Locally nightly-testing seems to build fine.

[Sebastian Ullrich]

It's #nightly-testing > bot not running CI again, super confusing

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (da62c86042859cdb68ba036dd10a1348f4563127).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

Anyways, I'm still getting

error: Mathlib/Combinatorics/SimpleGraph/Turan.lean:258:35: (kernel) application type mismatch
  @IsTuranMaximal V inst✝³ G inst✝¹
argument has type
  DecidableRel G✝.Adj
but function has type
  [DecidableRel G.Adj] → ℕ → Prop

on the latest nightly...

[Sebastian Ullrich]

I reverted my workarounds, this failure actually looks a bit different from the others. Could you check whether it is the only one? We should report it in that case.

[Sebastian Ullrich]

And feel free to reapply the workaround in the meantime

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c1264bd85e7c6473bbf1a7a24a3ea1b056e6aa79).
You can git fetch; git checkout nightly-testing and push a fix.

[Johan Commelin]

@Sebastian Ullrich locally it indeed seems to be the only failure

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b621bb78764633b7ae68d98f9de15ac22805f731).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (3935d86a432f8ffe32f17ea00c12e090cf1df6de)

[Johan Commelin]

@Sebastian Ullrich Wait? What happened? Did you magically fix something?

[Sebastian Ullrich]

I only put my workarounds back in place for now

[Sebastian Ullrich]

That is, the ones Leo hasn't already addressed

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (3935d86a432f8ffe32f17ea00c12e090cf1df6de)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (44e5df9a4f8aaaf07d6ff1be692c0cf06c1d48a6)

[Robin Arnez]

Did this break for some reason?

[Robin Arnez]

Some outdated tokens or something?

[Bryan Gin-ge Chen]

Uh oh, I tried to refresh one of the tokens but I may have screwed something up. Let me check.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (20145bdb2fe6ee3e430187b69b1597f83a85c49c).
You can git fetch; git checkout nightly-testing and push a fix.

[Bryan Gin-ge Chen]

OK, it's back now. Thanks for pointing this out, Robin!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (34a2f348f0b09367f34a550686e38d00b17bdc37).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b420ac7884e612813bb08447834f5d1511199dad).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c318e73ffde2c0cee9c110a0f5599326a038cdcf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6f2781891be2ca1de18fd1af1f58f46f29fcb734).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6e06a7a0f91ab256b935f84de538bf5e7c5e92f7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d8dfcdd20e0372c3c9c0e9d1e4a6d359b263de34).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (98272387219f06d50f58f9b43a6e5d566e20a69f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f641e8ef65cbf0b3bb058fd2132fa0ba210c0cc0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (95e6b1288b79201efe878b13170af923f9e5049e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9bbc530f4c22f15283466d7a6f84fd2e3421dab8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (04ce2295625838a375fbfe8a2048d583a9c2824a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (beae12d2f599bfd9cccaa108db63eb42864cf6c8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (08872da5eaa35fa7972f97f1f41efd1b64c0c8f4)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (08872da5eaa35fa7972f97f1f41efd1b64c0c8f4)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (91fc2ce00feb3e9969154d3fcb0606b6d097f5be).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1f9ac127232cfd3a61b68dd853a800d3640ef3a6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cab90a41d93b59b75c90e6678bd1790cb5a8e0b5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6346f82037a4c5ff90909ec00dd88abec281d5ff).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (de511720dc870f3c2ebed9dd41f91d964ae27dca).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d171db5a72b9542ade85a31277a9b02bf056720d).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I made a mistake in changing the definition of Lean.Grind.Field, nightly-testing will be broken until the new nightly in a few hours.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (166f090148fb24cb3c48e821f26ef576ce1fca6f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5d2b55f7404a021f0ca43144d6070cb4c24fa61d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (15c20f8e14302f8100c32c69e6dedccce114e2ac)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (33579c0836cc407d6952852c274042552084c083).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e9eeaf4e7570a706db3e588f637f5a05cb637bb8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5927597cca90cf9013842f783f3b73514c103700).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Hmm cache doesn't work for nightly-testing PRs
Edit: it works but very inconsistently

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a210381b8190ab77d022686ce6ce9c2cfde31f5e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (fd71efe621a526c826578116ae29a06544ec2ac9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d2b567f6675d5724613e1f91c4415e48361ae3b2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (692c705661365aa50ec0db5fff36381f48ba36d9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (20c3cefcfb32013a122512123ee853a5e73423e8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (300d6ec2fdc036898f7ca0070bf5d91909df0bb2).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

We have a lot of lost commits in nightly-testing so I'm trying to restore them in nightly#16

[Robin Arnez]

My plan is to start with reverting everything to upstream/master and then slowly adding back nightly-testing changes until it starts building again

[Robin Arnez]

I'm currently stuck at Mathlib/Geometry/Euclidean/Congruence.lean and Mathlib/RingTheory/MvPowerSeries/NoZeroDivisors.lean

[Robin Arnez]

Mathlib/Geometry/Euclidean/Congruence.lean has an internal grind failure,

[Robin Arnez]

Mathlib/RingTheory/MvPowerSeries/NoZeroDivisors.lean has a simp_all failing that should (?) work

[Robin Arnez]

If anybody knows which nightly adaptations I might be missing, please tell me

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3ea0bcb9098126552ff4ffe6e78d36138dd579c3).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Update: Mathlib/Geometry/Euclidean/Congruence.lean is the only failing file now, might be a grind bug but I'm not sure

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a9b5dffa2820cffd96797f9450cc47bdbc5d4591).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Okay, managed to reduce the problem it to lean4#9562

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (33f427f4deb852e28bd134f729dd751b69a8cf32).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0da1986c08bded96f8e9297161bbda37de20b496).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (4187b61039f897afdf144a9c4a934ad4c74743bb).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Robin Arnez said:

We have a lot of lost commits in nightly-testing so I'm trying to restore them in nightly#16

What happened?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (018899d73b30601afd3a1ea99263ecf01e89fa3e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (874718b8e79f6f277d22ba29e0a54e9685998385).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cbd41d9ad73a021f2aacd25470808e21d34a562a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (04ee432c20cf5d81cde4db377ad870b2b82ae761).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f55f4ddb29bdfcf56213f642a0b43f781ea874fa).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Kim Morrison schrieb:

Robin Arnez said:

We have a lot of lost commits in nightly-testing so I'm trying to restore them in nightly#16

What happened?

I'm unsure but from what I can tell these changes have been merged but the conflict resolution just dropped them or something

[Robin Arnez]

Maybe we should change our conflict resolution strategy to "prefer mathlib4 files but keep lean-toolchain and lake-manifest.json"

[Kim Morrison]

Previously I've thought that it was less confusing if we preserved changes that have been made already on nightly-testing. It seems easier to me to restore things from master than to restore things from the nightly-testing history (precisely because the nightly-testing history is a messed, and unreviewed, whereas anything you take from master is "good").

[Robin Arnez]

Hmm well the problem was definitely also the failed merge commits before

[Robin Arnez]

It seems like 33579c0836cc407d6952852c274042552084c083 actually "merged" some of the changes that got lost

[Robin Arnez]

maybe this is a git quirk? Hmm, not sure

[Robin Arnez]

Oh yeah 33579c0836cc407d6952852c274042552084c083 messed up a lot

[Robin Arnez]

It was supposed to change 610 files but only changed 28

[Robin Arnez]

and there were only 2 conflicts?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (38c4645f88e4dd56395502f75374e86236879fdd).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Oh no the merge master to nightly only checks out the repository at depth 1

[Robin Arnez]

No wonder funny quirks occur

[Robin Arnez]

Okay #27533 should fix it for real this time

[Robin Arnez]

I just realized that because only that one merge commit was bad I should've just reverted that one and done the merge myself (nightly#18)

[Robin Arnez]

But we should probably merge #27533 before another "Merge master to nightly-testing" happens

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3151d47630dd4f675c9624fe18da6ebc5e557ae1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d18ab42522e7f5ac7552057f484e5bcc1cebc517).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (29dfa79b7e340b8963af06e25f525a8343e501ca).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d2b26006d0eedded5ce0128e8ad9b992453a710f).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

It's maybe easier if we don't do it both at the same time? nightly#18 seems to work fine by now

[Kim Morrison]

@Robin Arnez, I'm hesitant to merge something like nightly#18, because it contains both a huge blob of merged code from master, and your subsequent tweaks to it.

[Kim Morrison]

I would much prefer the merge happens first, and the fixes separately.

[Robin Arnez]

You can also

git branch nightly-testing-test 15c20f8e14302f8100c32c69e6dedccce114e2ac # one commit before the bad merge
git merge --squash upstream/master
git merge testing/nightly-testing

yourself if you're more comfortable with that

[Kim Morrison]

Okay, I've merged... I need to go to bed I guess anyway. :-) Thanks for the help, and sorry for the lack of coordination. We should setup better processes so it's clearer. I didn't see you PR until just now.

[Robin Arnez]

Just one more thing: #27533 didn't quite merge correctly, I assume a bors retry or something is necessary?

[Kim Morrison]

I think that bors output actually means it is still in progress.

[Kim Morrison]

#bors

[Kim Morrison]

Maybe not. I'll bors r+ now.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (303b31d2a6aa270ef008be0326d63ec94a9f7998).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Finally, we have nightly#19 building (except cache, which is still broken). Another nightly-with-mathlib coming soon!

[Robin Arnez]

https://github.com/leanprover-community/mathlib4/actions/runs/16551252134/job/46806399939
The "Merge master to nightly" workflow seems to be missing some permissions

[Robin Arnez]

Specifically the permission to change the "Merge master to nightly" workflow :-)

[Bryan Gin-ge Chen]

I think @Kim Morrison will need to update the token permissions here since the 2FA notifications for leanprover-community-mathlib4-bot go to them. I updated the notes in #passwords, but basically we need to add the "workflow" scope to "mathlib4 NIGHTLY_TESTING".

[Bryan Gin-ge Chen]

OK, I just attempted to merge master into nightly manually, hopefully everything went well.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (865f164be02289b17095d9b2107db225b0c667fe).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (75f7e70f4c79252b2822990d631822a6ad9363f1).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Okay, I have updated that token, and installed it as a secret, per #passwords.

[Kim Morrison]

(And merged nightly#19)

[Kim Morrison]

Robin Arnez said:

Okay, managed to reduce the problem it to lean4#9562

This was fixed in lean4#9578.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (257ccd813b5753f70ed278e63212cf1d172f7f08)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f7ade977be08078a3e8bfec3a3956a434eadda30).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a1f446eb4a9431e8513aa7bbcd30d8d14e1a4f05).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (257ccd813b5753f70ed278e63212cf1d172f7f08)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (01645a8321aea0e49534a90b86707974caf1e7ad).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a1877a8cf3bdbe5d99f316831ab88a8320fa6a93).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (44bab86fc836b21dbf5303db4f107dd8d57a7bf7)

[Kim Morrison]

Notice to users of nightly-testing: @Mac Malone is testing some changes to the caching infrastructure, and using the nightly-testing branch to do so. Don't expect the cache to be reliable on nightly-testing in the near future. :-)

[Kim Morrison]

@Mac Malone the cache upload in nightly-testing is not working, see https://github.com/leanprover-community/mathlib4-nightly-testing/actions/runs/16568879407/job/46855597666#step:22:3592

Credential sigv4 header should have at least 5 slash-separated parts, not 1

[Mac Malone]

Yep, I noticed that. Seems like we need to back out the change and I need to debug the FRO cache setup.

[Kim Morrison]

I think you have write access to the branch, can I leave it to you to revert?

[Robin Arnez]

Just a quick reminder that we can also revert the commenting out in Mathlib/Geometry/Euclidean/Congruence.lean now that we're on nightly-2025-07-28

[Kim Morrison]

Done.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (44bab86fc836b21dbf5303db4f107dd8d57a7bf7)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (ee1994d1ce21f0a4df25782e30eb48ab2024291f)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (731ffc9dc33d247924bff4ccb6a63c4ec9bb746a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5eb1c137ad262339f0bb67c79bb9503fe1fcabc8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (bc680c70ac35673b95d89c734a773e6bdfb8091e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (ee1994d1ce21f0a4df25782e30eb48ab2024291f)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

[Kim Morrison]

That URL is missing the master after blob...

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c02367d055012fc8c8b5c2eaf2d44b15779faa82).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2eebb74a805646ede4f312f8e8a68cafbc1be24c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3302efb3f4ae3befa9869b2c099bb14812acf94c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (4ad95cf1699e4a24612145830975c0adfc27d2ed)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (30de3e432005e777c9ee809f5c2160dca493fe04).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (4ad95cf1699e4a24612145830975c0adfc27d2ed)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (4ad95cf1699e4a24612145830975c0adfc27d2ed)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (16343f7f9e5ae34ffb0065036b5dddde45a582cf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e75d688816b826834de24447b5f1161c384d7fed).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (e9b6d7c7bf68aec35feadf75e134c35db2a0170f)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (101715d4df32f28088d0c1ac393f1a302ac37844).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3747b7ba3d8e7b8a4e753752e02852c1b1320e3a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (36a043cd21c27a378a3bab774fece49b34bdc053).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (983138476716864b69da915de5b787d5d4ca889e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (e9b6d7c7bf68aec35feadf75e134c35db2a0170f)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (e9b6d7c7bf68aec35feadf75e134c35db2a0170f)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

[Kim Morrison]

github mathlib4 bot said:

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

Hopefully resolved by #27793.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (e9b6d7c7bf68aec35feadf75e134c35db2a0170f)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (e9b6d7c7bf68aec35feadf75e134c35db2a0170f)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d1435a4cd5ae6ebcfd0be14d129ee52aaf508fc6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (8d5ff4faaeba47cc2573d5d61a49b7391a2cb272)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (95260f8bb65a6b6fd87951fe5e4c1cca06be8dcc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (a12f25fd5923181dd4b9452c5785cacf5a3b9424)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (324922f6f5e664a588465e2ff5274e973ea7abbb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (79a314b098441b3c3a91abdc6bd42cc49785da5d)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (de754d94feadf983389f00dcb03d21394616542a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

For me, lake exe cache get on nightly-testing is currently failing with

✖ [2/2] Running proofwidgets:release
error: failed to fetch GitHub release (run with '-v' for details)
Some required targets logged failures:
- proofwidgets:release

(Running with -v doesn't provide any additional information: @Mac Malone, is this something we need to fix?)

Could someone try to reproduce?

[Kim Morrison]

Hmm, after a few more attempts the problem has disappeared.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (79a314b098441b3c3a91abdc6bd42cc49785da5d)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1da9e28ff8544b902aaf17cd01a3e5eb17d3c2d6).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Merging batteries-pr-testing-1306 into nightly-testing now.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (75f6391292209c95cea0c2337455ab5ce2d0be6f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (948559c90f0a77c86665cd1ce44a2147868ebc50).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (63b1cf7b8f259bc082e77b3e3a1514d9f7df1ca3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2b58bf82a8da8d6d1ec4bb3dc62d2e50bc6ad8db).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7aff3db2ef9522cc0396757ac18455ffbac0769f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (efb1ad60cc856e8a021ed33c99bdded07cf6a967)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (222bed4d037140c84a5796ad0af0eae3f52976ea).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (fb72f53a7453a639349e5341aefe239d1ba446f8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (85d25dfca4fd8f526b6bfd94eca840c69660456e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (581d554b50c44fa1289033f6040ca85a226dfae8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (44f3045a402187693a092391d47b04d1250ee68f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (52dadd72ff8514441c1ba6365a3aa0f72a045bb2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5cce686f41127236c9685f93816eb4bc929cf3ae).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (6de9b2a206a6a36bcbc2abf7853a05086342a542)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c0f7deeff2ef123138077bc358816adb702cab09)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ad9e4e1c867ad56020a03f761c2ecd4ce328bbcc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a97f06097c3fa1d6b2efac443a3eacd0d7ff9d00).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8587cf664a80bd1dbe4703cb22b7733d1fe15ef4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c0f7deeff2ef123138077bc358816adb702cab09)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (595b152f77fc4171759de9389b40fcd19e3125c9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (4523a85ae79c3ff4786e8cb955a1997d17a76c51).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f319c3d748dcbeb40c2c0f95bdcfcee711eeeef2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (244bc0e47c6093e3d3d2f17d2b9c55120e0a2269).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b5ea6ed998d3840201ba2f1fdbb294fd98c8efc4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8aa3037f12d96348eb37e04dd0e921342b3e6584).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6ffc3538e40e28a9b7c379a6870bef82f470bc6f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (53594a5427ee279d5d88eecf589beba63781d533).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (15b8ed5856b691e8127824294c5571d3de70f9e1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d599424ab411e464570ff11b2e6e20359c83188e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (19fbde5aeeb12a89caa8d7bf2f93be2f3c94711c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (030a1ee3679099d4707bce3a0f63090b180343f8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7ee0a37e03c3e0b2f5df09b80cd5857f9ad65583).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ef7a10e5edecfce4e390b62c04094270ec68d3bf).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5e881c57a51b881e2acefa3a1ebb6eccd78f0fd7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ade22f56fff6b166fe87f98efd5f4fa126908c3c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (80c6f5adef66e9c37ab7316763850a6659bdeb1c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (12ba9658cc7c0dc610d6e940eee18265f84d9daa).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (069327597ab4f911ea0748ccfab5a0d851fa8345).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0e84a01812f3d094038354d15cb049b6a43704f4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (81f21dee9e18c85861e80d4fd18132c05853782d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ac1f250102a3c1c6d129bc8a615f2b9930588c4e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cec6094d61c9e92c1932dbf91d29dc9ecd10c620).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (91319379db41d1fa4fc2d83b45cc88885f9677dd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (723c971a3bf3bd1a706e6d104e2d81264f067a78).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (13a4683455a988bfdf47e927325b5abacfb0ec78).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (88b82b755e7a1474113ea438476569927f996f8b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9f95d0fe928d89ab75216f3b17a74024a1b3e096).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (231422eb2e32001ea63c31547ca2fbf692268d88).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f5acf40f45a439105d076f2ab591781d53c7934f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e769cc13c16fad58101b13b7d6fb11ee2f536f3c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e0f9f4a18ffd4602b607b255c0d6f77f54205166).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Finally starting on this again.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a44dc2fe122a64269c2cb2fbf5f7b08bc96a364e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3eff1247619b125f963f58b38c8a77e8fd40dd44).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (39495562c74300b71e3e98dfc765c7b047584cc2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b3c5da5aa7c82275bd6afe434ca4a12cca851c5a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (4391fe7dabfd4bd01c40669ea759cef39d652948)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a89da126f55358ae88b508d47a67eae55098e55f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c70e7a7dfbef3a1c25a3fa27ed699400ca82df64)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (49e9c0996c37288637914ba7fda536047dcd40bb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (980076ee736e2880c0fe28447cc2235308feeb53).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c70e7a7dfbef3a1c25a3fa27ed699400ca82df64)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (71588a4f9dc01b89fbea0073bbffd02da6397c83).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b7b2ebff165c60d6d3a12dedf842c4b51f719dbb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f1bb1583984e3554d81c43dd2c434cfd61ade778).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (17929540e69505ec47f8ac16bc5e49d151a4998b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5eae025749fc0fe7ad7fd46e4fa429f124e0bec2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (126d9b5c6ffe8878a0683b7672dc31f405dd2333).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e6eb83f9e00790ab81b50b7640d112d93b60f9b6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5e6393311222007801efc43b5c7f25eeec0570a8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f54ccae0db8664989563bf49756dcb3f2c530e2b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (84943f37f4c2a564c72927dc1eea846d813d13fe).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Mac Malone, as far as I can see this is "just" cache issues. We are getting very close to the line for a release --- what are next steps here? Shall I revert your changes to use the new cache backend?

