Bug#1027596: skimage: FTBFS: build-dependency not installable: python-matplotlib-doc

[Lucas Nussbaum]

Source: skimage
Version: 0.19.3-3
Severity: serious
Justification: FTBFS
Tags: bookworm sid ftbfs
User: lucas at debian.org
Usertags: ftbfs-20230101 ftbfs-bookworm

Hi,

During a rebuild of all packages in sid, your package failed to build
on amd64.


Relevant part (hopefully):
> +------------------------------------------------------------------------------+
> | Install package build dependencies                                           |
> +------------------------------------------------------------------------------+
> 
> 
> Setup apt archive
> -----------------
> 
> Merged Build-Depends: cython3 (>= 0.29.13), debhelper-compat (= 13), dh-python, python3-all-dev, python3-cloudpickle, python3-dask, python3-imageio, python3-matplotlib, python3-networkx, python3-numpy, python3-numpydoc, python3-pandas, python3-pil, python3-plotly (>= 4.10.0), python3-pooch, python3-pytest, python3-pythran, python3-pywt (>= 1.1.1), python3-recommonmark, python3-scipy, python3-seaborn, python3-setuptools, python3-six, python3-tifffile, python3-tk, build-essential, fakeroot, python-matplotlib-doc, python3-doc, python3-sklearn, python3-sphinx, python3-sphinx-copybutton, python3-sphinx-gallery
> Filtered Build-Depends: cython3 (>= 0.29.13), debhelper-compat (= 13), dh-python, python3-all-dev, python3-cloudpickle, python3-dask, python3-imageio, python3-matplotlib, python3-networkx, python3-numpy, python3-numpydoc, python3-pandas, python3-pil, python3-plotly (>= 4.10.0), python3-pooch, python3-pytest, python3-pythran, python3-pywt (>= 1.1.1), python3-recommonmark, python3-scipy, python3-seaborn, python3-setuptools, python3-six, python3-tifffile, python3-tk, build-essential, fakeroot, python-matplotlib-doc, python3-doc, python3-sklearn, python3-sphinx, python3-sphinx-copybutton, python3-sphinx-gallery
> dpkg-deb: building package 'sbuild-build-depends-main-dummy' in '/<<RESOLVERDIR>>/apt_archive/sbuild-build-depends-main-dummy.deb'.
> Ign:1 copy:/<<RESOLVERDIR>>/apt_archive ./ InRelease
> Get:2 copy:/<<RESOLVERDIR>>/apt_archive ./ Release [963 B]
> Ign:3 copy:/<<RESOLVERDIR>>/apt_archive ./ Release.gpg
> Get:4 copy:/<<RESOLVERDIR>>/apt_archive ./ Sources [569 B]
> Get:5 copy:/<<RESOLVERDIR>>/apt_archive ./ Packages [649 B]
> Fetched 2181 B in 0s (197 kB/s)
> Reading package lists...
> Reading package lists...
> 
> Install main build dependencies (apt-based resolver)
> ----------------------------------------------------
> 
> Installing build dependencies
> Reading package lists...
> Building dependency tree...
> Some packages could not be installed. This may mean that you have
> requested an impossible situation or if you are using the unstable
> distribution that some required packages have not yet been created
> or been moved out of Incoming.
> The following information may help to resolve the situation:
> 
> The following packages have unmet dependencies:
>  sbuild-build-depends-main-dummy : Depends: python-matplotlib-doc but it is not installable
> E: Unable to correct problems, you have held broken packages.
> apt-get failed.


The full build log is available from:
http://qa-logs.debian.net/2023/01/01/skimage_0.19.3-3_unstable.log

All bugs filed during this archive rebuild are listed at:
https://bugs.debian.org/cgi-bin/pkgreport.cgi?tag=ftbfs-20230101;users=lucas@debian.org
or:
https://udd.debian.org/bugs/?release=na&merged=ign&fnewerval=7&flastmodval=7&fusertag=only&fusertagtag=ftbfs-20230101&fusertaguser=lucas@debian.org&allbugs=1&cseverity=1&ctags=1&caffected=1#results

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

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.