[Pkg-rust-maintainers] Bug#1049678: rust-csv: Fails to build binary packages again after successful build

[Lucas Nussbaum]

Source: rust-csv
Version: 1.2.2-1
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 rust-csv
> dpkg-buildpackage: info: source version 1.2.2-1
> dpkg-buildpackage: info: source distribution unstable
> dpkg-buildpackage: info: source changed by Peter Michael Green <plugwash at debian.org>
>  dpkg-source --before-build .
> dpkg-buildpackage: info: host architecture amd64
>  debian/rules clean
> dh clean --buildsystem cargo
>    debian/rules execute_after_dh_testdir
> make[1]: Entering directory '/<<PKGBUILDDIR>>'
> find . -exec touch {} +
> touch: setting times of './debian/cargo_registry/serde-1.0.171': Permission denied
> touch: setting times of './debian/cargo_registry/libc-0.2.146': Permission denied
> touch: setting times of './debian/cargo_registry/ryu-1.0.2': Permission denied
> touch: setting times of './debian/cargo_registry/itoa-1.0.1': Permission denied
> touch: setting times of './debian/cargo_registry/csv-core-0.1.10': Permission denied
> touch: setting times of './debian/cargo_registry/rustc-std-workspace-core-1.0.0': Permission denied
> touch: setting times of './debian/cargo_registry/compiler_builtins-0.1.70': Permission denied
> touch: setting times of './debian/cargo_registry/memchr-2.5.0': Permission denied
> make[1]: *** [debian/rules:6: execute_after_dh_testdir] Error 1
> make[1]: Leaving directory '/<<PKGBUILDDIR>>'
> make: *** [debian/rules:3: 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/rust-csv_1.2.2-1_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.