[Kim Morrison]

Locally I can lake build Mathlib Archive Countexamples && lake test && lake lint, so hopefully we're otherwise good to go for release tomorrow.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3369322d09700e3f21ec4ffc10aa126c522ab3ab).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0365d54a62b46417f32e6cdab5e3a24a48979100).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7c6202bf661ffb79a69ac63ac8ceca9189de24f8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d700790ae7de5caf9ae16dbe689aa3bbcb671ce1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (9e1fd7ccc418c5437ca6a6bd29d10c6924f18299)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7b917fe2fc55921f54786560b4a22ed67dab3307).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (203219dda688bbebb9bd62e4064dfb061caec6fc).
You can git fetch; git checkout nightly-testing and push a fix.

[Bryan Gin-ge Chen]

@Kim Morrison I just pushed a few commits here fixing some grind warnings. I also added back the grind proofs I removed in #28272 (and checked that they were all indeed deterministic).

[Kim Morrison]

Thanks, @Bryan Gin-ge Chen!

[Kim Morrison]

I'm hopeful this one can become v4.23.0-rc1 tomorrow, it's looking good.

[Kim Morrison]

I just pushed a fix to the tests, so hopefully we get a :check: shortly.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (38ae17aa6cd305a4e6c265a1939c67376499066a)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a80352557fc69c487189365c1b3d5bd8e8589dc0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b607cb8d7253f20572d493fdb4a1d40606924df5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e2bcf7f9d254c8bff41bb90364e7fd1aa32713c3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6fae542614a73d493091166cbee8f77ddf29bdc9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (0954551f84596d579803a24ae8efdd3da8eaa49a)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1802d43d481ee637365f686b79fb75cfbbfd7b80).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (0954551f84596d579803a24ae8efdd3da8eaa49a)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (bce5646a249d57f396d2be80129b3ba80a1c290b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5a7f0092eb63d306553773a79290d32b0b1df773).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ae35a9be15a5b3292aeeb5fe5c28b11f42cf879a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9c2e2755a0608da18785504a4a3d7c7c3d706d0c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (21eaaf30472a9e163249e0aa7a0e2faee1b4e5b1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (51610399cab6d6339aec0455d9abc325265ec073).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2a3c5071d7330bc711898496e18002f4a4719c98).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cc1a5df20bb481d3b2f86501315c4c1f9723d33a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2d1a8f1255bb3552068e87ac9afda15365d79e93).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (9c555129b68629832c422698eb2f326220df1395)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (41c1e3c32c473c1c207585b6791e0659766d67f1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (9c555129b68629832c422698eb2f326220df1395)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (a777e305e9c1fcb7a3225e3a17ce0fb2ff5d5789)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (839d025f00c4c6a37c9fdf95421a65ab939eeff7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (16cb4390726f8ec8e7bfa8e9edf73221398a51bc)

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (c46e3b0c5bc5e724f0f1de6a367c370a553db587).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (16cb4390726f8ec8e7bfa8e9edf73221398a51bc)

[Kim Morrison]

github mathlib4 bot said:

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (c46e3b0c5bc5e724f0f1de6a367c370a553db587).
You can git fetch; git checkout nightly-testing and push a fix.

Ooh, exciting! Who made this happen?

The failed link is broken, and the instructions afterwards probably need tweaking, as these failures are likely problems in doc-gen4 and/or lean, rather than in Mathlib.

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (3c73a38c40c2acb5295d86bb1240494a384e46e6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (16cb4390726f8ec8e7bfa8e9edf73221398a51bc)

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (956f99f90395a67ef4c7aca39e2d679981a9dacc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (16cb4390726f8ec8e7bfa8e9edf73221398a51bc)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7ad7be828ee6c5210a459b0f792ed53d820721a1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3403dce19e9785bffe718d3392da65f063741d8d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (3403dce19e9785bffe718d3392da65f063741d8d).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Kim Morrison said:

github mathlib4 bot said:

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (c46e3b0c5bc5e724f0f1de6a367c370a553db587).
You can git fetch; git checkout nightly-testing and push a fix.

Ooh, exciting! Who made this happen?

The failed link is broken, and the instructions afterwards probably need tweaking, as these failures are likely problems in doc-gen4 and/or lean, rather than in Mathlib.

Just trying to track this down: @Anne Baanen, did you implement this?

[Bryan Gin-ge Chen]

Seems so, here's the workflow file: https://github.com/leanprover-community/mathlib4-nightly-testing/blob/nightly-testing/.github/workflows/nightly-docgen.yml

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (63d442dd22d058e4de00de339f34bdb6f905d63d).
You can git fetch; git checkout nightly-testing and push a fix.

[Anne Baanen]

Kim Morrison said:

Kim Morrison said:

github mathlib4 bot said:

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (c46e3b0c5bc5e724f0f1de6a367c370a553db587).
You can git fetch; git checkout nightly-testing and push a fix.

Ooh, exciting! Who made this happen?

The failed link is broken, and the instructions afterwards probably need tweaking, as these failures are likely problems in doc-gen4 and/or lean, rather than in Mathlib.

Just trying to track this down: Anne Baanen, did you implement this?

Yes, that's my docgen testing workflow! Still working on getting the action working as expected (since nightly-testing needs a bunch of custom configuration). Will fix the error message before I continue testing.

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (ed1405f731c8a8c89e6d1317fb383ed23df808bc).
This likely indicates an issue with the nightly Lean build, or a required update in doc-gen4.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ed1405f731c8a8c89e6d1317fb383ed23df808bc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1df36c362cc51134376cab36d5bda86533bc0b0c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (21aef280d1e29dbb2d5d55143951b3be52d4e3e6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (11ae10f3a900943f41ad857d10bf89ea9bcd2ce6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (89245ba6061a40a3aa36ac0743854ee6169cdb73).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1bad8a43a00d83b09c033407d9ccd53668840400).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (e373c7e9ef4583d448f9d2a3861dfda1c6701dad).
This likely indicates an issue with the nightly Lean build, or a required update in doc-gen4.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (e373c7e9ef4583d448f9d2a3861dfda1c6701dad)

[Kim Morrison]

github mathlib4 bot said:

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (e373c7e9ef4583d448f9d2a3861dfda1c6701dad).
This likely indicates an issue with the nightly Lean build, or a required update in doc-gen4.

Oh, interesting, the doc-gen4 build catches:

  error: Mathlib/Algebra/Order/CauSeq/Basic.lean:438:2: Tactic `simp? [not_forall]
     at nk` produced `simp only [gt_iff_lt, ge_iff_le, not_exists, not_and, not_forall, Classical.not_imp, not_le] at nk`,
  but was expecting it to produce `simp only [gt_iff_lt, ge_iff_le, not_exists, not_and, not_forall, not_le] at nk`!

  You can reproduce this error locally using `set_option says.verify true`.
  error: Lean exited with code 1

but the main nightly-testing build doesn't! This check on says statements only runs when CI=true. I guess somehow this is no longer set in our CI run (ah, because of landrun!) but it is when run via lean-action in the doc-gen build.

[Kim Morrison]

I've fixed this in nightly-testing, but we should:

1. tunnel CI=true through landrun
2. consider just deprecating says as a failed experiment

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e7f484e7b12e416f6557483142c81d58ef36ba9b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c5e64fb301ff728635e2a9101f734c69d2542e23).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (4f3d0aea5253552ddbbedf8edbefc6da109895b0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (e373c7e9ef4583d448f9d2a3861dfda1c6701dad)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e28a7091153beedcbe25efa29dee38248ed96d8d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5b096de4fab972769073aa38cd76c9abc844ab8a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (354465c05bd223d54ae700b80cbed67a72deb96d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0f8d03d07b8fcdbf21ace65574f7bac6e4f75eca).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

The warning in Mathlib.Data.Seq.Seq.lean is a linter warning arising form #9915. Unfortunately set_option linter.dupNamespace false in breaks the notation, because it makes it too local (i.e. local to the set_option).

For now we can get by with just set_option linter.dupNamespace false (no in). But we need to change something, I think, to avoid generating the name with the duplication, as there's no mechanism to control this at the call site.

@Sebastian Ullrich?

[Sebastian Ullrich]

Oh, did it fail to pick up the fixes from lean-pr-testing-9915 because it was merged manually? This is so confusing

[Kim Morrison]

Sorry, yes! It doesn't automatically pick up manually merged PRs.

[Kim Morrison]

I should have checked ofr that branch, sorry. I'll merge it now.

[Sebastian Ullrich]

I can't fault you, it is too easy to miss from either direction, during merge and during bump

[Kim Morrison]

I guess the bot that looks for lean-pr-testing-NNNN branches that have been merged could be smarter, and specifically look for rebase-merged PRs.

[Sebastian Ullrich]

Does the script currently look at the master history? If it looked at the merged PRs via the API that might work, yeah

[Kim Morrison]

Ick:

        # Find all commits to lean4 between the $OLD and $NEW toolchains
        # and extract the github PR numbers
        # (drop anything that doesn't look like a PR number from the final result)
        PRS=$(git log --oneline "$OLD..$NEW" | sed 's/.*(#\([0-9]\+\))$/\1/' | grep -E '^[0-9]+$')

[Sebastian Ullrich]

It works, until it doesn't :smile:

[Sebastian Ullrich]

Fortunately our needs for manual merging have declined so this might not be too pressing but that also makes it less likely we'll remember the issue the next time around

[Kim Morrison]

It's a bit nasty to do this properly. To query for PRs merged in a given time window, I'd first have to actually extract timestampes from the OLD and NEW tags. There's not really an obvious way to go from commits back to their PRs.

[Kim Morrison]

I guess I could enumerate all lean-pr-testing-NNNN branches, and for each one check if the PR has been merged. But there'd have to be some amount of filtering there anyway as that would be a lot of queries.

[Kim Morrison]

Maybe not worth the trouble this evening...

[Bryan Gin-ge Chen]

Kim Morrison said:

There's not really an obvious way to go from commits back to their PRs.

I haven't been following this thread fully so I'm just responding to this sentence, but there is a GitHub API endpoint to list PRs associated to a commit.

It also looks like you can search with gh pr list:

# Find a PR that introduced a given commit
$ gh pr list --search "<SHA>" --state merged

Apologies if I've misinterpreted what you're looking for

[Kim Morrison]

Nice, that looks like what we need.

[Kim Morrison]

#28692

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8efca8d950c32e120c1e38f2671c23b705fca909).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f913aa5b173dbb3c62f08be0b46432f21fa2493e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (62983e84d6f67f6d73d9446feeed99571fe98256).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (d5f898864ce75858d5d5d51057cce15e936c5c66)

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (1236f501e50c4483de26d1a22b174197097d61b6).
This likely indicates an issue with the nightly Lean build, or a required update in doc-gen4.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (d5f898864ce75858d5d5d51057cce15e936c5c66)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (22de30992624cb78874fb9d3937f1eaf28eef35e)

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (c2299359f081971ca75e597473ca593b68903a54).
This likely indicates an issue with the nightly Lean build, or a required update in doc-gen4.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (22de30992624cb78874fb9d3937f1eaf28eef35e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (46271117fff1c8aa2f8a073f11bf2a4e5109773a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b91f1794176ae01a7b9a1f13b351c72f79201295).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Lean's nightly release process failed last night, so failures will continue here until we get that sorted.

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (b91f1794176ae01a7b9a1f13b351c72f79201295).
This likely indicates an issue with the nightly Lean build, or a required update in doc-gen4.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (53682aa14fd9927beab404717fc0b6896d5e6a0e).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Unfortunately the nightly release failed again.

[Robin Arnez]

Which part? https://github.com/leanprover/lean4-nightly/releases/tag/nightly-2025-08-23 exists

[Bryan Gin-ge Chen]

Looks like it's missing darwin_aarch64 and linux_aarch64 in the assets; cf. https://github.com/leanprover/lean4-nightly/releases/tag/nightly-2025-08-21

[Robin Arnez]

oh I should look at this? https://github.com/leanprover/lean4/actions/runs/17172609665/job/48726222641

[Bryan Gin-ge Chen]

lean4#10076 looks like it might be related.

[Robin Arnez]

oh it's a json problem lol

[Robin Arnez]

              {
                ...
                "CMAKE_OPTIONS": "-DLEAN_INSTALL_SUFFIX=-darwin_aarch64",
                ...
                "CMAKE_OPTIONS": "-DUSE_LAKE=OFF",
              },

doesn't mean both but it means only the second one and the install suffix is gone

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (53682aa14fd9927beab404717fc0b6896d5e6a0e).
This likely indicates an issue with the nightly Lean build, or a required update in doc-gen4.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (bfd6a054aa5c25e43b11e87cb15bf281f0fb6ba2).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

And we're back to actually failing (i.e. the nightly-2025-08-24 toolchain was produced correctly)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7f4298fff7f1d8d891dfe880f92715152bdeed76).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

nightly#42 should fix everything but I'm running into the problem that build master-branch tools still uses the code from nightly-testing

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8e4809bdb14e715d5171981664d32063ff93d294).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Looks like a few more fixes are needed after nightly#42.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9b58a23e03bd71147ece3d810c5f9d3922c12b1f).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

num_intCast and den_intCast should be norm_cast

[Robin Arnez]

attribute [norm_cast] num_intCast den_intCast or whatever

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e08ccf0188f54be48446870d334af1a648a0a638).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (aa4e9536a0b705282174110a3b83a4e86a237180).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (fb7bdf00a2b6e53d2f2edd7df535251a7bcc4a1e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (931046fa5c9addaa84cf49ebc8420612ef787945).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Invalid field notation: Polynomial.eval has a parameter with expected type

Polynomial ?R

but it cannot be used

That problem comes from the constant macro scopes but really what it tells me is:
"I mean like yeah, it looks like this should work but sorry, our implementation is a hack and this case doesn't really work right now"

[Robin Arnez]

Could we fix this maybe? I'd expect the parameter to be passed by index or whatever and not by some weird user-specified name

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ef785e63a325fd706ea025e76cad1ec28f489fcd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cf7fdda47ea9db8bdab1829d1316e21da39f47e1).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Commit b33c9d7aaea comments out two broken proofs about the ShiftLeft Int instance that Mathlib defines. My preferred solution here is simply to deprecate these instances in Mathlib, per #28884, but if we'd like to keep them could someone please put up their hand to:

• fix the doc-strings to explain what happens for negative shifts
• revert b33c9d7aaea and fix the proofs on nightly-testing

[Robin Arnez]

I fixed it but I agree that those instances are in a bit of a weird position; being in conflict with core instances without there being any proofs correlating them; but one thing that it does well is that <- shiftLeft_sub is nice (compare with Int.shiftLeft_shiftRight_eq which is pretty ugly)

[Robin Arnez]

Ideally we would have some proofs though that say that those definitions (with Int vs with Nat) are equivalent

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (35fdd5d6f6e459d908215c9ac34bb2432a4c10f2).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

A remaining problem on nightly-testing is:

✖ [953/7112] Building Mathlib.CategoryTheory.Iso
info: stderr:
libc++abi: terminating due to uncaught exception of type lean::exception: cannot evaluate `[init]` declaration '_private.Mathlib.Tactic.CategoryTheory.Reassoc.0.CategoryTheory.reassocImplRef' in the same module
error: Lean exited with code 134
✖ [954/7112] Building Mathlib.CategoryTheory.NatTrans
info: stderr:
libc++abi: terminating due to uncaught exception of type lean::exception: cannot evaluate `[init]` declaration '_private.Mathlib.Tactic.CategoryTheory.Reassoc.0.CategoryTheory.reassocImplRef' in the same module

@Sebastian Ullrich, do you have a guess what may have caused this? The error is happening on the files which import Mathlib.Tactic.CategoryTheory.Reassoc, so the error message is slightly off.

[Kim Morrison]

(If you don't recognize it I can minimize and bisect against Lean.)

[Robin Arnez]

Hmm I think I get where the problem is that we run the initializers in the wrong order so it does registerReassocExpr before initializing reassocImplRef. In InitAttr we seem to assume that ModuleData.constNames is the correct order; but that isn't a guarantee:

          for c in modData.constNames do
            -- make sure to run initializers in declaration order, not extension state order, to respect dependencies
            if let some (decl, initDecl) := modEntries.binSearch (c, default) (Name.quickLt ·.1 ·.1) then
              if initDecl.isAnonymous then
                let initFn ← IO.ofExcept <| ctx.env.evalConst (IO Unit) ctx.opts decl
                initFn
              else
                runInit ctx.env ctx.opts decl initDecl

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (88a2c8412f4c532f223a164de9ba238fcc0d487a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Robin Arnez said:

Invalid field notation: Polynomial.eval has a parameter with expected type

Polynomial ?R

but it cannot be used

That problem comes from the constant macro scopes but really what it tells me is:
"I mean like yeah, it looks like this should work but sorry, our implementation is a hack and this case doesn't really work right now"

This is fallout from lean#10048. @Sebastian Ullrich, what do you think we should do here?

Polynomial.eval is defined as

def eval : R → R[X] → R :=
  eval₂ (RingHom.id _)

so it is easy to work around this as

def eval (x : R) (p : R[X]) : R :=
  eval₂ (RingHom.id _) x p

(which arguably is an improvement as it enabled named arguments), but it is not a great error message!

(I've made this change for now, so no action necessary, just for consideration.)

[Kim Morrison]

Robin Arnez said:

registerReassocExpr

Thanks, @Robin Arnez, for diagnosing this!

What do you think of the workaround in ddc9144a447?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ddc9144a44701b1e8db7ff5b0fa1e7a4e9463759).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ddc9144a44701b1e8db7ff5b0fa1e7a4e9463759).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (ddc9144a44701b1e8db7ff5b0fa1e7a4e9463759).
This likely indicates an issue with the nightly Lean build, or a required update in doc-gen4.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c288098e415e0131adc2313b785371044869f962).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6b527e3d87f79b59e9f9a658ca38cf64cae9f83d).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Oooh, this is not fun: the remaining failure on nightly-testing is the MathlibTest.RewriteSearch.Basic segfaults.

