Bug#1047461: prove6: Fails to build source after successful build

[Lucas Nussbaum]

Source: prove6
Version: 0.0.12-7
Severity: minor
Tags: trixie sid ftbfs
User: lucas at debian.org
Usertags: ftbfs-sab-20230813 ftbfs-source-after-build
User: debian-qa at lists.debian.org
Usertags: qa-doublebuild

Hi,

This package fails to build a source package after a successful build
(dpkg-buildpackage ; dpkg-buildpackage -S).

This is probably a clear violation of Debian Policy section 4.9 (clean target),
but this is filed as severity:minor for now, because a discussion on
debian-devel showed that we might want to revisit the requirement of a working
'clean' target.

More information about this class of issues, included common problems and
solutions, is available at
https://wiki.debian.org/qa.debian.org/FTBFS/SourceAfterBuild

Relevant part of the build log:
> cd /<<PKGBUILDDIR>> && runuser -u user42 -- dpkg-buildpackage --sanitize-env -us -uc -rfakeroot -S
> --------------------------------------------------------------------------------------------------------------------
> 
> dpkg-buildpackage: info: source package prove6
> dpkg-buildpackage: info: source version 0.0.12-7
> dpkg-buildpackage: info: source distribution unstable
> dpkg-buildpackage: info: source changed by Dominique Dumont <dod at debian.org>
>  dpkg-source --before-build .
>  debian/rules clean
> dh clean
>    dh_clean
>  dpkg-source -b .
> dpkg-source: info: using source format '3.0 (quilt)'
> dpkg-source: info: building prove6 using existing ./prove6_0.0.12.orig.tar.gz
> dpkg-source: info: using patch list from debian/patches/series
> dpkg-source: warning: newly created empty file 'lib/.precomp/AF50A328AB74BE48ACBF2B65E07E64E53E5A7E10/60/60CBD62BA814F88B5840C355CCC73B21A03D70B9.lock' will not be represented in diff
> dpkg-source: warning: file prove6-0.0.12/lib/.precomp/AF50A328AB74BE48ACBF2B65E07E64E53E5A7E10/60/60CBD62BA814F88B5840C355CCC73B21A03D70B9.repo-id has no final newline (either original or modified version)
> dpkg-source: warning: file prove6-0.0.12/lib/.precomp/CACHEDIR.TAG has no final newline (either original or modified version)
> dpkg-source: info: local changes detected, the modified files are:
>  prove6-0.0.12/lib/.precomp/AF50A328AB74BE48ACBF2B65E07E64E53E5A7E10/60/60CBD62BA814F88B5840C355CCC73B21A03D70B9.repo-id
>  prove6-0.0.12/lib/.precomp/CACHEDIR.TAG
> dpkg-source: error: aborting due to unexpected upstream changes, see /tmp/prove6_0.0.12-7.diff.ICdVOW
> dpkg-source: info: Hint: make sure the version in debian/changelog matches the unpacked source tree
> dpkg-source: info: you can integrate the local changes with dpkg-source --commit
> dpkg-buildpackage: error: dpkg-source -b . subprocess returned exit status 2
> 
> E: Command 'cd /<<PKGBUILDDIR>> && runuser -u user42 -- dpkg-buildpackage --sanitize-env -us -uc -rfakeroot -S' failed to run.


The full build log is available from:
http://qa-logs.debian.net/2023/08/13/prove6_0.0.12-7_unstable.log

If you reassign this bug to another package, please mark it as 'affects'-ing
this package. See https://www.debian.org/Bugs/server-control#affects

If you fail to reproduce this, please provide a build log and diff it with mine
so that we can identify if something relevant changed in the meantime.