[DRE-maint] Bug#1068589: gem2deb: autopkgtest needs update for new version of ruby3.1: "libc6 (>= 2.2.5)", "libruby3.1t64 (>= 3.1.0~preview1)", "ruby | ruby-interpreter\n"] expected to include 'ruby (>= something)'

[Paul Gevers]

Source: gem2deb
Version: 2.2.2
Severity: serious
X-Debbugs-CC: ruby3.1 at packages.debian.org
Tags: sid trixie
User: debian-ci at lists.debian.org
Usertags: needs-update
Control: affects -1 src:ruby3.1

Dear maintainer(s),

With a recent upload of ruby3.1 (in the time_t transition) the 
autopkgtest of gem2deb fails in testing when that autopkgtest is run 
with the binary packages of ruby3.1 from unstable. It passes when run 
with only packages from testing. In tabular form:

                        pass            fail
ruby3.1                from testing    3.1.2-8.3
gem2deb                from testing    2.2.2
all others             from testing    from testing

I copied some of the output at the bottom of this report.

Currently this regression is blocking the migration of ruby3.1 to 
testing [1]. Of course, ruby3.1 shouldn't just break your autopkgtest 
(or even worse, your package), but it seems to me that the change in 
ruby3.1 was intended and your package needs to update to the new situation.

If this is a real problem in your package (and not only in your 
autopkgtest), the right binary package(s) from ruby3.1 should really add 
a versioned Breaks on the unfixed version of (one of your) package(s). 
Note: the Breaks is nice even if the issue is only in the autopkgtest as 
it helps the migration software to figure out the right versions to 
combine in the tests.

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=ruby3.1

https://ci.debian.net/data/autopkgtest/testing/amd64/g/gem2deb/44893387/log.gz

  42s W: Inconsistent version numbers: lib/gem2deb/version.rb says 2.1, 
debian/changelog says 2.2.2
  42s => Unit tests

...

108s     test: multibinary source package should inject dependency on 
ruby (>= something). :	F
108s 
===============================================================================
108s Failure: test: multibinary source package should inject dependency 
on ruby (>= something). (Gem2DebTest):
108s   ["libc6 (>= 2.2.5)", "libruby3.1t64 (>= 3.1.0~preview1)", "ruby | 
ruby-interpreter\n"] expected to include 'ruby (>= something)'.
108s   <false> is not true.
108s 
/tmp/autopkgtest-lxc.f1vq6prr/downtmp/build.NZh/src/test/integration/gem2deb_test.rb:83:in 
`block (3 levels) in <class:Gem2DebTest>'
108s 
/tmp/autopkgtest-lxc.f1vq6prr/downtmp/build.NZh/src/test/integration/gem2deb_test.rb:87:in 
`instance_exec'
108s 
/tmp/autopkgtest-lxc.f1vq6prr/downtmp/build.NZh/src/test/integration/gem2deb_test.rb:87:in 
`block in create_test_from_should_hash'
108s 
===============================================================================
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