[Kim Morrison]

% lake env lldb lean MathlibTest/RewriteSearch/Basic.lean
(lldb) target create "lean"
Current executable set to '/Users/kim/.elan/toolchains/leanprover--lean4-nightly---nightly-2025-08-24/bin/lean' (arm64).
(lldb) settings set -- target.run-args  "MathlibTest/RewriteSearch/Basic.lean"
(lldb) run
Process 4391 launched: '/Users/kim/.elan/toolchains/leanprover--lean4-nightly---nightly-2025-08-24/bin/lean' (arm64)
Process 4391 stopped
* thread #3, stop reason = EXC_BAD_ACCESS (code=1, address=0x10)
    frame #0: 0x000000010eefc7b8 libleanshared.dylib`mi_malloc_small + 48
libleanshared.dylib`mi_malloc_small:
->  0x10eefc7b8 <+48>: ldr    x8, [x9, #0x10]
    0x10eefc7bc <+52>: cbz    x8, 0x10eefc7e0           ; <+88>
    0x10eefc7c0 <+56>: ldr    x10, [x8]
    0x10eefc7c4 <+60>: str    x10, [x9, #0x10]
Target 0: (lean) stopped.
(lldb) bt
* thread #3, stop reason = EXC_BAD_ACCESS (code=1, address=0x10)
  * frame #0: 0x000000010eefc7b8 libleanshared.dylib`mi_malloc_small + 48
    frame #1: 0x000000010eee6a08 libleanshared.dylib`lean::fix_args(lean_object*, unsigned int, lean_object* const*) + 76
    frame #2: 0x000000010eed6248 libleanshared.dylib`lean_apply_1 + 184
    frame #3: 0x000000010ec7b568 libleanshared.dylib`lean::ir::interpreter::eval_expr(lean::object_ref const&, lean::ir::type) + 2524
    frame #4: 0x000000010ec7a148 libleanshared.dylib`lean::ir::interpreter::eval_body(lean::object_ref const&) + 3192
    frame #5: 0x000000010ec7c070 libleanshared.dylib`lean::ir::interpreter::call(lean::name const&, lean::array_ref<lean::object_ref> const&) + 1212
    frame #6: 0x000000010ec7a148 libleanshared.dylib`lean::ir::interpreter::eval_body(lean::object_ref const&) + 3192
    frame #7: 0x000000010ec7c070 libleanshared.dylib`lean::ir::interpreter::call(lean::name const&, lean::array_ref<lean::object_ref> const&) + 1212
    frame #8: 0x000000010ec7a148 libleanshared.dylib`lean::ir::interpreter::eval_body(lean::object_ref const&) + 3192
    frame #9: 0x000000010ec7c070 libleanshared.dylib`lean::ir::interpreter::call(lean::name const&, lean::array_ref<lean::object_ref> const&) + 1212
    frame #10: 0x000000010ec7a148 libleanshared.dylib`lean::ir::interpreter::eval_body(lean::object_ref const&) + 3192
    frame #11: 0x000000010ec7c070 libleanshared.dylib`lean::ir::interpreter::call(lean::name const&, lean::array_ref<lean::object_ref> const&) + 1212
    frame #12: 0x000000010ec7a148 libleanshared.dylib`lean::ir::interpreter::eval_body(lean::object_ref const&) + 3192
    frame #13: 0x000000010ec7c070 libleanshared.dylib`lean::ir::interpreter::call(lean::name const&, lean::array_ref<lean::object_ref> const&) + 1212
    frame #14: 0x000000010ec7a148 libleanshared.dylib`lean::ir::interpreter::eval_body(lean::object_ref const&) + 3192
    frame #15: 0x000000010ec7c070 libleanshared.dylib`lean::ir::interpreter::call(lean::name const&, lean::array_ref<lean::object_ref> const&) + 1212
    frame #16: 0x000000010ec7a148 libleanshared.dylib`lean::ir::interpreter::eval_body(lean::object_ref const&) + 3192
    frame #17: 0x000000010ec7dfac libleanshared.dylib`lean::ir::interpreter::stub_m(lean_object**) + 556
    frame #18: 0x000000010ec7dba8 libleanshared.dylib`lean::ir::interpreter::stub_m_aux(lean_object**) + 92
    frame #19: 0x000000010ec7daac libleanshared.dylib`lean::ir::interpreter::stub_15_aux(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*) + 76
    frame #20: 0x000000010eedfdf0 libleanshared.dylib`lean_apply_7 + 3036
    frame #21: 0x000000010ec7b568 libleanshared.dylib`lean::ir::interpreter::eval_expr(lean::object_ref const&, lean::ir::type) + 2524

<snip>

    frame #109: 0x000000010ec7a148 libleanshared.dylib`lean::ir::interpreter::eval_body(lean::object_ref const&) + 3192
    frame #110: 0x000000010ec7c070 libleanshared.dylib`lean::ir::interpreter::call(lean::name const&, lean::array_ref<lean::object_ref> const&) + 1212
    frame #111: 0x000000010ec7a148 libleanshared.dylib`lean::ir::interpreter::eval_body(lean::object_ref const&) + 3192
    frame #112: 0x000000010ec7dfac libleanshared.dylib`lean::ir::interpreter::stub_m(lean_object**) + 556
    frame #113: 0x000000010ec7dba8 libleanshared.dylib`lean::ir::interpreter::stub_m_aux(lean_object**) + 92
    frame #114: 0x000000010eee15b8 libleanshared.dylib`lean_apply_9 + 996
    frame #115: 0x000000010eedcf5c libleanshared.dylib`lean_apply_5 + 1096
    frame #116: 0x000000010af1672c libleanshared.dylib`l_Lean_MVarId_withContext___at___Lean_Elab_Tactic_withMainContext_spec__0___redArg + 152
    frame #117: 0x000000010af16ad4 libleanshared.dylib`l_Lean_Elab_Tactic_withMainContext___redArg + 644
    frame #118: 0x000000010eed60a4 libleanshared.dylib`lean::curry(void*, unsigned int, lean_object**) + 404
    frame #119: 0x000000010ec7bdc8 libleanshared.dylib`lean::ir::interpreter::call(lean::name const&, lean::array_ref<lean::object_ref> const&) + 532
    frame #120: 0x000000010ec7a148 libleanshared.dylib`lean::ir::interpreter::eval_body(lean::object_ref const&) + 3192
    frame #121: 0x000000010ec7dfac libleanshared.dylib`lean::ir::interpreter::stub_m(lean_object**) + 556
    frame #122: 0x000000010ec744b0 libleanshared.dylib`lean_object* lean::ir::interpreter::with_interpreter<lean_object*>(lean::elab_environment const&, lean::options const&, lean::name const&, std::__1::function<lean_object* (lean::ir::interpreter&)> const&) + 320
    frame #123: 0x000000010ec7dba8 libleanshared.dylib`lean::ir::interpreter::stub_m_aux(lean_object**) + 92
    frame #124: 0x000000010ec7d9c8 libleanshared.dylib`lean::ir::interpreter::stub_13_aux(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*) + 68
    frame #125: 0x000000010eee170c libleanshared.dylib`lean_apply_9 + 1336
    frame #126: 0x000000010aee59a0 libleanshared.dylib`l_Lean_Elab_withInfoTreeContext___at_____private_Lean_Elab_Tactic_Basic_0__Lean_Elab_Tactic_evalTactic_eval_spec__5___redArg + 540
    frame #127: 0x000000010eee16a4 libleanshared.dylib`lean_apply_9 + 1232
    frame #128: 0x000000010aee703c libleanshared.dylib`l___private_Lean_Elab_Tactic_Basic_0__Lean_Elab_Tactic_evalTactic_eval + 820
    frame #129: 0x000000010aef855c libleanshared.dylib`l_Lean_Elab_Tactic_evalTactic___lam__1 + 1396
    frame #130: 0x000000010eee163c libleanshared.dylib`lean_apply_9 + 1128
    frame #131: 0x000000010aef92bc libleanshared.dylib`l_Lean_Elab_Tactic_evalTactic___lam__3 + 1056
    frame #132: 0x000000010eeda050 libleanshared.dylib`lean_apply_3 + 1128
    frame #133: 0x000000010eed64b0 libleanshared.dylib`lean_apply_1 + 800
    frame #134: 0x000000010ead7b58 libleanshared.dylib`l_Lean_profileitIOUnsafe___redArg___lam__0 + 20
    frame #135: 0x000000010eed6378 libleanshared.dylib`lean_apply_1 + 488
    frame #136: 0x0000000108ac0864 libleanshared.dylib`l_unsafeBaseIO___redArg + 20
    frame #137: 0x000000010eed6378 libleanshared.dylib`lean_apply_1 + 488
    frame #138: 0x000000010ec6f428 libleanshared.dylib`lean_profileit + 128
    frame #139: 0x000000010ead7e44 libleanshared.dylib`l_Lean_profileitIOUnsafe___redArg + 168
    frame #140: 0x000000010aef01b0 libleanshared.dylib`l_Lean_Elab_Tactic_evalTactic + 756

[Kim Morrison]

@Sebastian Ullrich and/or @Cameron Zwarich, does this ring any bells?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ba9c622e37b391d509a058d8c4878c697fa0da83).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

I expect this to be due to some miscompilation, maybe because of lean4#10080? (specializing bestFirstSearchCore?) I didn't look into it that much though

[Robin Arnez]

Hmm actually, adding @[nospecialize, noinline] everywhere doesn't seem to help at all

[Sebastian Ullrich]

Hmm, thanks for trying. It might be best to try with a debug builds of Lean next but I don't want to jump ahead of Cameron Zwarich

[Sebastian Ullrich]

Kim Morrison said:

which arguably is an improvement as it enabled named arguments

It's not great that implementation details would leak like this but given what you said above, perhaps "consider naming them explicitly" would suffice as a hint? /cc @Kyle Miller

[Sebastian Ullrich]

I should mention that I made the constant macro scope change as it was an easy win of -1.5% olean size on core (how much on Mathlib?). It it's not that easy after all... we can also revert

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (039362c3565ab3e652725c6fde0eea5acf72c275).
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[Robin Arnez]

I tried running it compiled, in hopes of getting a better backtrace but then it didn't segfault anymore!

import Mathlib.Tactic.RewriteSearch

open Qq in
def rwSearchTest : Lean.MetaM Unit := do
  IO.println "Running test..."
  let u : Lean.Level := .param `u
  let goalType := q({α : Type u} → (xs ys : List α) → (xs ++ ys).length = ys.length + xs.length)
  let goal := (← Lean.Meta.mkFreshExprMVar goalType).mvarId!
  let (_vars, goal) ← goal.introNP 3
  IO.println "Running rw_search tactic..."
  let stx ← `(tactic| rw_search)
  let tactic := Mathlib.Tactic.RewriteSearch._aux_Mathlib_Tactic_RewriteSearch___elabRules_Mathlib_Tactic_RewriteSearch_tacticRw_search__1
  let ((_, _st1), _st2) ← (((tactic stx).run { elaborator := decl_name% }).run { goals := [goal] }).run {} { levelNames := [`u] }
  let newGoals := _st1.goals
  if newGoals.isEmpty then
    IO.println "success!"
  IO.println s!"{newGoals.length} goals remaining"
  IO.println (← (← Lean.addMessageContext m!"{newGoals}").format)

def main : IO Unit := do
  Lean.initSearchPath (← Lean.findSysroot)
  let env ← Lean.importModules #[{ module := `Init }, { module := `Mathlib.Tactic.RewriteSearch }]
    {} (loadExts := true) (trustLevel := 1024)
  discard <| rwSearchTest.toIO {
    fileName := "<thing>"
    fileMap := .ofString ""
  } { env }
  unsafe env.freeRegions

prints

Running test...
Running rw_search tactic...
1 goals remaining
[α : Type u
 xs ys : List α
 ⊢ ys.length + xs.length = ys.length + xs.length]

[Robin Arnez]

slightly weird that it didn't close the goal though

[Sebastian Ullrich]

But it does segfault if you --run the same test file?

[Robin Arnez]

Yeah

[Sebastian Ullrich]

Huh. Might either be a bad draw in the UB lottery or an interpreter/codegen mismatch

[Robin Arnez]

It might still be a compiler issue, e.g. a reference counting issue; I believe one difference between compiled and interpreted is that compiled uses persistent objects more often; maybe that avoided a reference counting problem somewhere?

[github mathlib4 bot]

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[Cameron Zwarich]

Kim Morrison said:

Sebastian Ullrich and/or Cameron Zwarich, does this ring any bells?

This stack trace looks like a use-after-free stomping on some allocator state. There is no compiler change that looks obviously related (although there were a few big optimizations that changed a lot of things and thus could've exposed a latent bug), so I'll have to revert them one by one and see what's to blame.

There are a few differences in object lifetimes between the interpreter and the C backend (e.g. how closed term decl initialization works, the interpreter using the _boxed versions of decls more often, etc.) but I also don't quite see how they would interact with any of the changes since the last green build.

[github mathlib4 bot]

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[Robin Arnez]

I temporarily disabled the rw_search tests now (in b118ce2f6d4) so we should hopefully get a build now

[github mathlib4 bot]

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[Cameron Zwarich]

Cameron Zwarich said:

Kim Morrison said:

Sebastian Ullrich and/or Cameron Zwarich, does this ring any bells?

This stack trace looks like a use-after-free stomping on some allocator state. There is no compiler change that looks obviously related (although there were a few big optimizations that changed a lot of things and thus could've exposed a latent bug), so I'll have to revert them one by one and see what's to blame.

There are a few differences in object lifetimes between the interpreter and the C backend (e.g. how closed term decl initialization works, the interpreter using the _boxed versions of decls more often, etc.) but I also don't quite see how they would interact with any of the changes since the last green build.

This is indeed #10080 as @Robin Arnez expected. Assuming I did the compiler binary juggling correctly, rebuilding every other file with #10080 reverted and only Mathlib/Tactic/RewriteSearch.lean with #10080 in place suffices to trigger the bug.

It looks like RewriteSearch.lean relies heavily on Batteries.Data.MLList, which has a lot of unsafe code. Based on my past experiences with unsafe code being used by Mathlib, it wouldn't surprise me if this unsafe code is subtly incorrect, but the increased specialization is causing the compiler to now perform optimizations that expose this incorrectness.

[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (f214e78436f4a4b0f4dfc54e072c37334ce4e04e).
This likely indicates an issue with the nightly Lean build, or a required update in doc-gen4.

[Kim Morrison]

As the author of that unsafe code, I would not be surprised if it is incorrect. :-)

Let me see how everyone feels about simply deprecating RewriteSearch. I still like the idea, but I have not had a chance to work on it for a long time, and no one else has taken it up.

[Kim Morrison]

github mathlib4 bot said:

:cross_mark: The docgen run for Mathlib's nightly-testing branch has failed (f214e78436f4a4b0f4dfc54e072c37334ce4e04e).
This likely indicates an issue with the nightly Lean build, or a required update in doc-gen4.

@Anne Baanen, I'm leaving this for you to look at for now? Perhaps we could move this to a different thread as it is a bit distracting here.

[github mathlib4 bot]

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[Cameron Zwarich]

Cameron Zwarich said:

This is indeed #10080 as Robin Arnez expected. Assuming I did the compiler binary juggling correctly, rebuilding every other file with #10080 reverted and only Mathlib/Tactic/RewriteSearch.lean with #10080 in place suffices to trigger the bug.

If I add

diff --git a/Mathlib/Data/MLList/BestFirst.lean b/Mathlib/Data/MLList/BestFirst.lean
index 254dcdfde25..c6d1414af89 100644
--- a/Mathlib/Data/MLList/BestFirst.lean
+++ b/Mathlib/Data/MLList/BestFirst.lean
@@ -250,6 +250,7 @@ where
 /--
 Wrapper for `impl` implementing the `maxDepth` option.
 -/
+@[nospecialize]
 def implMaxDepth (maxSize : Option Nat) (maxDepth : Option Nat) (f : α → MLList m α) (a : α) :
     MLList m α :=
   match maxDepth with

on nightly-testing-2025-08-21 (the last green build before this string of failures), then I get similar memory corruption crashes. If this is a compiler issue rather than a bug in unsafe code, then I don't think it's a recent one.

[Cameron Zwarich]

The same failure occurs with master and stable.

[github mathlib4 bot]

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[Kim Morrison]

I'm discussing with maintainers just ripping out this code (all MLList and rw_search material in Mathlib). As much as I love it (it was my first project in Lean back in ????), no one is using it.

[github mathlib4 bot]

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[Kim Morrison]

In commit 348f72ec963 I have commented out the "Try this" suggestion that replaces @[to_additive] string style comments with doc-string style comments. lean#9966 redesigned the interface here, and removed a private function. Unfortunately, @Thomas Murrills when installing this suggestion had used open private. (I think it's a good idea if any PR to Mathlib using open private involves during review an explicit discussion of that use of open private.)

Would anyone like to adopt this problem?

Note that a warning is still logged, my commenting out only removes the Try this. I would recommend that we choose not to work on this, as it is clearly not worth the effort for the payoff. :-)

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[Thomas Murrills]

I can fix this; the corresponding declaration I would need in place of addSuggestionCore after lean4#9966 is no longer private, if I recall correctly. :)

[Thomas Murrills]

(I will do so in about half an hour; the fix should be straightforward.)

[Thomas Murrills]

mathlib4-nightly-testing#45

[Thomas Murrills]

There's another lean4#9966 adaptation necessary: we lost suggestion styling :( What should we do for successful tactics in the hint tactic? Emoji? Separate lists (which is easier to have in a single message now)?

[Kim Morrison]

Emoji sounds good to me.

[Thomas Murrills]

I thought so too! :) mathlib4-nightly-testing#46

[Thomas Murrills]

However, I can't test that yet, and the tests will need to be updated due to new indentation; imports seem to be stuck on Lean.Grind.PartialOrder missing?

[Kim Morrison]

Yes, I'm about to work on that.

[Kim Morrison]

Are we treating the styling as just gone for good? If so, no need for the adaptation note.

[Thomas Murrills]

Honestly, I'm not sure. The reasoning in the PR is that the hint infrastructure uses diff colors so styling is not needed, but, of course, try this suggestions typically do not use a diff. I'm not sure there was ever any discussion on it.

[Thomas Murrills]

I've asked in #lean4 > Try This suggestion styling .

[Kim Morrison]

Okay, nightly-testing should be available for testing this now, most of the other issues are fixed.

[Kim Morrison]

In f23f2657a53 I've commented out Mathlib.Data.UInt, as these are broken by lean#10095. @Eric Wieser, might you be able to look at this file again?

[Thomas Murrills]

(note: there's a weird whitespace issue. I'm currently chasing it down.)

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[Thomas Murrills]

Ok, hint should be fixed in mathlib4-nightly-testing#46!

