Bug#1047093: qutip: Fails to build source after successful build

[Lucas Nussbaum]

Source: qutip
Version: 4.7.1-2
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 qutip
> dpkg-buildpackage: info: source version 4.7.1-2
> dpkg-buildpackage: info: source distribution unstable
> dpkg-buildpackage: info: source changed by Drew Parsons <dparsons at debian.org>
>  dpkg-source --before-build .
> dpkg-source: info: using options from qutip-4.7.1/debian/source/options: --extend-diff-ignore=^[^/]*[.]egg-info/
>  fakeroot debian/rules clean
> dh clean --with python3,sphinxdoc --buildsystem=pybuild
>    dh_auto_clean -O--buildsystem=pybuild
>    debian/rules execute_after_dh_auto_clean
> make[1]: Entering directory '/<<PKGBUILDDIR>>'
> rm -f qutip/control/*cpp qutip/cy/*.cpp qutip/version.py
> make[1]: Leaving directory '/<<PKGBUILDDIR>>'
>    dh_autoreconf_clean -O--buildsystem=pybuild
>    dh_clean -O--buildsystem=pybuild
>  dpkg-source -b .
> dpkg-source: info: using options from qutip-4.7.1/debian/source/options: --extend-diff-ignore=^[^/]*[.]egg-info/
> dpkg-source: info: using source format '3.0 (quilt)'
> dpkg-source: info: building qutip using existing ./qutip_4.7.1.orig.tar.gz
> dpkg-source: info: using patch list from debian/patches/series
> dpkg-source: error: cannot represent change to doc/gallery/build/build_jupyter.zip: binary file contents changed
> dpkg-source: error: add doc/gallery/build/build_jupyter.zip in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: cannot represent change to doc/gallery/build/build_python.zip: binary file contents changed
> dpkg-source: error: add doc/gallery/build/build_python.zip in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/images/sphx_glr_plot_qip_amplitude_noise_001.png: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/images/sphx_glr_plot_qip_amplitude_noise_001.png in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/images/sphx_glr_plot_qip_amplitude_noise_002.png: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/images/sphx_glr_plot_qip_amplitude_noise_002.png in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/images/sphx_glr_plot_qip_intro_processor_001.png: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/images/sphx_glr_plot_qip_intro_processor_001.png in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/images/sphx_glr_plot_qip_intro_processor_002.png: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/images/sphx_glr_plot_qip_intro_processor_002.png in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/images/sphx_glr_plot_qip_relaxation_001.png: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/images/sphx_glr_plot_qip_relaxation_001.png in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/images/thumb/sphx_glr_plot_qip_amplitude_noise_thumb.png: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/images/thumb/sphx_glr_plot_qip_amplitude_noise_thumb.png in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/images/thumb/sphx_glr_plot_qip_intro_processor_thumb.png: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/images/thumb/sphx_glr_plot_qip_intro_processor_thumb.png in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/images/thumb/sphx_glr_plot_qip_relaxation_thumb.png: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/images/thumb/sphx_glr_plot_qip_relaxation_thumb.png in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: warning: file qutip-4.7.1/doc/gallery/build/qip/plot_qip_amplitude_noise.ipynb has no final newline (either original or modified version)
> dpkg-source: warning: file qutip-4.7.1/doc/gallery/build/qip/plot_qip_amplitude_noise.py.md5 has no final newline (either original or modified version)
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/plot_qip_amplitude_noise_codeobj.pickle: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/plot_qip_amplitude_noise_codeobj.pickle in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: warning: file qutip-4.7.1/doc/gallery/build/qip/plot_qip_intro_processor.ipynb has no final newline (either original or modified version)
> dpkg-source: warning: file qutip-4.7.1/doc/gallery/build/qip/plot_qip_intro_processor.py.md5 has no final newline (either original or modified version)
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/plot_qip_intro_processor_codeobj.pickle: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/plot_qip_intro_processor_codeobj.pickle in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: warning: file qutip-4.7.1/doc/gallery/build/qip/plot_qip_relaxation.ipynb has no final newline (either original or modified version)
> dpkg-source: warning: file qutip-4.7.1/doc/gallery/build/qip/plot_qip_relaxation.py has no final newline (either original or modified version)
> dpkg-source: warning: file qutip-4.7.1/doc/gallery/build/qip/plot_qip_relaxation.py.md5 has no final newline (either original or modified version)
> dpkg-source: error: cannot represent change to doc/gallery/build/qip/plot_qip_relaxation_codeobj.pickle: binary file contents changed
> dpkg-source: error: add doc/gallery/build/qip/plot_qip_relaxation_codeobj.pickle in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: unrepresentable changes to source
> dpkg-buildpackage: error: dpkg-source -b . subprocess returned exit status 1
> 
> 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/qutip_4.7.1-2_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.