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Bug#1023712: why3 breaks frama-c (autopkgtest): missing versioned Breaks?



Source: why3
Control: found -1 why3/1.5.1-1
Severity: serious
Tags: sid bookworm
User: debian-ci@lists.debian.org
Usertags: breaks

Dear maintainer(s),

With a recent upload of why3 the autopkgtest of frama-c fails in testing when that autopkgtest is run with the binary packages of why3 from unstable. It passes when run with only packages from testing. In tabular form:

                       pass            fail
why3                   from testing    1.5.1-1
frama-c                from testing    20220511-manganese-1.3
all others             from testing    from testing

I copied some of the output at the bottom of this report. The message seems serious enough (to my eyes) that you'd want to prevent this on partial upgrades and during dist-upgrades. Does why3 (version in unstable) really break the version of frama-c in testing? Then adding a *versioned* Breaks might be a good idea. Maybe the failure isn't as bad as it looks, then please just close this bug report (but be warned, why3 might migrate then, while the fixed frama-c seems stuck).

Currently this regression is blocking the migration of why3 to testing [1]. Due to the nature of this issue, I filed this bug report against both packages. Can you please investigate the situation and reassign the bug to the right package?

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=why3

https://ci.debian.net/data/autopkgtest/testing/amd64/f/frama-c/28047266/log.gz

[kernel] User Error: cannot load plug-in 'frama-c-wp': cannot load module
  Details: implementation mismatch on Why3
[kernel] User Error: Deferred error message was emitted during execution. See above messages for more information.
[kernel] Frama-C aborted: invalid user input.
autopkgtest [20:18:19]: test eva

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