However, because the suggestions are just embedded in MessageData now, I had to rework how it extracts Try This messages from the message logs. Without the change, it e.g. resulted in the entire text of "The ring tactic failed to close the goal. Use ring_nf to obtain a normal form. Note that ring works primarily in commutative rings. ..." etc. becoming part of the clickable link for ring_nf!

Also, apparently unrelated to my changes, the "remaining subgoals" info is now inline. (I'm not sure why that didn't appear before, to be honest...)

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[Eric Wieser]

Kim Morrison said:

In f23f2657a53 I've commented out Mathlib.Data.UInt, as these are broken by lean#10095. Eric Wieser, might you be able to look at this file again?

Could you try to upstream these API lemmas? This file is fragile in mathlib because the API is missing in core.

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[Kim Morrison]

@Mario Carneiro, TMToPartrec was failing on nightly-testing. I have patched it with a

@[simp] theorem default_Γ' : (default : Γ') = .consₗ := rfl

in 7403ebf52c8. If you'd like to investigate and see if there is a better fix than relying on the default value picked by deriving Inhabited, please do!

[Mario Carneiro]

the definitions in that file generally care about what the Inhabited instance value is

[Mario Carneiro]

IIRC there used to be arbitrary and default which differed in opacity

[Mario Carneiro]

in the absence of additional info on this situation I think I will say that your fix is good and working as intended

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[Eric Wieser]

Kim Morrison said:

In f23f2657a53 I've commented out Mathlib.Data.UInt, as these are broken by lean#10095. Eric Wieser, might you be able to look at this file again?

The fix was just to delete the failing change tactic, this probably didn't need my input!

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[Kim Morrison]

Eric Wieser said:

Kim Morrison said:

In f23f2657a53 I've commented out Mathlib.Data.UInt, as these are broken by lean#10095. Eric Wieser, might you be able to look at this file again?

The fix was just to delete the failing change tactic, this probably didn't need my input!

I wish it didn't need my input either. :-)

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[Kim Morrison]

@Heather Macbeth, this failure on nightly-testing come from the new field_simp implementation, which seem to be depending on the HMul Nat Int Int instance that Lean briefly provided, until it was removed again in lean#10095.

Might you be able to take a look, as it it hopefully fresh in mind? :-)

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[Heather Macbeth]

Kim Morrison said:

Heather Macbeth, this failure on nightly-testing come from the new field_simp implementation, which seem to be depending on the HMul Nat Int Int instance that Lean briefly provided, until it was removed again in lean#10095.

Might you be able to take a look, as it it hopefully fresh in mind? :-)

I can look tonight (UK), if that's not too late?

[Kim Morrison]

No problem!

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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c0a856404dee9deb13c105e0132addd8447e8897).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9f00ccffeff080df8783ceebb65618dacb42426d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f3c2c804d16088e6f44b9b71bc9a4cb8fe3108df).
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[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6661b3e08f7f00fe25835ad06d0362c36b066417).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Frédéric Dupuis, we've enabled some experimental linters on nightly-testing, and your lemma docs#AkraBazziRecurrence.smoothingFn_mul_asympBound_isBigO_T is timing out. It's not a big deal: we can disable the linter on that particular theorem.

But the proof of that theorem is pretty epic... Would you be able to take a look at refactoring it into some smaller pieces?

(Just a PR to master will suffice for our purposes.)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ac788fd6288294f5f30308228e7f25a392059113).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (df9b40f3019f8dab7f37bbd56fd488f6afce6ddf).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Anne Baanen, this is failing now because the linters are turned on, but we still run with --iofail, so the new linter warnings fail the build.

[Kim Morrison]

I have commented out linter.nightlyRegressionSet in the lakefile, so we can get to green.

[Frédéric Dupuis]

Kim Morrison said:

Frédéric Dupuis, we've enabled some experimental linters on nightly-testing, and your lemma docs#AkraBazziRecurrence.smoothingFn_mul_asympBound_isBigO_T is timing out. It's not a big deal: we can disable the linter on that particular theorem.

But the proof of that theorem is pretty epic... Would you be able to take a look at refactoring it into some smaller pieces?

(Just a PR to master will suffice for our purposes.)

Sure, I can have a look.

BTW, is there a good way to just count the number of heartbeats in a proof? I can't seem to find this particular option anywhere, and sometimes it's hard to figure out if I'm making things worse or better performance-wise.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (f21162f1c74a5fca6c307b107ed4509d01211db4)

[Kim Morrison]

#count_heartbeats in

[github mathlib4 bot]

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[Anne Baanen]

Kim Morrison said:

I have commented out linter.nightlyRegressionSet in the lakefile, so we can get to green.

Sorry about that. I'll move the debugging to another branch so it's not in your way!

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (19646373efebfe279efe5f2e081a451c8077dbb7)

[Frédéric Dupuis]

Kim Morrison said:

#count_heartbeats in

Hmm... when I try to use it, I get an absurdly low number (108 for the proof in question), and then in the proof I get warnings on every tactic used saying that they're not being executed.

[Ruben Van de Velde]

Frédéric Dupuis said:

Kim Morrison said:

#count_heartbeats in

Hmm... when I try to use it, I get an absurdly low number (108 for the proof in question), and then in the proof I get warnings on every tactic used saying that they're not being executed.

See #mathlib4 > Is count_heartbeats broken

[Frédéric Dupuis]

Ah, I see...

[github mathlib4 bot]

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You can git fetch; git checkout nightly-testing and push a fix.

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:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (d06300bafa0768331d81d5d0578b7f80cd22d947)

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (45a653e4e768209e80192b08562d72f4efb7c562).
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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e84eb70f32a07878fc13d12b3290792776a68e83).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (af5ceb540466569085f33f79f0f6e3ae56e7a589).
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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8a7e8b2e556a006da5864bd028c680be83ad9a72).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

The test that's failing seems to uncover a performance regression in grind:

import Mathlib

variable {K : Type*} [Field K] {x : K}

-- about half a second / more than twice as long as before
set_option maxHeartbeats 13692 in -- uses about 4000 as of 2025-08-06
example : x ^ 3 * x ^ 42 = x ^ 45 := by grind

The problem seems to be that the HSMul instances take much longer to find:

import Mathlib

set_option maxHeartbeats 2900 in
#synth HSMul ℤ (Lean.Grind.IntModule.OfNatModule.Q K) (Lean.Grind.IntModule.OfNatModule.Q K)

set_option maxHeartbeats 2700 in
#synth HSMul ℕ (Lean.Grind.IntModule.OfNatModule.Q K) (Lean.Grind.IntModule.OfNatModule.Q K)

-- previously

set_option maxHeartbeats 160 in
#synth HMul ℤ (Lean.Grind.IntModule.OfNatModule.Q K) (Lean.Grind.IntModule.OfNatModule.Q K)

set_option maxHeartbeats 990 in
#synth HMul ℕ (Lean.Grind.IntModule.OfNatModule.Q K) (Lean.Grind.IntModule.OfNatModule.Q K)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b9279110bd82fcfae085b22f44f2e7a0174a7e9b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c6a0dadeed5e42ce66c578a6a64f645431584417).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c243dd2051513066d79315d01780eb5b10bea7b4).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (fe5f6cf66400f67ea8d1679fba244b4a42500647).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Joachim Breitner, we are seeing linter failures on nightly-testing which are presumably due to your recent changes to deriving DecidableEq, e.g.

% lake exe runLinter Mathlib.CategoryTheory.Limits.Shapes.WidePullbacks
Running linter on specified module: Mathlib.CategoryTheory.Limits.Shapes.WidePullbacks
-- Found 3 errors in 13126 declarations (plus 9014 automatically generated ones) in Mathlib.CategoryTheory.Limits.Shapes.WidePullbacks with 15 linters

/- The `unusedArguments` linter reports:
UNUSED ARGUMENTS. -/
-- Mathlib.CategoryTheory.Limits.Shapes.WidePullbacks
/Users/kim/projects/lean/mathlib4/Mathlib/CategoryTheory/Limits/Shapes/WidePullbacks.lean:57:12: error: @CategoryTheory.Limits.WidePullbackShape.instDecidableEqHom.decEq argument 4 inst✝ : DecidableEq
  J✝
/Users/kim/projects/lean/mathlib4/Mathlib/CategoryTheory/Limits/Shapes/WidePullbacks.lean:159:12: error: @CategoryTheory.Limits.WidePushoutShape.instDecidableEqHom.decEq argument 4 inst✝ : DecidableEq
  J✝

-- Mathlib.Tactic.ToAdditive.Frontend
/Users/kim/projects/lean/mathlib4/Mathlib/Tactic/ToAdditive/Frontend.lean:495:12: error: ToAdditive.instReprConfig.repr argument 2 prec✝ : ℕ

I see in this example we previously had

-- This is relying on an automatically generated instance name, generated in a `deriving` handler.
-- See https://github.com/leanprover/lean4/issues/2343
attribute [nolint unusedArguments] instDecidableEqHom

and adding .decEq here resolves the linter warning. But do we want to fix this more fundamentally?

[Kim Morrison]

The linter error in ToAdditive.Frontend did not previously require a @[nolint] attribute, but now does.

[Kim Morrison]

I created https://github.com/leanprover/lean4/issues/10295 to track this, and will add a link to this issue at each place I need to write or update a @[nolints] attribute.

[Kim Morrison]

These are all in 9fd69a855164, in case we're able to revert later.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5c98deb5fa1eb4f539c1e70d0bc875815dadb820).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d9df815917a3e6e32b9d4aeebbc7ad1bf6587275).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (300aa9a66e8de177acb32a2ec0df170ba59cccfb).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ff7f68366dfdbef6c7885992470d8883a151c848).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1e0a22c4b304a2ae239466f03d6a9e5144b4acd9).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (bac6a71fa83116a8c2ae39bbe323ff77982f8559).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (84bd3e991a2ef2163784901f76cd1229a8b73687).
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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (38938eb33835cc5c507306537ece9bfdfd92ff56).
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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1c54a07e9521261483aed57816c2169290626b9f).
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[github mathlib4 bot]

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You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ca7a22ba8f3fe6a761f7c8703e7bcbcda11e7069).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6382c1cee7fcfffda2ebe1738b977238ddac0294).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (4593f6b663ee740802aba6405c85d5aa7d6ec00d).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b89ef87a41e16424e5111529de6ddc62711fb1e9).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I have temporarily commented out the slow typeclass search test that has been failing for the last couple of days, hoping to get a green build again.

But we need to sort this out still. :-(

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8bbff1856c14e96c1220c3805cbc9ab28cda343a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (03abcf53054fb3e5138e0407f758919b4a0d8d01)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f0322dc5a8bdc3e97a815f4a055733488117c8da).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (03abcf53054fb3e5138e0407f758919b4a0d8d01)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (82a044e0f6d552bd40084a43b3e91a0dc346ac1b).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Hmm getting hit by lean4#10317 again

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0ab5d6dc754b1d07188cdd8072be2415bf88f410).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (f81ff0cf5025143c506c98ad3675c5db470f506e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a585cf4b0b6d33dfd9aad8c8ac22c186627af1d6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (f81ff0cf5025143c506c98ad3675c5db470f506e)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (03abcf53054fb3e5138e0407f758919b4a0d8d01)

[Kim Morrison]

Kim Morrison said:

I have temporarily commented out the slow typeclass search test that has been failing for the last couple of days, hoping to get a green build again.

But we need to sort this out still. :-(

I've just restored this test. :-)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (f81ff0cf5025143c506c98ad3675c5db470f506e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6a13077c5bfbdabaa69f590e55207d8703129f02).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5658f4e868d947da1d131524e7bcc1bf86f41a32).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (48ab2a0944ec17e2f56b24b0d3a17347010b5b92).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0c4a789ffe6c0139467b91265cb8dc6e9a54f9e0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (080113a9fb1294c38c8d464d49240b15d87f3176).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@David Thrane Christiansen, similarly, could you please review bba7bb8f54d9 on Mathlib's nightly-testing, also regarding changes from lean#10307.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e0b8b8badcb9830b4a340e22f0ec2ac52bffdf8f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e0b8b8badcb9830b4a340e22f0ec2ac52bffdf8f).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Thomas Murrills, @David Thrane Christiansen, could I get one of you to review e0b8b8badcb on Mathlib's nightly-testing? Here validateDocComment has changed from CoreM to TermElabM, so is relatively hard to call from this position. However the surrounding comments, which I haven't taken the time to understand, suggest that it is perhaps no longer necessary. (I'm very happy to drop full support of string mode comments for to_additive, if that helps!) So my commit for now just removes the call to validateDocComment! :woman_shrugging:

[Robin Arnez]

Kim Morrison schrieb:

David Thrane Christiansen, similarly, could you please review bba7bb8f54d9 on Mathlib's nightly-testing, also regarding changes from lean#10307.

The bool flag is isVerso, again. I'm not quite sure when toModifiers gets used but doc.verso.get (← getOptions) might be a reasonable value. Also again, mkNullNode #[] would probably be a better default for binders.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0460eb84ed78102f683cefa4b36cdc298f582d32).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Robin Arnez said:

Kim Morrison schrieb:

David Thrane Christiansen, similarly, could you please review bba7bb8f54d9 on Mathlib's nightly-testing, also regarding changes from lean#10307.

The bool flag is isVerso, again. I'm not quite sure when toModifiers gets used but doc.verso.get (← getOptions) might be a reasonable value. Also again, mkNullNode #[] would probably be a better default for binders.

Thanks, I've adopted both these suggestions. @David Thrane Christiansen, is you could take another look at this one that would be great.

[Kim Morrison]

The DeriveTraversable handler is broken on nightly-testing. It is not used in Mathlib, so for now I have just commented it out. I'm not sure if anyone is interested in rescuing it. It was last touched by Simon Hudon back in 2018. Please ping me here if you are interested in working on it. Otherwise I will prepare a deprecation PR for master shortly.

[Kim Morrison]

chore: deprecate Traversable deriving handler #29573

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9a65e648970e99ee73c55b1cd5026c3d34d8a7d7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1ee14ece202bee14a3cb8a48285b843095df8c70).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Having trouble with shake here. This will still need a shake --update after the next build.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c9135c5fc71ebb63d4c7c80bee1c0071329ad9d5)

[Thomas Murrills]

Kim Morrison said:

Thomas Murrills, David Thrane Christiansen, could I get one of you to review e0b8b8badcb on Mathlib's nightly-testing? Here validateDocComment has changed from CoreM to TermElabM, so is relatively hard to call from this position.

Nothing will break immediately by commenting out vaidateDocComment, but we probably should not leave it like that!

(I'm very happy to drop full support of string mode comments for to_additive, if that helps!)

Unfortunately, since addDocstring has ascended to TermElabM too, such a change would no longer help us out (since attributes work down in abbrev AttrM := CoreM). (In fact, the TODO comment there should probably simply be removed now in favor of an adaptation note stating that more care needs to be taken.)

I'll start a separate zulip discussion (though it's possible @David Thrane Christiansen already has plans for what to do in this sort of situation).

[Thomas Murrills]

#lean4 > Adding docstrings from within attributes after lean4#10307

[David Thrane Christiansen]

The only problem that skipping validateDocComment might cause is that ill-formed links to the Lean reference manual will be caught at docstring-rendering time rather than docstring-adding time. Which is to say, you'd get a hover with an error message in it instead of red squigglies. This is not great, but I'll work on getting you the feature you need to eliminate that.

[David Thrane Christiansen]

https://github.com/leanprover/lean4/pull/10357 makes validateDocComment monad-polymorphic.

[David Thrane Christiansen]

And as @Robin Arnez worked out, doc.verso.get (← getOptions) is the right value for the Bool; failing that, it should be false rather than true (which would mean that said docstring is only ever in Markdown, which is an OK assumption for now).

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c9135c5fc71ebb63d4c7c80bee1c0071329ad9d5)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (dea79f03108f14a22fd9a7a3cd9cfd9092d70f2d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (015925bde7216fd2b3dcb5d8738fac8492c9c40c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (adffc256abd40495f29256a0fe9411b19dfb99a7).
You can git fetch; git checkout nightly-testing and push a fix.

[Robin Arnez]

Kim Morrison schrieb:

The DeriveTraversable handler is broken on nightly-testing. It is not used in Mathlib, so for now I have just commented it out. [...] Otherwise I will prepare a deprecation PR for master shortly.

I don't think it's fair to deprecate things just because they aren't used in mathlib; I believe the e.g. Functor deriving handler defined in the same file might be useful for some people. Anyways, I think I fixed it, I'll see how the build goes.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c1aa8dc90067cf84f56cfb9b452437223cc51936)

[Kevin Buzzard]

I guess the argument for pruning unused stuff from mathlib is that Kim has to keep the nightly-testing show on the road and this is a daily challenge for them.

[github mathlib4 bot]

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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d54657561441e89139d3305a594b449e220e5dca).
You can git fetch; git checkout nightly-testing and push a fix.

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You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3883da6eec1eb6ec117fa3daf20cc90861ca5d9e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7748c712805e80d2f8bd2f513887ab6277466216).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d3c1c7fb3eee4a07f485f1887fdaf31fac7b815d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b0d923ba5e2a6661da587aeaf33f35aa934e41fb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (18262b20769f2339759765c56c16acd05576f0b5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (8a984e169a6584136d074abd730d95e52503d176)

[github mathlib4 bot]

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[Kim Morrison]

Robin Arnez said:

Kim Morrison schrieb:

The DeriveTraversable handler is broken on nightly-testing. It is not used in Mathlib, so for now I have just commented it out. [...] Otherwise I will prepare a deprecation PR for master shortly.

I don't think it's fair to deprecate things just because they aren't used in mathlib; I believe the e.g. Functor deriving handler defined in the same file might be useful for some people. Anyways, I think I fixed it, I'll see how the build goes.

I think the criteria should be:

• if it is used in Mathlib, or if it a leaf file but nevertheless "in scope" for Mathlib, then we should certainly be bringing it up to date as upstream dependencies change (or organising for fixes upstream to make this happen)
• if it is a leaf file and arguably "out of scope" for Mathlib, but there are identifiable users, then we should attempt to keep it alive during updates, but we have the escape clause of asking those users to take responsibility for fixing it (either inside or outside Mathlib)
• if it is a leaf file, out of scope, and there are no identified downstream users, then it's a good opportunity to clean up (e.g. comment out on nightly-testing, and deprecate on master)

[github mathlib4 bot]

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[github mathlib4 bot]

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You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a4b37b2423b87e1c289072f7279a75d29d536657).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (526190d5eaa76b20872adf8331e9ab9725e35750).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (90a85422a20137251a9edc48739a18fbeea15d6a)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (889210388069fc1940dddec996416cc897ecd50b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3ef9899579f6babeabc2b3773d68a241e26a14ce).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Kim Morrison said:

We need to build with

-- Compare old and new
set_option backward.grind.checkInferPatternDiscrepancy true
-- Use old
set_option backward.grind.inferPattern true

to identify files where the behaviour has changed, then in those files set

set_option backward.grind.inferPattern false

and change the grind attribute to plain @[grind], which will now give a list of suggestions.

