Source: elixir-lang
Version: 1.9.1.dfsg-1.1
Severity: serious
Tags: ftbfs
Justification: fails to build from source

Hi,

The latest upload failed to build on a few architectures:

https://buildd.debian.org/status/package.php?p=elixir-lang&suite=sid

I tried building it locally and it worked. I then tried 10 builds in a
row, and 1 of them failed. So I suspect that builds will fail ~ 10% of
the time. Maybe if I tried more times I could have a better estimate, but
this seems relevant enough since it already failed on the buildd.

I have failures like this in past be caused by:

- implicit dependency on the order in which tests are run (does the
  elixir test suite randomizes the execution order?)
- timing issues and race conditions

The full build log for the failed build is attached. Note that the
failure I found does not match the ones that happened on the amd64 and
arm64 buildds. So not only the tests fail randomly, but the failure is
on different tests each time.

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'testing-debug'), (500, 
'unstable'), (500, 'testing'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.2.0-3-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_CRAP
Locale: LANG=pt_BR.UTF-8, LC_CTYPE=pt_BR.UTF-8 (charmap=UTF-8), 
LANGUAGE=pt_BR:pt:en (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Attachment: elixir-lang_amd64-2019-10-19T23:09:13Z.build.gz
Description: application/gzip

Attachment: signature.asc
Description: PGP signature

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