[R-pkg-team] Bug#1049523: r-cran-fastcluster: Fails to build binary packages again after successful build

[Lucas Nussbaum]

Source: r-cran-fastcluster
Version: 1.2.3-2
Severity: minor
Tags: trixie sid ftbfs
User: lucas at debian.org
Usertags: ftbfs-binary-20230816 ftbfs-binary-after-build
User: debian-qa at lists.debian.org
Usertags: qa-doublebuild

Hi,

This package fails to do build a binary-only build (not source) after a
successful build (dpkg-buildpackage ; dpkg-buildpackage -b).

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/DoubleBuild

Relevant part of the build log:
> cd /<<PKGBUILDDIR>> && runuser -u user42 -- dpkg-buildpackage --sanitize-env -us -uc -rfakeroot -b
> -------------------------------------------------------------------------------------------------------------------------------------------
> 
> dpkg-buildpackage: info: source package r-cran-fastcluster
> dpkg-buildpackage: info: source version 1.2.3-2
> dpkg-buildpackage: info: source distribution unstable
> dpkg-buildpackage: info: source changed by Andreas Tille <tille at debian.org>
>  dpkg-source --before-build .
> dpkg-buildpackage: info: host architecture amd64
>  debian/rules clean
> dh clean --with python3 --buildsystem=pybuild --sourcedirectory=src/python
>    debian/rules override_dh_auto_clean
> make[1]: Entering directory '/<<PKGBUILDDIR>>'
> dh_auto_clean || true
> I: pybuild base:291: python3.11 setup.py clean 
> Fastcluster version: 1.2.3
> Python version: 3.11.4 (main, Jun  7 2023, 10:13:09) [GCC 12.2.0]
> running clean
> removing '/<<PKGBUILDDIR>>/.pybuild/cpython3_3.11_fastcluster/build' (and everything under it)
> 'build/bdist.linux-x86_64' does not exist -- can't clean it
> 'build/scripts-3.11' does not exist -- can't clean it
> # Parts of the following are taken from the CDBS file for F.
> if test -d src; then				\
> 	find src -regex ".*\.o" |               \
>         xargs --no-run-if-empty -r rm;          \
> 	find src src -regex ".*\.so" |          \
> 	xargs --no-run-if-empty -r rm;		\
> fi
> rm: cannot remove 'src/python/_fastcluster.cpython-311-x86_64-linux-gnu.so': No such file or directory
> make[1]: *** [debian/rules:19: override_dh_auto_clean] Error 123
> make[1]: Leaving directory '/<<PKGBUILDDIR>>'
> make: *** [debian/rules:14: clean] Error 2
> dpkg-buildpackage: error: debian/rules clean subprocess returned exit status 2
> 
> E: Command 'cd /<<PKGBUILDDIR>> && runuser -u user42 -- dpkg-buildpackage --sanitize-env -us -uc -rfakeroot -b' failed to run.


The full build log is available from:
http://qa-logs.debian.net/2023/08/16/r-cran-fastcluster_1.2.3-2_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.