I've now set these options in the Mathlib nightly-testing lakefile, so we can get CI to help.

[Sebastian Ullrich]

It looks like #10437 will be necessary to unbreak proofwidgets

[Kim Morrison]

lean#10437

[Kim Morrison]

Okay, I think I've fixed up the grind annotations. We may change the behaviour so ! remains the default for local theorems, in which case we can remove a few that I've just added.

[Robin Arnez]

We seem to have two conflicting fixes! @Kim Morrison, we should probably revert https://github.com/leanprover-community/ProofWidgets4/commit/524d83dedae24aad3660fd7bf28c1a6b431ee7bd

[github mathlib4 bot]

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[Kim Morrison]

Robin Arnez said:

We seem to have two conflicting fixes! Kim Morrison, we should probably revert https://github.com/leanprover-community/ProofWidgets4/commit/524d83dedae24aad3660fd7bf28c1a6b431ee7bd

Yes, we can do it tonight once the nightly lands.

[github mathlib4 bot]

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You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (160e8ad2bd088f05994ef8964c96bac3b03e598a).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (572e219401d7aa06a47742227e70de230991c3f1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0e0ad1cbc8227396cfbc05ecdfc8dd85f8c90491).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e841a1387805b74b2da659043d69b02427ce4387).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (298066b8c7fe42fa35dfe6389d6c95f48e961cbf).
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[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (37972575d233a0200b8b0477bc3ed3f30a38d365).
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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (68f672cba160d193cef36337016cb098ceb7f042).
You can git fetch; git checkout nightly-testing and push a fix.

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[github mathlib4 bot]

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[github mathlib4 bot]

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You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (8416b90e756b4bdf56b0de9c0d735986255d56d2)

[github mathlib4 bot]

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[github mathlib4 bot]

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You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (666f3426a9d5ee88913dcf6d257f84bbee9fba6f).
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:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (815adf2464144efaabbba281977d6581609ba222)

[github mathlib4 bot]

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You can git fetch; git checkout nightly-testing and push a fix.

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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (bad876b689375495a77627abda7236ff9ea095fd).
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[github mathlib4 bot]

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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (fd030f4f168b52a4244ffa89037360673c853ab5).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (aabf6748849c12535c7eb9136f516a17d25b8f31).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e230e16ba033e114e7713b067dfeaef7633f9c45).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f1218c36a7cfc1644d2835a07bd0c2c3f685c5c5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (13e6aad6f761d148800e0c2060a1d6c7de7313ba).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (13e6aad6f761d148800e0c2060a1d6c7de7313ba).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0cbdd9890de3ec44b04e4f17868691724e8ae04e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (96ab6a52dfca09b041f9fbe28f25d37e809672da).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c1437285a5e1f7f19daf852142702ffbeaa1279d)

[Kim Morrison]

Just a heads up that I will be offline from about 24 hours from now until ~October 12, and so unavailable to fix problems on nightly-testing. Any attention to this from others very much appreciated. :-)

[Ruben Van de Velde]

Have fun!

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (4f48035147cc197b8f17c21cdee678bf19756668).
You can git fetch; git checkout nightly-testing and push a fix.

[Ruben Van de Velde]

Oh hmm, looks like I didn't get access to nightly-testing after the move to forks

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b63b8797effc3c8b17749945c2190b6f95b31e11).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6e7ecde8145c50f2532fc67dd0809bfd30103080).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Ruben Van de Velde said:

Oh hmm, looks like I didn't get access to nightly-testing after the move to forks

@Ruben Van de Velde, I've sent you an invitation to join the leanprover-community nightly-testing team, which should give you the necessary permissions.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0535eef8719b8d911c143530ce7228be4948f21b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (658ea9bcb380a390b978757c1508ae2d09b26942).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e5af8a0473dbdbafe1753e27a939ea46a5448cd9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c479358b3c7772e79fbe48445a5db3d88e67bb4d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9c3512d04e785e6e468f092b132bef512d2a8b13).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5afb2e8371acdf09593080cfa85dcc7cbd04be4b).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Oooh, this is exciting. quote4's nightly-testing branch is the first Mathlib dependency to have moved to the module system, and lake exe cache is unhappy.

[Kim Morrison]

I think we need to add some file extensions to the list cache handles.

[Kim Morrison]

I think:

    (packageDir / LIBDIR  / path.withExtension "olean.private", false),
    (packageDir / LIBDIR  / path.withExtension "olean.private.hash", false),
    (packageDir / LIBDIR  / path.withExtension "olean.server", false),
    (packageDir / LIBDIR  / path.withExtension "olean.server.hash", false),

[Kim Morrison]

I added these in 6ad0b9e77b3bbe677c4898dfeb475ad7a64f33a5. Let me ping @Sebastian Ullrich, @Mario Carneiro, and @Mac Malone, as I'm running out of time before PTO and may not get this over the line.

[Kim Morrison]

Hmm, still failing, as we've got cached files available, that don't contain these files.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6ad0b9e77b3bbe677c4898dfeb475ad7a64f33a5).
You can git fetch; git checkout nightly-testing and push a fix.

[Mac Malone]

@Kim Morrison Is leantar even compatible yet with the OLean format used by the module system? I would presume that module parts are formatted somewhat differently than a full module. I guess that is a question for @Sebastian Ullrich and @Mario Carneiro ?

[Kim Morrison]

Indeed! If that's the case we'll need to revert https://github.com/leanprover-community/quote4/pull/103 against the nightly-testing branch (alternatively, temporarily pin the Mathlib nightly-testing lakefile's require statement to an particular SHA).

[Kim Morrison]

It would nevertheless be nice to get to the point of actually seeing an error message for leantar rejecting the new format.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (19120fefc79dcb7149b8de1df0bdd8e55e906622).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Okay, after touching the lakefile to invalidate the cache, it now fails while compressing to the cache ready for upload, but without any error message.

https://github.com/leanprover-community/mathlib4-nightly-testing/actions/runs/18028218364/job/51299383767#step:24:24

[Kim Morrison]

Without any error message it's hard to know what's going on, but this would be consistent with leantar encountering a module-system-olean from Qq and exploding.

[Kim Morrison]

I propose we revert quote4#103 for now, and then on a branch off Mathlib's nightly-testing we can investigate further?

[Johan Commelin]

I think that makes sense, yes.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8fac228605412cdda5db6f5e3ead9b3ea2e9c254).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0ef1b4d9d396e0d50e6dd155a49e0a2436141663).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

I'll note that if leantar compressed .olean.server/.olean.private as a generic file, it should just work and be good enough until we get to porting Mathlib itself. But apparently leantar already tries to decode those files and then fails because it doesn't expect pointers across files. Note that the error message is a few pages up because of parallelism:

uncaught exception: failure in /home/lean/.cache/mathlib/leantar-0.1.16-pre2 #[/home/lean/.cache/mathlib/c34d47807362b7eb.ltar, .lake/packages/Qq/.lake/build/lib/lean/Qq.trace, -c, git=mathlib4@0ef1b4d9d396e0d50e6dd155a49e0a2436141663, .lake/packages/Qq/.lake/build/lib/lean/Qq.olean, .lake/packages/Qq/.lake/build/lib/lean/Qq.olean.hash, .lake/packages/Qq/.lake/build/lib/lean/Qq.ilean, .lake/packages/Qq/.lake/build/lib/lean/Qq.ilean.hash, .lake/packages/Qq/.lake/build/ir/Qq.c, .lake/packages/Qq/.lake/build/ir/Qq.c.hash, .lake/packages/Qq/.lake/build/lib/lean/Qq.olean.private, .lake/packages/Qq/.lake/build/lib/lean/Qq.olean.private.hash, .lake/packages/Qq/.lake/build/lib/lean/Qq.olean.server, .lake/packages/Qq/.lake/build/lib/lean/Qq.olean.server.hash]:

thread 'main' panicked at /project/src/lgz.rs:836:47:
index out of bounds: the len is 0 but the index is 2305843009213680257
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[Sebastian Ullrich]

The general idea is that .olean/.olean.server/.olean.private each have their own olean header with its own base address but pointers may point into the address space of files prior in that list /cc @Mario Carneiro

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (dee33e95a79cc1316e54635016b51e6908c096fb).
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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9cdfe19d722653d82245284853df302912358b71).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (276dd6b5a72db24fbb8665d93693910731d83220).
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[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (58ae08fb1ed483486a3039a818e5be8c5e18efb2).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (020049f13a69cdcd81834d39f14247179661fb1c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (06dc6545071306c2c90e52669432b9cb0b598ff1).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c4e3eb3deaf376a5fcbb1ddca646780316c94a37).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3b7368e348780c0f0600c1197c34273c6dae507d).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6da53fa708b7196a725cefb032de88c4c47b4afd).
You can git fetch; git checkout nightly-testing and push a fix.

[Mario Carneiro]

Sebastian Ullrich said:

The general idea is that .olean/.olean.server/.olean.private each have their own olean header with its own base address but pointers may point into the address space of files prior in that list /cc Mario Carneiro

Note that module system oleans are supposed to be supported in the upcoming version of leantar that I've been preparing with Mac. The plan is to enable it at the same time as the local cache support

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2120cf6d1f009ef4225ac5a353d0123dd16ead2b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (144a6f544aa8de2b74777195f00c1d226bc079b2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ad67ca8abe456bf507e3f3c04f46f17f1bc3c3f0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (adba7c4862466eb8689edd2eea4bdb00fe28af3c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (adba7c4862466eb8689edd2eea4bdb00fe28af3c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c50a5525f69ad58ad9034b16d53f9395567c0a1f).
You can git fetch; git checkout nightly-testing and push a fix.

[Ruben Van de Velde]

For some reason it seems like it's failing to upload the cache

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b20b7ed23f231f211900ad0c59c294b073b5dfd8).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5d850d3c5ec0474f454aef4359bf5c512a667cf8).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (764ae2bb4a8020ffd8660f760bbdeaea9dcfd0ac).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (dcbbfc4d7be309a1ea56b77dcbbe2a3a82798ac6).
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[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (73ed2839b81d466ba8777b533da0acea06577d6d).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (07dcec0ba6435e8c7a58571484a3573a16e52e0a).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (597bf947c26681388ad5ed3f4d958fd97deacada).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9c3bb427fa8f3d8daca22183a4bdb68eb6b2b2c7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (791bc4685b99033d3d2336c8caa27145f8a84f5b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5db1fd1fa3854746dcedcf292599cc83d3d23e70).
You can git fetch; git checkout nightly-testing and push a fix.

[Markus Himmel]

Mario Carneiro said:

Note that module system oleans are supposed to be supported in the upcoming version of leantar that I've been preparing with Mac. The plan is to enable it at the same time as the local cache support

@Mario Carneiro is this already part of 0.1.16-pre2?

[Mario Carneiro]

seems not, I thought I had added it

[Mario Carneiro]

the trace file parsing for multiple-olean tarfiles is supported but not the actual olean parsing

[Mario Carneiro]

I think this will need to be fixed before mathlib's dependencies can be modulified

[Sebastian Ullrich]

Would not special-compressing these olean variations be a significantly simpler first step?

[Mario Carneiro]

I think this happens because they have a header that looks like an olean file

[Sebastian Ullrich]

Yes they do. But likely the file extension would be available to check there as well?

[Mario Carneiro]

done

[Mario Carneiro]

but I would like to release a proper parser soonish

[Sebastian Ullrich]

Thanks, that would be great! Let me know if any info is missing.

[Mario Carneiro]

what do you mean?

[Mario Carneiro]

let me know if you can't wait anymore for me to release a new version because your modulization PRs are blocked

[Mario Carneiro]

otherwise I will try to release a proper parser

[Markus Himmel]

The modularization PR for quote4 is already merged (to nightly-testing, not master), so we'll have to revert this until a new version of leantar is available.

[Mario Carneiro]

Note I'm at ITP right now so I don't have too much free time

[Markus Himmel]

That's fine. I'll just revert the Qq PR and you can take your time.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c5b4287e9750db1c1c9192af833bb3d0aa5997fd).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (91d85231c19572e2eb052210ef0042998541be1f).
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[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (7ec524ff29ebcf2708770ddf4d8d37f84a27e149)

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (67bf7c11fef2e81af67b36fa268010ac67d8aabb).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (472669a74f78b53aa2abf407435c6406d8d595d0).
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:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (f01e2ea4f5b8fdd61a5e1441d2343560a1c9b6d1)

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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (05acb6c3af9535ade2374304bab36a6d663d4ce5).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (61865c072e0e48678697113c9bd822263b469f35).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cc3de921b27e75124186c406f4c469baa5d8d4f6).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8e9a8409142b13a4dd0c531d49158057afc693d9).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f76e609368a08552752c8cfadfd47933128f2ce5).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7dce98c584239760884e81881f8397ab6907fbdb).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0b7f245bc3b49ac1cd3f94eca338639f6fa1f98b).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9722f7e2237c572e31b43c72d034af886dbfabab).
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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (624e914a3ee120139e21aba0072b3f8ab7302be7).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (153004c946eb30180b50c062c13ddc488f3ea2c0).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f799cf4289c7122fab96d61c9d63725c92e2c2a3).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7df377d90dda14cca9ec96046db7d76657b998ef).
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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (176ebb691065fa0386f9d41ae63f20e960389989).
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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6683f5ddc87d7508320fa08ca604ab9769ea04df).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c870f76ad56ecde0826479ba3909949169264e42).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7d6d06d5006e3e86c11df71d2a298612d0b754ed).
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[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (904d9aa32a55625ea137f6f7d952270e8a9e1a64)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (7bb1cf18dad0e818b2dacb14fe1625b7e45f85fe)

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:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (873e009aedeb816734ce388ad830cac6ff9e68c1)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (94fef1a4e88b73f261bd3fb897a1bca493f91bdf).
You can git fetch; git checkout nightly-testing and push a fix.

[Markus Himmel]

This seems to be a regression from leanprover-community/aesop#255, causing an aesop_cat in docs#CommAlgCat.instMonoidalCategory to run out of heartbeats. This also affects mathlib master, see #30298 (CI is still busy, but it fails on my machine).

@Jannis Limperg, do you have any opinions here? Do you think there is a way to change aesop to avoid this regression, or should mathlib try to work around this issue?

[Jannis Limperg]

Thanks for the ping, I'll try to figure out who needs to adapt.

[github mathlib4 bot]

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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (344943d97ed094c2eb259341ebdcdedc243cf1b4).
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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ab0b3a78efa0c1e032fa55bb63d18cf91ba8c709).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (bceba31f4b6c715a4e6a83fb4493a136dd44acc1).
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[Joachim Breitner]

Jannis Limperg schrieb:

Thanks for the ping, I'll try to figure out who needs to adapt.

Any news on this front?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (58cb65cfc0343e65d659f3aea855c66e966cbc67).
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[Jannis Limperg]

See this PR for the Aesop breakage: https://github.com/leanprover-community/mathlib4/pull/30347

Fixing it requires only one heartbeat bump, but Aesop becomes 35% slower overall, which is a bit much. I'll revert this change in Aesop for now.

[Jannis Limperg]

aesop#256

[github mathlib4 bot]

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:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c1e2e72e6a759e7cd35595bcb01e1dadda64273f)

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:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (556169194d932e268c0c157139eb62dcb4065b34).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f06bb3439ba08f5daf83e3953412c2f5b8fba018).
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[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2fd965ad0351ddcc7be19f0725df76a17df56e9f).
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:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (0a180fbdaef46603c83c310ae40dca54728d4a7f)

[Kim Morrison]

Lovely to see a green checkmark here on the day I'm arriving back from holidays!

@Mac Malone / @Mario Carneiro would either of you be able to give me an update on the status of leantar and/or lake cache? I'd like to cut the next release of Lean soon if possible, and would like to be able to start modulizing everything after that is out.

(Apologies if this is already discussed elsewhere -- I'm just starting to catch up on zulip on my phone while traversing airports.)

[Mac Malone]

@Kim Morrison lake cache is beginning use in core, so use in Mathlib will come significantly later. @Mario Carneiro will have to speak on leantar support for the module system. I have not been involved in that process. For the release, the one hurdle on my end I can think of is that there is a new leantar release for lake cache which is currently in use on nightly-testing. It currently uses v0.1.16-pre2, but I imagine we would one want to bump that up to v0.1.16 as part of the release process.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (0a180fbdaef46603c83c310ae40dca54728d4a7f)

[Mario Carneiro]

Is there a place I can test module olean packing with leangz? Is there a nightly branch which incorporates a modulization PR which fails currently?

[Sebastian Ullrich]

As far as we could tell, https://github.com/leanprover-community/mathlib4-nightly-testing/commit/19120fefc79dcb7149b8de1df0bdd8e55e906622 failed because of leangz/module system incompatibilities. Let's start a branch there?

[Mario Carneiro]

great, reproducing locally

[Mario Carneiro]

and FYI the file extension fix does work

[Mario Carneiro]

I see one cache issue I want to send upstream to mathlib: I would like the three olean arguments to be passed in a group and in order [olean, server, private]; what is currently being done is

cargo run --bin=leantar -- test.ltar \
  ../mathlib4/.lake/packages/Qq/.lake/build/lib/lean/Qq.trace \
  -c git=mathlib4@19120fefc79dcb7149b8de1df0bdd8e55e906622 \
  ../mathlib4/.lake/packages/Qq/.lake/build/lib/lean/Qq.olean \
  ../mathlib4/.lake/packages/Qq/.lake/build/lib/lean/Qq.olean.hash \
  ../mathlib4/.lake/packages/Qq/.lake/build/lib/lean/Qq.ilean \
  ../mathlib4/.lake/packages/Qq/.lake/build/lib/lean/Qq.ilean.hash \
  ../mathlib4/.lake/packages/Qq/.lake/build/ir/Qq.c \
  ../mathlib4/.lake/packages/Qq/.lake/build/ir/Qq.c.hash \
  ../mathlib4/.lake/packages/Qq/.lake/build/lib/lean/Qq.olean.private \
  ../mathlib4/.lake/packages/Qq/.lake/build/lib/lean/Qq.olean.private.hash \
  ../mathlib4/.lake/packages/Qq/.lake/build/lib/lean/Qq.olean.server \
  ../mathlib4/.lake/packages/Qq/.lake/build/lib/lean/Qq.olean.server.hash

[Sebastian Ullrich]

Makes sense.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (81b2656df338a656f46701b8114baac30739c671)

[Mario Carneiro]

Actually I take it back, I think it will be better not to have them as separate inputs at all. If it's okay I'm going to set it up so that it checks for the existence of .server and .private files regardless and packs all 3; you then only pass the main olean file and it figures out the rest.

[Sebastian Ullrich]

That's basically analogous to what lean -o does now so SGTM. I can't speak for lake cache but it I assume there will be a way to ensure that.

