[Pkg-rust-maintainers] Bug#995421: rust-bumpalo: autopkgtest armhf regression: oom_instead_of_bump_pointer_overflow

[Paul Gevers]

Source: rust-bumpalo
Version: 3.7.0-2
X-Debbugs-CC: debian-ci at lists.debian.org
Severity: serious
User: debian-ci at lists.debian.org
Usertags: regression

Dear maintainer(s),

With a recent upload of rust-bumpalo the autopkgtest of rust-bumpalo
fails in testing when that autopkgtest is run with the binary packages
of rust-bumpalo from unstable. It passes when run with only packages
from testing. In tabular form:

                       pass            fail
rust-bumpalo           from testing    3.7.0-2
all others             from testing    from testing

I copied some of the output at the bottom of this report. Looking at the
name of the test *and* the resources of our armhf worker (250GB RAM) I
wonder if the test is assuming stuff that's not true.

Currently this regression is blocking the migration to testing [1]. Can
you please investigate the situation and fix it?

More information about this bug and the reason for filing it can be found on
https://wiki.debian.org/ContinuousIntegration/RegressionEmailInformation

Paul

[1] https://qa.debian.org/excuses.php?package=rust-bumpalo

https://ci.debian.net/data/autopkgtest/testing/amd64/r/rust-bumpalo/15635904/log.gz

running 10 tests
test alloc_slice_clone ... ok
test alloc_slice_copy ... ok
test alloc_with_strong_alignment ... ok
test force_new_chunk_fits_well ... ok
test oom_instead_of_bump_pointer_overflow ... FAILED
test small_size_and_large_align ... ok
test test_alignment ... ok
test test_reset ... ok
test can_iterate_over_allocated_things ... ok
test with_capacity_test ... ok

failures:

failures:
    oom_instead_of_bump_pointer_overflow

test result: FAILED. 9 passed; 1 failed; 0 ignored; 0 measured; 0
filtered out; finished in 0.09s

error: test failed, to rerun pass '--test tests'
autopkgtest [16:03:45]: test librust-bumpalo-dev:: -----------------------]

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