CI: Flaky test on macos debug runs

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
32/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
cpp, macos
Domain
ci-cd, testing

Research direction

Start with the leanruntest_all tests and compare the failure reports linked from pull requests 617 and 622 for macOS debug runs. Determine which test is flaky and reproduce the intermittent failure; done means the cause is identified and the test no longer fails spuriously in that CI configuration.

Written by the indexing model from the issue text.

Description

One of the tests under leanruntest_all seems to be failing sometimes on macos debug:

https://github.com/leanprover-community/lean/pull/617#issuecomment-918406979

https://github.com/leanprover-community/lean/pull/622#issuecomment-925204586

Dominant language
C++
Stars
434
Forks
79
No merged PRs in 30d

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