[Mario Carneiro]

Finished the compressor, I'll work on the decompressor tomorrow. For the moment I'm using a -m flag for module files so you can specify if you expect the file to exist, rather than silently ignoring the file if something fails

[Sebastian Ullrich]

Is that still easier than having leangz check for every .olean input whether paths for additional parts have been passed as well and if so process them together?

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (81b2656df338a656f46701b8114baac30739c671)

[Kim Morrison]

Given that @Mario Carneiro is actively working on this, I'm happy to delay cutting v4.25.0-rc1 so we can test this, and hopefully beginning deploying the module system this cycle.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (81b2656df338a656f46701b8114baac30739c671)

[Mario Carneiro]

Sebastian Ullrich said:

Is that still easier than having leangz check for every .olean input whether paths for additional parts have been passed as well and if so process them together?

It would be possible to do this but there isn't much connecting the files other than being adjacent to one another on the filesystem. I prefer having the archive format just pack things as described in the command line in order, especially since we're assuming the inputs are generated by another program anyway

[Mario Carneiro]

For decompression you don't need to be so picky, you just say unpack this file and it does it

[Mario Carneiro]

ah, this doesn't work either, when combined with lake cache:

 "outputs":
 {"r": "566a8d63d6b18c9f.ir",
  "o":
  ["d818c56013bb70c4.olean",
   "a8b2e45898215027.olean.server",
   "c596252d9c20803c.olean.private"],
  "i": "3c8925ca84a04080.ilean",
  "c": "c126825f4f4250bf.c"},

the olean parts are all over the place, so you have to specify them separately

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (81b2656df338a656f46701b8114baac30739c671)

[Mario Carneiro]

decompressor is working on completely trivial examples such as in the Qq test. In the end, I removed the -m and went back to the old CLI, the only constraint is that the three olean parts have to come in a group and in order

[Mario Carneiro]

pushed as leantar v0.1.16-pre3

[Mario Carneiro]

is there a mathlib branch for the cache changes?

[Mario Carneiro]

(I'm setting this work down for now, it needs testing now and perhaps @Mac Malone or @Kim Morrison can help on this front)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c7d70abd52ac916fb32813ed8c010307681c7fb2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (46487c231f44b36440c4c440dc4ccffc86ba91ba).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c6e65985e7e0f7f53f880b450ec34131c603d4f5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (81b2656df338a656f46701b8114baac30739c671)

[Kim Morrison]

I've pushed 00dd146765e6e23ed993a25d9d6e9a131dd1e834, which bumps leangz, and deb7e14ce002e53d08891a3e99eefd2717da81c1, which attempts to use the modulized quote4 again.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5ffe548bd1d363427fca34b4d02b0b6da38dfb04).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a87897fc37568b533d7f0319002d13e8701f9c34).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (20129c2f94ac03aca2e00f0c8c06098a5fd61d8e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cda8e891afb8be29c1abd6fc2ab6ffb6ce83ff09).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Argh, I'm so confused. It failed with lots of errors about things not having been found in the cache, but none of it is about quote4!

https://github.com/leanprover-community/mathlib4-nightly-testing/actions/runs/18517049327/job/52772009720#step:8:7589

[Kim Morrison]

What is the distinguishing feature of

olean not found

- Mathlib.Tactic.Linter.DirectoryDependency
- Batteries.Tactic.Lint.Basic
- Batteries.Tactic.OpenPrivate
- Batteries.Util.LibraryNote
- Batteries.Tactic.Unreachable
- ImportGraph.RequiredModules
- Batteries.Lean.Meta.Inaccessible
- Batteries.Lean.NameMapAttribute
- Batteries.Tactic.Trans
- Batteries.CodeAction.Deprecated
- Batteries.CodeAction.Attr
- Batteries.Lean.Position
- Batteries.Data.List.ArrayMap
- Batteries.Data.List.Basic
- Batteries.Data.List.Count
- Batteries.Data.List.Init.Lemmas
- Batteries.Control.ForInStep.Basic
- Batteries.Data.List.Matcher
- Batteries.Lean.EStateM
- Batteries.Lean.Except
- Batteries.Util.ExtendedBinder
- Batteries.Tactic.Init
- Batteries.Lean.Syntax
- Aesop.Check
- Aesop.Options.Public
- Aesop.Forward.PremiseIndex
- Aesop.Forward.SlotIndex
- Aesop.Forward.LevelIndex
- Aesop.RPINF.Basic
- Aesop.Index.DiscrTreeConfig
- Aesop.Nanos
- Batteries.Data.Array.Merge
- Batteries.Lean.Expr
- Aesop.Rule.Name
- Batteries.Data.Array.Basic
- Aesop.Util.UnionFind
- Aesop.Percent
- Aesop.RuleTac.FVarIdSubst
- Batteries.Control.Lemmas
- Batteries.Control.LawfulMonadState
- Aesop.Script.Tactic
- Aesop.Script.GoalWithMVars
- Batteries.Lean.MonadBacktrack
- Batteries.Tactic.PermuteGoals
- Aesop.ElabM
- Aesop.Util.Tactic.Unfold
- Batteries.Lean.Meta.UnusedNames
- Batteries.Lean.Meta.Expr
- Batteries.Lean.PersistentHashMap
- Batteries.Lean.PersistentHashSet
- Aesop.RuleSet.Name
- Aesop.Script.OptimizeSyntax
- Aesop.Search.Expansion.Simp
- Batteries.Lean.HashSet
- Aesop.Exception
- Batteries.Lean.TagAttribute
- Batteries.Tactic.SeqFocus
- Batteries.Util.ProofWanted
- Aesop.Frontend.Basic
- Batteries.WF
- Batteries.Tactic.Congr
- Batteries.Util.Cache
- ProofWidgets.Compat
- ProofWidgets.Util
- Plausible.Random
- Plausible.Attr
- Batteries.Tactic.Case
- LeanSearchClient.Basic
- Batteries.Data.Nat.Basic
- Batteries.Classes.RatCast
- Batteries.Lean.Float
- Batteries.Data.DList.Basic
- Batteries.Lean.HashMap
- Batteries.Data.Array.Init.Lemmas
- Batteries.Data.BinaryHeap
- Batteries.Data.BitVec.Basic
- Batteries.Data.ByteArray
- Batteries.Data.ByteSlice
- Batteries.Data.FloatArray
- Batteries.Lean.System.IO
- Batteries.Data.NameSet
- Batteries.Data.Nat.Digits
- Batteries.Data.Random.MersenneTwister
- Batteries.Data.Stream
- Batteries.Util.Panic
- Batteries.Data.Vector.Basic
- Batteries.Data.Vector.Lemmas
- Batteries.Lean.IO.Process
- Batteries.Lean.LawfulMonad
- Batteries.Lean.LawfulMonadLift
- Batteries.Tactic.Instances
- Batteries.Tactic.Lemma
- Batteries.Tactic.NoMatch
- Batteries.Tactic.PrintDependents
- Batteries.Tactic.PrintOpaques
- Batteries.Tactic.ShowUnused
- Batteries.Tactic.SqueezeScope
- Batteries.Util.Pickle

[Kim Morrison]

I guess unfortunately I have tested two things at once here: moving to leantar 0.1.16-pre3, and switching the quote4 dependency to a modulized version, and I really should have done those one at a time.

[Kim Morrison]

I've reverted both, to make sure we get back to green. Then I'll do leantar first.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2a0f1ee28b67ad06de91c8c0eb4e2a2a31b53b47).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9c16fb7dc3ce6b175a1fd3b99ef396b0ce2d1cc6).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Should we do these experiments on a separate branch?

[Kim Morrison]

Unfortunately the failure in nightly-testing is not actually due to these experiments! It's failing even after reverting both.

[Kim Morrison]

But I'm feeling pretty stumped as to what is causing the failure. :-(

[Sebastian Ullrich]

Hmm, could it have anything to do with files uploaded from the experiments? Not sure how that could manifest as a miss though...

[Robin Arnez]

Aren't these just those files that don't have other dependencies?

[Robin Arnez]

It doesn't seem like it got any cache

[Robin Arnez]

Wait...

Uploading cache to Azure...
Compressing cache
No files to upload

[Sebastian Ullrich]

Let's try resetting/bumping rootHashGen once more?

[Robin Arnez]

Do we always emit .ir files, even with module system disabled? Because if not then

-    (packageDir / LIBDIR / path.withExtension "ir", true),
-    (packageDir / LIBDIR / path.withExtension "ir.hash", true),
+    (packageDir / LIBDIR / path.withExtension "ir", false),
+    (packageDir / LIBDIR / path.withExtension "ir.hash", false),

[Sebastian Ullrich]

It looks like Kim reverted that and the root hash, let's see if the next build passes

[Robin Arnez]

Yeah I guess if that one works then the next one I'd try would be the one with ir not required though

[Sebastian Ullrich]

Ah yes, you're right for the next module system run

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (81b2656df338a656f46701b8114baac30739c671)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (789d7da56fa9f7fc78443b259673b0bfcab73402).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

As there at lots of new interesting failures on nightly-testing (and also Batteries/Qq/Aesop), when I get back to this tomorrow I'll investigate getting cache to work on the modulized Qq on a branch (starting from the green commit above), to avoid having to interact with the main nightly-testing work.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8fb3ae873be593e80a76daf6b0c88b0c54e7f014).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0a9f66d2a556a287885703bb8ba668e7d971a956).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6b832de385b24773084bf5e0afc077ef3818e85b).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

(This will stay broken until this evening, waiting on lean#10799.)

[Kim Morrison]

Kim Morrison said:

As there at lots of new interesting failures on nightly-testing (and also Batteries/Qq/Aesop), when I get back to this tomorrow I'll investigate getting cache to work on the modulized Qq on a branch (starting from the green commit above), to avoid having to interact with the main nightly-testing work.

I've started doing this in nightly#90.

Bumping leangz causes no problems, but as soon as we add

    (packageDir / LIBDIR / path.withExtension "ir", false),
    (packageDir / LIBDIR / path.withExtension "ir.hash", false),
    (packageDir / LIBDIR / path.withExtension "olean.private", false),
    (packageDir / LIBDIR / path.withExtension "olean.private.hash", false),
    (packageDir / LIBDIR / path.withExtension "olean.server", false),
    (packageDir / LIBDIR / path.withExtension "olean.server.hash", false),

(note that .ir and .ir.hash are optional here, unlike my previous attempt) then the cache check fails in the same way it did previously:

https://github.com/leanprover-community/mathlib4-nightly-testing/actions/runs/18547466841/job/52868736303?pr=90#step:8:7594

[Kim Morrison]

Ideas very welcome. :-)

[Thomas Murrills]

Just in case it helps minimize anything (or provides a hint that the file content is not actually relevant?), I noticed the failing Batteries.Lean.Meta.Expr is a very small file, containing only a namespaced instance:

Batteries.Lean.Meta.Expr

/-
Copyright (c) 2022 Jannis Limperg. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jannis Limperg
-/

import Lean.Expr

namespace Lean.Literal

instance : Ord Literal where
  compare
    | natVal n₁, natVal n₂ => compare n₁ n₂
    | strVal s₁, strVal s₂ => compare s₁ s₂
    | natVal _, strVal _ => .lt
    | strVal _, natVal _ => .gt

(I'll also note, just to fact-find, that some of these failing files have no imports.)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (09c801ea5c5fd16373f8dfbd49b0d1cebe16c88d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0b36ca667a886519e167614f17cc46d14fe9ad24).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6c45e02c308972007ece49916cc1aedd227913bc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ee63490e8db33a2802ac4f1c33351e66cb5fef64).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

New nightly has arrived but looks like there's still loads of inaccessible names (edit: ah, the previous fix may have focused on Batteries)? /cc @Joachim Breitner

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ff99d94ff1cac8ed23019d2e7f79192c24016e77).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b4b94e10eff629a21d1fe94c9d446e2c2337e2c9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3aa31a7994adb7e167601f557893f52873920ab4).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Fixed in lean#10809 and lean#10810. I'm intending to re-release nightly-2025-10-16 after those are in, otherwise I won't be able to get this green until Monday.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ab1cf50a3b334a5385c7e127157167cdf4380fb2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (fd11747f8806e54ebef10d92ea8e73938c49be0a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I've just re-released nightly-2025-10-16.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1240e30a9efc3426ca095b4477b7055fc4e3c5ff).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9da4d23e6d9f46c3cb9ebc3f81efa75c83e987b1).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Ah, my efforts on nightly#90 (trying to use modulize'd quote4) are in vain: because of our new security measures, CI only uses the cache executable from the master branch, or nightly-testing branch for PRs to the mathlib4-nightly-testing fork. So the step I'm trying to test has to be done on nightly-testing itself.

I'm hopeful still (despite the failure above), that nightly-testing will get to green again shortly.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ea509a6cf819b09c735eb4cfd5843ece4390bf38).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2f924cb79c413ce5cf158cf653bb8fe287622b1e).
You can git fetch; git checkout nightly-testing and push a fix.

[Markus Himmel]

During the Upload cache to Azure step here, we get a lot of HTTP 409 conflict "The specified blob already exists" error messages.

Then during the Verify cache step here it looks like we're fetching the wrong files for (some of?) mathlib's dependencies.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ebecc07d6165d213c650fb51d9a5adb48d711a0f).
You can git fetch; git checkout nightly-testing and push a fix.

[Markus Himmel]

It looks like this run now used the old nightly-2025-10-16 again, not the re-released one?

[Kim Morrison]

Hm, I deleted the toolchains from all the Hoskinson machines.

[Kim Morrison]

but yes

[Markus Himmel]

That job ran on hoskinson7

[Sebastian Ullrich]

Will the cache have to be invalidated as well? Maybe easier to use the PR toolchain after all if one of them is in the correct state?

[Markus Himmel]

In the last commit I force-invalidated the cache by incrementing rootCacheGeneration in Cache/IO.lean

[Kim Morrison]

We should get nightly-2025-10-17 shortly in any case.

[Kim Morrison]

I'm unfortunately about to go offline for the weekend. :-(

[Kim Morrison]

I see now that nightly-testing-2025-10-13 (when we last succeeded) actually had:

    (packageDir / LIBDIR / path.withExtension "olean.private", false),
    (packageDir / LIBDIR / path.withExtension "olean.private.hash", false),
    (packageDir / LIBDIR / path.withExtension "olean.server", false),
    (packageDir / LIBDIR / path.withExtension "olean.server.hash", false),

but these have been commented out on current nightly-testing. As far as I can tell, this shouldn't make any difference, because none of the upstream nightly-testing branches we're using are on the module system, so there shouldn't be any olean.private or olean.server files anywhere.

[Sebastian Ullrich]

If I succeeded in speeding up release CI, we should get a nightly in about two hours. Here's hoping I, or anyone else, didn't break it :smiling_face_with_tear:

[Sebastian Ullrich]

But if it's okay to fall back to PR toolchains on nightly-testing, I'm sure we'll find a working setup

[Sebastian Ullrich]

Sebastian Ullrich said:

If I succeeded in speeding up release CI, we should get a nightly in about two hours. Here's hoping I, or anyone else, didn't break it :smiling_face_with_tear:

Pre-testing at #10813

[Kim Morrison]

lean#10813

[Sebastian Ullrich]

It's green! https://github.com/leanprover-community/mathlib4-nightly-testing/actions/runs/18585359830/job/52988031064

[Sebastian Ullrich]

Oops, it failed in the post-build step... https://github.com/leanprover-community/mathlib4-nightly-testing/actions/runs/18585359830/job/52991839284 /cc @Marc Huisinga - looks like we can just update the test output there?

[Marc Huisinga]

aesop#259

I don't have merge rights for Aesop.

[Sebastian Ullrich]

Thanks! I think it's okay to point nightly-testing at your branch until it is merged

[Sebastian Ullrich]

That is, Mathlib nightly-testing

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (c84ee75fe89338a5ca15ea04ad57789461a5cc7a)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a349d1aa691cd597a8e5970325d9cb51310a7cea).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (42fb65f75c09dba4b7a2c4bd1d0c9e9e7c4cb10f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1b8918e9f7d6591414d0354289cec29fa1bab47d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ea4441a212713dc97ba09851574759d2e4caa710).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3284690d85f1592779d0e79083aff6ebc6cc67c3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5099a32a08c42f9b03cffc2182c118175fe6222c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (125e5b4d14ef8e6b0c53c90ca39a9f7d62744bfd).
You can git fetch; git checkout nightly-testing and push a fix.

[Mario Carneiro]

Kim Morrison said:

I see now that nightly-testing-2025-10-13 (when we last succeeded) actually had:

    (packageDir / LIBDIR / path.withExtension "olean.private", false),
    (packageDir / LIBDIR / path.withExtension "olean.private.hash", false),
    (packageDir / LIBDIR / path.withExtension "olean.server", false),
    (packageDir / LIBDIR / path.withExtension "olean.server.hash", false),

but these have been commented out on current nightly-testing. As far as I can tell, this shouldn't make any difference, because none of the upstream nightly-testing branches we're using are on the module system, so there shouldn't be any olean.private or olean.server files anywhere.

reminder that in the last leangz revision, you need to pass the three files [olean, olean.server, olean.private] together in that order and with no intervening files (the hash files can come after in any order)

[Mario Carneiro]

Also, just to double check: in a non-module file, we only have .olean, and in a module we have .olean, .olean.server, .olean.private, even if the latter two are empty, right?

[Mario Carneiro]

empty module files compress very well btw, it's only about 2 extra bytes of content, so the majority of the space is in the extra paths themselves (which are left uncompressed in the archive)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3a09765e211bee40f7eebb7529a4b7dd90ba202a).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Kim Morrison said:

Ah, my efforts on nightly#90 (trying to use modulize'd quote4) are in vain: because of our new security measures, CI only uses the cache executable from the master branch, or nightly-testing branch for PRs to the mathlib4-nightly-testing fork. So the step I'm trying to test has to be done on nightly-testing itself.

If there already is a special case for nightly-testing, wouldn't temporarily adding another one for this branch be the simplest solution?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6f1b9cb04c16d61644c3fcecbd5b097f76ae1ec9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2ae9d73776a02cf003e7c3270edf2447948cdeec).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c2b96d5754b133e957736e3fa35c26a016a5a2b0).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (8ed5356eeb868bf878ced71b674c68b83efeefed).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Marc Huisinga said:

aesop#259

I don't have merge rights for Aesop.

merged. (I merged master into nightly-testing, and then nightly-testing into this branch first, to get Github to show the desired diff.)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (3aad5efa232cac1b73faa6501e2e3056f23a261b)

[Kim Morrison]

Mario Carneiro said:

reminder that in the last leangz revision, you need to pass the three files [olean, olean.server, olean.private] together in that order and with no intervening files (the hash files can come after in any order)

Fixed now, thanks!

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (3aad5efa232cac1b73faa6501e2e3056f23a261b)

[Kim Morrison]

Okay, nightly#92 is the new attempt to switch nightly-testing to using the modulized version of quote4.

