[DRE-maint] Bug#1006022: puma: flaky autopkgtest

[Paul Gevers]

Source: puma
Version: 5.5.2-2
Severity: serious
X-Debbugs-CC: debian-ci at lists.debian.org
User: debian-ci at lists.debian.org
Usertags: flaky

Dear maintainer(s),

I looked at the results of the autopkgtest of you package because it was 
showing up as a regression for the upload of glibc. I noticed that the 
test regularly fails on all architectures, particularly since version 
5.5.2-2

Because the unstable-to-testing migration software now blocks on
regressions in testing, flaky tests, i.e. tests that flip between
passing and failing without changes to the list of installed packages,
are causing people unrelated to your package to spend time on these
tests.

Don't hesitate to reach out if you need help and some more information
from our infrastructure.

Paul

https://ci.debian.net/data/autopkgtest/testing/armhf/p/puma/19335931/log.gz

   1) Failure:
TestIntegrationSingle#test_hot_restart_does_not_drop_connections_threads 
[/tmp/autopkgtest-lxc.4tg64laj/downtmp/build.gqr/src/test/helpers/integration.rb:313]:
       0 unexpected_response
       1 refused
       0 read timeout
       0 reset
     999 success
     893 success after restart
       2 restart count
Expected no refused connections.
Expected: 0
   Actual: 1

412 runs, 1423 assertions, 1 failures, 0 errors, 6 skips
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