[Sebastian Ullrich]

The suspense, having to wait for all of Mathlib to build first :) ... but I understand that adjusting the CI script to build less may not be easier than just waiting

[Kim Morrison]

I don't trust testing the cache in any way but exactly as CI does it...

[Kim Morrison]

Lots of errors during uploading the cache: https://github.com/leanprover-community/mathlib4-nightly-testing/actions/runs/18646243547/job/53154174437?pr=92#step:24:7434

[Sebastian Ullrich]

"The specified blob already exists", is this unexpected? Does this not happen on other branches?

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (f23e0ba9024f6f842294066395815de292210482)

[Sebastian Ullrich]

2025-10-20T10:54:12.3153137Z packing ./Mathlib/Algebra/AddConstMap/Basic.lean as 84aa7d2e56c1e9f1.ltar

This is not the hash I get locally on the same branch

packing ./Mathlib/Algebra/AddConstMap/Basic.lean as ccb579e368ee0270.ltar

[Mario Carneiro]

Are there any nonempty module files in this test run? I want to make sure leangz is tested on module files that actually do something before the next release

[Mario Carneiro]

(The error sounds unrelated to leangz though, this hash is computed by lean exe cache)

[Sebastian Ullrich]

Yes, the PR should include quote4 fully ported

[Mario Carneiro]

by nonempty I mean the .server file is not the minimum possible size

[Sebastian Ullrich]

A single docstring is sufficient for that

[Mario Carneiro]

ah, I guess I was testing Qq.olean which would explain it

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (f23e0ba9024f6f842294066395815de292210482)

[Sebastian Ullrich]

@Kim Morrison As I couldn't push to your PR, I created a new branch right in the repo at https://github.com/leanprover-community/mathlib4-nightly-testing/pull/94 (and also I accidentally closed yours). A first test using only import Qq worked now, I think the only mistake before was that the cache changes were not active for the executable taken from master. I started a full run now, if that one works (Build (push), ignore Build (fork) for now) I think we can merge this minus the changes to build.in.yml.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (f23e0ba9024f6f842294066395815de292210482)

[Kim Morrison]

Welcome to the module system! :-) Mathlib's nightly-testing is now using a modulized version of the quote4 library, and the cache system is working with it! Congratulations to everyone involved. :-)

I'm now starting the release of v4.25.0-rc1 as nightly-2025-10-20. We'll progressively move more of Mathlib's dependencies over to the module system during this cycle.

[Kim Morrison]

oh --- maybe not ... I now see that lean#10819 has not been merged yet, but is essential for module-izing Batteries.

We may end up cutting an rc2 with that.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (f23e0ba9024f6f842294066395815de292210482)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9ffe5fd0791f1d271211fd961704b8f0a8d7f2af).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

Ah my bad, I didn't remember I was using the same branch for batteries and now newer Mathlib fixes

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch `` does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: **File URL:** https://github.com/leanprover-community/mathlib4-nightly-testing/blob//lean-toolchain **Current content:**

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (afe13f6e909d350381903828473a7fe31be315cd)

[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch bump/v4.25.0 does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: bump/v4.25.0
File URL: https://github.com/leanprover-community/mathlib4-nightly-testing/blob/9f149a1f6459fc0c00884abbab0db5006d0a1115/lean-toolchain
Current content: leanprover/lean4:v4.25.0-rc1

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (afe13f6e909d350381903828473a7fe31be315cd)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (83497509a86713ec3aa7c5895505520319afb997).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (afe13f6e909d350381903828473a7fe31be315cd)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b14b433fa7c95050360991bc93ea63d0ad664968).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d1609034e1b7a04689362d720b5d177ed0d8bc73).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6c18cb8b60907b1c9398da5f7489e50c4f5608c7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1e88c15c34c7527f472a52329fcddb849bce7974).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f251ae5ed4014e18ea642e0b4b867fabea7dcd5b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6e593a5a7b83f7c3f6e15e8ddba2f22af608eb1b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b5bcd50aa92302a4e3a1367aab4a768107000037).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cc0c98e71639d5239ac7c1b3e532f666fa3de0cb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cd6ddfd1969a31b2958625e8110b1c26e2c0b835).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5c3dd696b785d509ceafbc15ef3e36835b98e51f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (df5d6b68a9a59dde331426d02d4d6c22c1c2cbe2).
You can git fetch; git checkout nightly-testing and push a fix.

[Sebastian Ullrich]

@Mario Carneiro I only just realized, is it correct that all the .olean variants of a module are stored in a single .ltar? That wouldn't allow us to skip downloading the .private data, which is not necessary for most uses. I assume the compressed .private data is/could be made a suffix of the archive data so that it could be saved in a separate .ltar.private, with only the main .ltar being necessary to decompress all other files

[Sebastian Ullrich]

As a simpler solution, we could also have cache upload separate .ltar.all and .ltar.all-but-private bundles, which should be <50% space overhead, so might be okay. I guess I could even use current leantar by passing a faux empty .private file for the latter archive, might give that a try tomorrow. Let me know if we should move this discussion somewhere else.

[Kim Morrison]

@Henrik Böving, Aesop's nightly-testing branch is failing as a consequence of lean#10625, could you please take a look? (Pinging @Jannis Limperg as well.)

[Kim Morrison]

(I think lean#10625 probably shouldn't have been merged until we knew how to fix Batteries/Aesop/Mathlib, as now we're preventing the testing of other PRs.)

[Henrik Böving]

I'm somewhat confused that this breaks, the instance from ST to MetaM still exists and works at the moment. If its written as a liftM (n := MetaM) instead it goes through.

[Henrik Böving]

I'll try to take a deeper look once I'm at the office

[Henrik Böving]

fix #10940

[Henrik Böving]

While building mathlib with this PR I noticed another funny new failure, the sleep heartbeats tactic: https://github.com/leanprover-community/mathlib4/blob/master/Mathlib/Util/SleepHeartbeats.lean has a test:

example : 1 = 1 := by
  sleep_heartbeats 1000
  rfl

this test basically runs

def sleepAtLeastHeartbeats (n : Nat) : IO Unit := do
  let i ← IO.getNumHeartbeats
  while (← IO.getNumHeartbeats) < i + n do
    continue

and hopes that something bumps the heartbeats, but thanks to my optimizations this loop is now completely allocation free so this test just hangs, I would suggest to delete it^^

[Henrik Böving]

In any case I pushed an update using a PR toolchain from #10940 to nightly-testing of mathlib now so people can keep experimenting I guess

[Sebastian Ullrich]

Pushed a quick fix using new API

[Mario Carneiro]

@Sebastian Ullrich I think separate ltar.private is not a high priority. The files are not that big to begin with, file overhead is significant. I think more important than that is improving cache so that it doesn't have to download all 7000 or so cache files and unpack everything regardless of what part of mathlib you are using

[Mario Carneiro]

You can indeed make an all-but-private file easily, just don't include the .server and .private files in the archive

[Mario Carneiro]

if you want server but not private, that's not currently supported (I feel like I asked about that and was told it can't happen but here we are I guess) but it would not be hard to support

[Sebastian Ullrich]

I may have interpreted your previous question too specifically then: lake will never produce .server without .private but it still makes sense for cache to only produce the former. .olean.private is more than 50% of .lake, I would say that's a pretty great start!

[Sebastian Ullrich]

While we're at it, not sure I mentioned before that .ir can also be compressed as a (stand-alone) .olean file

[Sebastian Ullrich]

Agreed that in the future, we should save even more

[Mario Carneiro]

I want to not do this in the current dev cycle, it should be done as part of a clear user facing tool which needs it

[Mario Carneiro]

ltar use is a tiny fraction of olean use, you can just not unpack some parts of the archive

[Sebastian Ullrich]

True. Is that possible right now or would need a patch?

[Mario Carneiro]

that would need a patch, or you can delete files after the fact

[Sebastian Ullrich]

(but also I believe for some users downloading the ltars is still a significant bottleneck)

[Mario Carneiro]

downloading the ltars is significant but that is because they download all of mathlib, this is the main problem

[Sebastian Ullrich]

I would say these two optimizations are orthogonal so we should do both, in their own time

[Mario Carneiro]

but keep in mind what I mentioned about file overhead: we are already downloading a lot of files and file overhead is significant when it comes to curl. Splitting into 2 or 3 pieces will make that component worse and may cancel the benefits of downloading less

[Mario Carneiro]

another possible parlor trick is to take a ltar with a private section and truncate it off

[Sebastian Ullrich]

Yes but I would expect in 95% of cases you will only need the main file

[Mario Carneiro]

i.e. you don't need to repack to remove the private section

[Sebastian Ullrich]

We can experiment with this when we get there

[Mario Carneiro]

@Kim Morrison I released a non prerelease version of ltar, v0.1.16, which is the same as pre4. I think I missed the avenue to avoid having prereleases on master but could you add this to the PR? Is there a PR? I can't follow these processes very well anymore

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cbe003a74d122d89e4614d515f37cf96fe37814b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (21bbf68c1bf4a90e2060ca0922ca6087a867f0fb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2dfc304d6bf71e4281b148e36f7f6f943a2b28c6).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7db953b1c5d3fdef287052f1cc71200abdb32fb3).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Mario Carneiro said:

Kim Morrison I released a non prerelease version of ltar, v0.1.16, which is the same as pre4. I think I missed the avenue to avoid having prereleases on master but could you add this to the PR? Is there a PR? I can't follow these processes very well anymore

I will make a PR to Mathlib master moving to v0.1.16.

[Kim Morrison]

#30874

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (64cd5c6eff27f7d865d4e12ea5b0cd9c6cfc8cbd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (201b0f136af351277af1ff1ed19263bb8c0ce846).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1ab508e0740e3dfa8bafe1a060b300193f17140f).
You can git fetch; git checkout nightly-testing and push a fix.

[Markus Himmel]

Lots of aesop tests failing with aesop.check.tree: search tree contains a cycle.

[Sebastian Ullrich]

Now that sounds like an especially strange failure. /cc @Jannis Limperg

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (94c44aac99a307dcaf6258aad01c1fade4ffaf93).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d0bc5692ff0733547faccd064fb5f63d9fc8d64a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d76573adf01e5d26e0b4b0bbee9d32ebea7c298a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I've temporarily removed the AesopTest build from nightly-testing CI, so we hopefully get to green again...

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (b1e9ded89f681a414f4fe43319a9a0372fe4e750)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (94930ab4a8c644cb0a19819f98ac8276a5016d55).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (7d2e53aea6e90d6ff50f8081615c53963d000623)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0c52b458f6e0640e57b7c5c4334a7e85177385f9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (260dcb323a629242b0188e471f1f538e5bc7734d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (daa21570b791337ce33135a2d2acceab9c451734)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (965e3c7a87024728ff1f41a7670a0a3c3b09a6dc).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

lean#10934 broke two proofs in Mathlib, @Henrik Böving and @Robin Arnez.

[Kim Morrison]

I've pushed horrific temporary fixes in f512a44ba0.

I'm tempted to suggest that we revert #10934 and then proceed more gradually, to find out which annotation change caused this problem. Other ideas?

[Kim Morrison]

(There are some other failures from the same cause, but at least grind happily handles these. These changes are in 84c2cec795.)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (84c2cec795e7d2aa67cbdccfe8178412d3aead85)

[Henrik Böving]

I'd assume it was not any of the annotations but the fact that rob also changed the implication instance on the fly?

[Henrik Böving]

I'll revert that part and see if it breaks

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (84c2cec795e7d2aa67cbdccfe8178412d3aead85)

[Robin Arnez]

Right, see also what happened at https://github.com/leanprover/lean4/pull/10934/files#diff-37a274b16b6fff0fa57265829a44c1e9556ea3cadff1f4297b2f3bbe7a4d89aa, the fix should be to add synthInstance.maxSize somewhere (athough it feels like this is a bug)

[Robin Arnez]

To be precise, the maxSize calculation somehow decided to be exponential in regard to depth rather than linear.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (84c2cec795e7d2aa67cbdccfe8178412d3aead85)

[Henrik Böving]

Okay I have a reverter open here #11007 and the more tame version here #11008 based on top of nightly-with-mathlib, it doesn't trigger the instance size explosion in the grind test and I also tested it against mathlib precisely without @Kim Morrison fixes applied and tested against the PR toolchain here https://github.com/leanprover-community/mathlib4-nightly-testing/pull/101/files, I'll merge the more tame Decidable fix to master once that is finished.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (62bbeed300d9533ecafc02e0717f7134852f7d07).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (e3d159a14fe17c79b953b7d56f38ebdde8248062)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (836def65b0448631b143fa6586647d88a72edee8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1e3d8d42502d0f1029ff24d659034001d98a8634).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a75fd12d1fe66eeab66f90c82070973827d1c3ce).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (285dee2607c094561df0237856babda8e60e1458).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (e3d159a14fe17c79b953b7d56f38ebdde8248062)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c64b47e6f3fb73f3e7789ccf6e2e417a79f7e4af).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (97af697c999f402cbe99e6a9dc288c8ec11e8b5a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (cb0e79929e2a5a2d642721c39b4eb7f89556842e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7e956ac8ce15d16a18c391826db47692d643ea2c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ee2618e9bf79552fd00ad341e51daa8fe2293e29).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5856e8689004ed6e3bf1dfaa734a9bab1f621b37).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (985e8a879b3b159f02f4531edc11f5d3be60d65b)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (710a14e42521cda96239ddf119c275cfbf7490dd).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (63a6a335a75f64bb4070ad61c5be013008c38a51).
You can git fetch; git checkout nightly-testing and push a fix.

[Markus Himmel]

@Kim Morrison I have temporarily commented out the premise selection test that you added recently because I really need this nightly-with-mathlib. I don't understand what the problem is; it fails because it doesn't recognize the set_premise_selector command.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (fbc746105b79879635ee31215ede6dca1a613e0e).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Markus Himmel said:

Kim Morrison I have temporarily commented out the premise selection test that you added recently because I really need this nightly-with-mathlib. I don't understand what the problem is; it fails because it doesn't recognize the set_premise_selector command.

No problem, I'll fix it later.

[Kim Morrison]

There are several failing tests. Easy to fix, I'll do it now.

[Markus Himmel]

Already done :)

[Kim Morrison]

Did you push? I still see symbolFrequency.lean and TacticAnalysis.lean tests with failures.

[Markus Himmel]

No, I got a conflict with your commit

[Markus Himmel]

So I'll let you do the s/PremiseSelection/LibrarySuggestions

[Kim Morrison]

Pushed.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (5acb7976977f197185d79a16e6a4a12beb6e96f8)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (606d1ed9e20b323ede055394ef5d18367fdaff2f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c4ff0c86bc3e0995b2e9e572445cd71faa52e7a2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

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[Kim Morrison]

I'm having a bit of trouble with a grind proof in FiveWheelLike by @John Talbot. (Pinging, as maybe they can help me out. :-)

We have a proof that used to be by grind, which by grind => finish? tells us was just running

by
  cases hw
  grind => lia

which is succeeding on nightly-testing-green but now fails on nightly-testing. Leo made quite a few changes to the order and offset modules over the weekend, so something in there has caused this to break. However I'm having trouble sorting it out and would like to be able to move on to other things.

Would anyone be interested in trying to get this proof to work again on nightly-testing?

The lia call now fails with:

[cutsat] Assignment satisfying linear constraints ▼
  [assign] r := 0
  [assign] k := 0
  [assign] #{x | ∀ ⦃y : α⦄, y ∈ s ∩ t → G.Adj x y}ᶜ := 0
  [assign] #{x | ∀ ⦃y : α⦄, y ∈ s ∩ t → G.Adj x y} := 0
  [assign] #(s ∩ t) := 0
  [assign] #({v} ∪ ({w₁} ∪ ({w₂} ∪ (s ∪ t)))) := 3
  [assign] ∑ w ∈ s ∩ t, G.degree w := 1
  [assign] ∑ w ∈ {v} ∪ ({w₁} ∪ ({w₂} ∪ (s ∪ t))), G.degree w := 0

which is easy to contradict, but I haven't explored further.

[github mathlib4 bot]

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[Kim Morrison]

I've now commented out the broken proofs in FiveWheelLike in 34e039175fd7f4eaa7635f9e0df6dc3299ea0b73. This commit can be reverted by anyone interested in fixing this.

[github mathlib4 bot]

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[John Talbot]

@Kim Morrison I'll take a look at this and try to fix it

[John Talbot]

I've fixed that proof but I'm afraid I wasn't sure how to push this to the correct branch so it is currently just on my fork here:
https://github.com/jt496/mathlib4/blob/nightly-testing/Mathlib/Combinatorics/SimpleGraph/FiveWheelLike.lean

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[Robin Arnez]

John Talbot schrieb:

I've fixed that proof but I'm afraid I wasn't sure how to push this to the correct branch so it is currently just on my fork here:
https://github.com/jt496/mathlib4/blob/nightly-testing/Mathlib/Combinatorics/SimpleGraph/FiveWheelLike.lean

No problem, I merged it

[github mathlib4 bot]

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[Kevin Buzzard]

John Talbot said:

I've fixed that proof but I'm afraid I wasn't sure how to push this to the correct branch so it is currently just on my fork here:
https://github.com/jt496/mathlib4/blob/nightly-testing/Mathlib/Combinatorics/SimpleGraph/FiveWheelLike.lean

Thanks John!

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[Robin Arnez]

Uhh why did we revert back to nightly-2025-11-02?

[github mathlib4 bot]

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[Kim Morrison]

Ah, my mistake. I was get nightly#102 back up to date to merge, and since Kevin made review suggestions there, I then merged it back into nightly-testing, accidentally reverting the toolchain.

[github mathlib4 bot]

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[Kim Morrison]

I've hit merge on

chore: adaptations for batteries#1441 #30138

and separately merged it directly into nightly-testing.

[github mathlib4 bot]

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[Kim Morrison]

Oops, I pushed a commit removed Std.TreeSet.union, as this now exists upstream. However it seems the behaviour of that union is different, as the linarith test that depends on it now fails.

[Kim Morrison]

I need to go to sleep, but in the morning I will probably just restore this function under a different name to preserve this functionality in linarith (oracle := .fourierMotzkin).

[github mathlib4 bot]

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[Kim Morrison]

I've pushed a fix, renaming the FourierMotzkin implementation of union to union', and making it private. 92404470b1

@Wojciech Różowski, you may want to sanity check this, or at least be aware that there are downstream implementations of union which differ from yours in lean#10896!

[Robin Arnez]

I wonder how the two implementations could be much different. Is it order of arguments or something?

[Kim Morrison]

The new implementation adds the items from the smaller map to the bigger one. That presumably affects not-distinguished-by-the-order-but-unequal keys.

[Robin Arnez]

I'm not sure how this could be the case, see e.g.

theorem getKey?_union [TransCmp cmp] {k : α} : (t₁ ∪ t₂).getKey? k = (t₂.getKey? k).or (t₁.getKey? k)

[Robin Arnez]

Actually, I get it, TreeSet.insert uses insertIfNew, right? Then it feels like we should just simply need to swap the order.

[Robin Arnez]

The previous implementation favoring the key in the first map and the new implementation favoring the key in the second map

[Kim Morrison]

(I'm disinclined to touch this, as the Fourier-Motzkin oracle is unused outside of tests, and moreover grind, but I won't oppose cleaning it up!)

[github mathlib4 bot]

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[Wojciech Różowski]

Thanks @Kim Morrison for flagging this. Yes precisely, in the case of HashSet insert is implemented in terms of insertEntryIfNew, which results in a swapped order of prioritising elements. In the union I implemented that relies on insertEntry (modulo swapping the order in order to iterate through the smaller collection, but behaving the same way as if we would just keep folding using insertEntry).

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[Kim Morrison]

FromLRAT is failing, after changes to the String API. I've commented it out in 6f868c676a6. @Mario Carneiro, pinging in case you want to restore it. Given that we now have bv_decide, and FromLRAT has apparently been unused for some time, an alternative might be to simply remove this file?

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[Markus Himmel]

Kim Morrison said:

FromLRAT is failing, after changes to the String API.

I fixed the issue and restored the file. The issue wasn't with the string API, it was due to the fact that the file uses Std.Internal.Parsec, which, being an internal module, changed its API without notice.

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[Bryan Gin-ge Chen]

Is fixed by #31182

[Kim Morrison]

I had to do the merge of master into nightly-testing manually, because of the conflict in lake-manifest. Hopefully going green soon.

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[github mathlib4 bot]

:warning: Warning: The lean-toolchain file in bump branch bump/v4.26.0 does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: bump/v4.26.0
File URL: https://github.com/leanprover-community/mathlib4-nightly-testing/blob/ec1e4cdcb8cb71da49a21995de8814795ea7b07f/lean-toolchain
Current content: leanprover/lean4:v4.26.0-rc1

This needs to be fixed for the nightly testing process to work correctly.

[github mathlib4 bot]

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:warning: Warning: The lean-toolchain file in bump branch bump/v4.26.0 does not match the expected pattern 'leanprover/lean4:nightly-YYYY-MM-DD'.

Branch: bump/v4.26.0
File URL: https://github.com/leanprover-community/mathlib4-nightly-testing/blob/ec1e4cdcb8cb71da49a21995de8814795ea7b07f/lean-toolchain
Current content: leanprover/lean4:v4.26.0-rc1

This needs to be fixed for the nightly testing process to work correctly.

[Kim Morrison]

I've just created bump/v4.27.0 from master, and set the lean-toolchain there to nightly-2025-11-17. Hopefully that will resolve these warnings.

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:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (a911b002d50c434ca1a97696822583ba95da6317)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (69f7ed6b55c6bcb154e63991c8b0131b6baf2c99).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (a911b002d50c434ca1a97696822583ba95da6317)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1ea88e465819146a21bef2d5b75b9f1b1b82ac21).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9ce81b10927d4c9c4126c6b5c985064f147a6e30).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

@Henrik Böving nightly-testing is failing with "PANIC at Lean.Compiler.LCNF.UnreachableBranches.Value.addChoice" when compiling Cache/Requests.lean.

[Kim Morrison]

Presumably this is lean#11362.

[Kim Morrison]

minimization at lean#11393

[Kim Morrison]

fix, according to Claude, in lean#11394

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (90249a695a1d6c2f4ff8cde64f5b59f375500d20).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a33d629159519ae71dcd3ae2de858d3fb9732def).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I just merged lean-pr-testing-10204 into aesop's nightly testing, and ran a lake update. There are still String related issues.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d6e7ecf1621aa073a8e3fdc69133961c1a9b1db2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ff76558b4c367ef141c92b4d12a8ee18ed563b33).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Kim Morrison said:

There are still String related issues.

These were from #25945; fixed using .copy.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b0a6d9133033e62eb00603b1c4394c181a17a93f).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

The remaining error on nightly-testing is from a genuine grind bug, hopefully fixed soon.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e142c62e0208c576a491c84eaefbb353ae3b476e).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a9faeaabfed78e92b3e47f6c2f2b3995c3a0b0f2).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (4481ab69015a370e3b2f8da6fceb36e47017fd09).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

I've replaced the two places affected by this grind bug with older proofs and adaptation notes, in case the fix isn't merged immediately.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (42c6ec6c6d7049b7b774bad2ee7b91c789e01fa8)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (66b533bc65e58d85d4b4d092a4f59c7aa6b4d21b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b3687cde5b3ccbaf04e5c3b772a97465ff3949b3).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9d1030d34c5b7ba7f8bd4c840ed562aa6a07a680).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ae8e7b63aea6f3181e3a76e98a859aaf27843c3f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7d99553a5773d5c6c1775e02033fedb5302a10b1).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2f5a01d8dc80c83834d6dfe88a9142a12d3fc638).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (3fdd607ea6ff78249b607b72aaea2f92c1152f22)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (2100ee662d0d4b3233534f70716a04f15f74c300)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (25e595925d652b22eb0343d8ef0a417e4f58a5c5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (fb74640173cdca998957d776ed55ad3ab7e4fbfb).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (871f8b1529fd5062d298a8265545464f2257ca20).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (2100ee662d0d4b3233534f70716a04f15f74c300)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ff1b41e0d1ce681e5abe01e23431a15af5438f44).
You can git fetch; git checkout nightly-testing and push a fix.

[Ruben Van de Velde]

Could we add a lia → cutsat alias in mathlib master already so we can see what other changes are left on nightly-testing?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (56b89728291f11b1aefc409b501bfdddeb6ed45c).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

PR for the lia alias: https://github.com/leanprover-community/mathlib4/pull/32376

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (4c7a6b2ec6b6cfebf6521848b0ee53796a2b66dc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5bfa1623542d7f245e45ac880c26cfe8f9ecc5ea).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e8eda6e4e891ac595a125e06f7c8b5f9ad3ec4aa).
You can git fetch; git checkout nightly-testing and push a fix.

[Ruben Van de Velde]

Ruben Van de Velde said:

Could we add a lia → cutsat alias in mathlib master already so we can see what other changes are left on nightly-testing?

@Kim Morrison thanks - I tried to fix the linter on #32376 but failed

[Kim Morrison]

@Ruben Van de Velde, fixed.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (453cce856d41bd2715d9055ecdc877015033095f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (5d3913854dd814ae3cf295853b4a10ce74116670).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (47232c86ec8a757736df7a7e225fff8044ec0913)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (42f7d9c707cc83f542a69d046f73c15975ed20ce).
You can git fetch; git checkout nightly-testing and push a fix.

[Joachim Breitner]

discover-lean-pr-testing fails in a way I don't quite understand:

=== PRS =========================
11482 11492 11493
=== prs.txt =====================
11482
11492
11493
Error: Process completed with exit code 1.

[Joachim Breitner]

Ah, maybe this line fails if there are no adaption branches (and it’s normal for this job to fail if there are none)?

  MATCHING_BRANCHES=$(git branch -r | grep -f prs.txt | grep "lean-pr-testing")

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (42f7d9c707cc83f542a69d046f73c15975ed20ce)

[Joachim Breitner]

Also linting failed, restarting helped. Got a new nightly green.

[Snir Broshi]

Now that #32376 was merged, #32431 fixes some remaining cutsats from PRs that were merged at the same time

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (96d98dd8f37a7723fdb3f43a766a7fea4580b92b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (42f7d9c707cc83f542a69d046f73c15975ed20ce)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (d8fd1ebe820a2953f0092a2b117aa51d41485b40).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a3f0e4ffc7efee40e9e57d1386546fe18e35875d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (ce00192bf8058fc20bcc4188abf983d16be18ff7)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (beb1a1dc8899a9b31359eb461c1562bbced8ec2a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ed79179ced7b9a869b525cf25376327dca0be1c5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f7826d333e7f78a0636e6353ac61dd003abeb484).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ab1ad83e8ee1e858dca5e2c1e1cffb36d92aa040).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (c1ec86eaa7fbd85b4e11dd5c5b5816d5546260ca).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (dce50d07797e5ed4369a947398963ad807da23c9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (f83e6b62b6c1afa0e93948e950888d1b7ebdbfc0)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (875db3289c0d5bce55398f7c43f22a6019acf4ae).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (64d8fd34de4621adbe3924fd081a8f6a92d55872)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7ce3f2693854a9dfacf1633fbc1ab62fc2b9a5cc).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0ba3b8828a1255591cea7a27953334c213ccd029).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (64d8fd34de4621adbe3924fd081a8f6a92d55872)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (bbf1f53abe6a2fbb5d33d72a5ef0bec27e493ec5)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (25918fa625b53957490426f591c8f7efe477fe0d)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (db12a4c2bbab3230732b747eea73e8c013808a1c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (25918fa625b53957490426f591c8f7efe477fe0d)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (fbd0d7cf2576c1ff2c5adccc870274c407a1d25d).
You can git fetch; git checkout nightly-testing and push a fix.

[Joachim Breitner]

I’m a bit confused by the github display here:
foo.png
This looks as if Ci tested chore: bump to nightly-2025-12-11, but not the latest commit (merge lean-pr-testing-11581), but the Zulip bot above reports that the latter has built.

I would guess that because the merge commits are pushed by github-actions and not the bot, i.e. with the wrong token, Github’s annoying “actions by default don't trigger actions” that the github view is correct, that the zulib bot above is confused by the branch being more advanced than the latest CI, and that we are missing out on automatic ✓ when the adaption branches indeed fix the build.

Also note that the link to the log above shows that indeed 35fa128 was checked.

I’ll push an empty commit to confirm.

But I suggest someone changes the action that merges the commits to use the leanprover-community-mathlib4-bot token.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ee135c102280f715868fadc59c1b69b81bcf3f4a).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Joachim Breitner said:

But I suggest someone changes the action that merges the commits to use the leanprover-community-mathlib4-bot token.

fix(ci): use bot token for discover-lean-pr-testing merges #32722

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9aedaa26604a3d4fa47d81b99674a3bbece38e63).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Uh oh:

error: Mathlib/Data/Prod/PProd.lean:24:4: code generator failed, unsupported occurrence of `Prod.noConfusion`
error: Mathlib/Data/Prod/Basic.lean:28:4: code generator failed, unsupported occurrence of `Prod.noConfusion`

@Henrik Böving? @Joachim Breitner?

[Joachim Breitner]

:raised_hand:

[Kim Morrison]

I guess it is easy to replace these with other proofs.

[Kim Morrison]

I've pushed other proofs and will let you clean up whenever you like. :-)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (517d0ec2ffc055c5391888176a23862ec3e3acd5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (517d0ec2ffc055c5391888176a23862ec3e3acd5).
You can git fetch; git checkout nightly-testing and push a fix.

[Joachim Breitner]

Fix incoming https://github.com/leanprover/lean4/pull/11611. Sorry for that.

[Kim Morrison]

The next failures are some genuine grind failures. We pushed a lot of changes today...

[Kim Morrison]

I got it down to:

module

public import Mathlib.Data.Int.Order.Basic
public import Mathlib.Order.Max
public import Mathlib.Order.Defs.LinearOrder

section Mathlib.Order.Lattice

variable {α : Type}

class Max' (α : Type) where
  max' : α → α → α

instance Max'.toMax [Max' α] : Max α where max a b := Max'.max' a b

instance LinearOrder.toMax' {α : Type} [LinearOrder α] : Max' α where
  max' := max

end Mathlib.Order.Lattice

section Mathlib.Algebra.Order.Group.Unbundled.Abs

variable {α : Type} [Max' α] [Neg α] {a b : α}

@[grind]
def abs (a : α) : α := a ⊔ (-a)

end Mathlib.Algebra.Order.Group.Unbundled.Abs

theorem abs_lt_one_iff {a : Int} : abs a < 1 ↔ a = 0 := by
  grind

(succeeding on nightly-2025-12-10, failing on nightly-2025-12-11) but will stop for the day.

[Kim Morrison]

Reduced to

section Mathlib.Order.Defs.LinearOrder

class LinearOrder (α : Type) extends Max α where

end Mathlib.Order.Defs.LinearOrder
section Mathlib.Data.Int.Order.Basic

instance instLinearOrder : LinearOrder Int where

end Mathlib.Data.Int.Order.Basic
section Mathlib.Order.Lattice

variable {α : Type}

class SemilatticeSup (α : Type) where
  sup : α → α → α

instance SemilatticeSup.toMax [SemilatticeSup α] : Max α where max a b := SemilatticeSup.sup a b

instance LinearOrder.toSemilatticeSup {α : Type} [LinearOrder α] : SemilatticeSup α where
  sup := max

end Mathlib.Order.Lattice

section Mathlib.Algebra.Order.Group.Unbundled.Abs

variable {α : Type} [SemilatticeSup α] [Neg α] {a b : α}

@[grind]
def abs (a : α) : α := max a (-a)

end Mathlib.Algebra.Order.Group.Unbundled.Abs

theorem abs_lt_one_iff {a : Int} : abs a < 1 ↔ a = 0 := by
  grind

and bisected to lean#11589.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0e01e942cf77712b3c312afb0bace9fd6fc540a9).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (862da6f4ec8569f61d65279d000ab78ca31f1ac8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b9d27c2d42295ec61e4be7802b374f87753b7cac).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (3dc6a531c3723314cda883d11f4afdf60bc58572).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Haven't fixed the grind regression yet (we fixed one bug, which turned out to be the wrong one), so this will stay broken until (at least) tomorrow.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a43628d6c273c8ef36a2fbc507a41ddbec24c66d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (af72668a6e4c1fe0541fe2fc40255351d574ca05).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (b62a16dd533561fd54375ccb4570e56df88a2063).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (65965e968a552e0397c473fc397ac985d5fcc611).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (653a7b8342044641e50988e16e6e3c7e52c5af8c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (9b2a09389fcaff1701eed8b6196c9f1402729281).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2cb7523e305189ee487633caf9ce641f4d1a41ce).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (f2e157ed3776e5bead67b2769748376f7d60ec1d).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Hopefully coming good shortly.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (a3185bbe22a659e2146e3dc2eab9012f017f4296).
You can git fetch; git checkout nightly-testing and push a fix.

[Ruben Van de Velde]

inductive WalkingParallelFamily (J : Type w) : Type w
  | zero : WalkingParallelFamily J
  | one : WalkingParallelFamily J
deriving DecidableEq, Inhabited

fails linting with

/- The `unusedArguments` linter reports:
UNUSED ARGUMENTS. -/
#check @instDecidableEqWalkingParallelFamily.decEq /- argument 2 inst✝ : DecidableEq J✝ -/

Not sure how to deal with that

[Joachim Breitner]

See https://github.com/leanprover/lean4/issues/10295. I think these linter errors are allowlisted somewhere in mathlib?

But in this case maybe it was a mistake of mine to use a derived instance, and it’s better to undo
https://github.com/leanprover-community/mathlib4-nightly-testing/commit/f7f11d8000777cacc0ab6c3fdf537dbf5d092bff
and fix the manual instance, and leave a comment that we do not derive DecidableEq becaues it creates instances with too strong assumptions.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (72824e46f06f07252964971a2833a0a7e299a29b).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (e0e4b3764f55ff95f4c6fb9dc2178cb528baafa3).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

Joachim Breitner said:

fix the manual instance, and leave a comment

Done.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (ed6eb20497a07651453c0c122f58489107d3bb59).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (1daec5fd00842e0d97350dd435e75d6da14b68ed)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (95c333015a7ad1963482857ec4c50ec75076705a).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (92fe33c6853e83627488dc3feaaf98c7317f2183).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (376a0299823863afc2717dec66e0bf567acdae92)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (81be7f1d1cbcc4cd2fd714acc75d5a633556a73f).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (376a0299823863afc2717dec66e0bf567acdae92)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (4d6a1d528583db055842b31879e9432fd9abb02e)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (7e787c6da65569af6d091fa09541d317a67b9de7).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (85312f95a468765a9463fd6596eb6db473496cc8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (70f9a3a36a25259d0a21a8f6d307b74ed58505e7).
You can git fetch; git checkout nightly-testing and push a fix.

[Joachim Breitner]

It seems that the cache doesn’t work reliably on nightly-testing? Locally I got a cache before pushing, and the push only affects tests, but then
https://github.com/leanprover-community/mathlib4-nightly-testing/actions/runs/20274023177/job/58217429000
rebuilds all of mathlib. Not sure why.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (6aa41bc08a8e0425cdced8d1a00189842e517f12)

[Bryan Gin-ge Chen]

Joachim Breitner said:

It seems that the cache doesn’t work reliably on nightly-testing? Locally I got a cache before pushing, and the push only affects tests, but then
https://github.com/leanprover-community/mathlib4-nightly-testing/actions/runs/20274023177/job/58217429000
rebuilds all of mathlib. Not sure why.

This is just free association on my part, but is this something that the suggestion at #mathlib4 > Mathlib has moved to the new module system @ 💬 would help with?

[Joachim Breitner]

It happend today again that I fixed nightly-testing of mathlib (incuding fixing the batteries build), and nightly-with-mathlib on lean4 advanced, but because I didn’t fix the batteries test suite, which I don’t see when fixing mathlib, there is no batteries nightly tag, and so my PR was still not tested against mathlib, saying

• :exclamation: Batteries CI can not be attempted yet, as the nightly-testing-2025-12-16 tag does not exist there yet. We will retry when you push more commits. If you rebase your branch onto nightly-with-mathlib, Batteries CI should run now. You can force Mathlib CI using the force-mathlib-ci label. (2025-12-16 10:51:40)

which is not correct (rebasing on nightly-with-mathlib won’ help).

Maybe we should just remove the check whether the batteries tag exists, and run mathlib CI when mathlib is ready?

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (62e8a6b26b8a6cc309e59e1d9e0d6e25ff121764).
You can git fetch; git checkout nightly-testing and push a fix.

[Kim Morrison]

lean#11707 removes the batteries tag check.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (1d00b4d59cb464d6d4bcb213b54f4328b743a32d).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (6aa41bc08a8e0425cdced8d1a00189842e517f12)

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (178f5fddb4143ecaf7f73e9ec8ef61518323f4a1)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (59c8a61b74fdf8a22a2793cd0a2b719d4d1c20c8).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (6099272a2a2c4b64c95bf4a53381bd669657b3c5).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:check: The latest CI for Mathlib's nightly-testing branch has succeeded! (ce5a8af5c1e7ea16ee814574e46e34800897c180)

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (0ffec2a1beb309de71139284a573b1a379a1be94).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (2eb6d9e4a3b89acd9b81c67012c8b4ef27b55d4c).
You can git fetch; git checkout nightly-testing and push a fix.

[github mathlib4 bot]

:cross_mark: The latest CI for Mathlib's nightly-testing branch has failed (34f9d35c1e2d6467d3ecc1f42722a762a912fb67).
You can git fetch; git checkout nightly-testing and push a fix.