[Debian-med-packaging] Bug#837276: python-mne: FTBFS: build-dependency not installable: mayavi2 (>= 4.4.3-1)

[Sascha Steinbiss]

Hi,

I am unable to reproduce this FTBFS in a current sid amd64 cowbuilder chroot.
See attached build log. I can see that the latest mayavi2 NMU (4.4.3-2.2) failed to build for amd64, but I was sure able to get 
4.4.3-2.1. 
I’m not sure I understand if this might be the reason for this failure you are reporting?

Thanks
Sascha

On Sat, 10 Sep 2016 09:37:14 +0200 Lucas Nussbaum <lucas at debian.org> wrote:
> Source: python-mne
> Version: 0.12+dfsg-2
> Severity: serious
> Tags: stretch sid
> User: debian-qa at lists.debian.org
> Usertags: qa-ftbfs-20160910 qa-ftbfs
> Justification: FTBFS on amd64
> 
> 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: debhelper (>= 9), python-all, python-numpy, python-scipy, python-sphinx (>= 1.0~), python-nose, python-setuptools, python-matplotlib, python-joblib (>= 0.4.5), python-sklearn, mayavi2 (>= 4.4.3-1) | python-vtk6 | python-vtk, xvfb, xauth, libgl1-mesa-dri, python-coverage, libjs-jquery, libjs-jquery-ui, yui-compressor
> > Filtered Build-Depends: debhelper (>= 9), python-all, python-numpy, python-scipy, python-sphinx (>= 1.0~), python-nose, python-setuptools, python-matplotlib, python-joblib (>= 0.4.5), python-sklearn, mayavi2 (>= 4.4.3-1), xvfb, xauth, libgl1-mesa-dri, python-coverage, libjs-jquery, libjs-jquery-ui, yui-compressor
> > dpkg-deb: building package 'sbuild-build-depends-python-mne-dummy' in '/<<BUILDDIR>>/resolver-6Al9S2/apt_archive/sbuild-build-depends-python-mne-dummy.deb'.
> > dpkg-scanpackages: warning: Packages in archive but missing from override file:
> > dpkg-scanpackages: warning:   sbuild-build-depends-python-mne-dummy
> > dpkg-scanpackages: info: Wrote 1 entries to output Packages file.
> > Ign:1 copy:/<<BUILDDIR>>/resolver-6Al9S2/apt_archive ./ InRelease
> > Get:2 copy:/<<BUILDDIR>>/resolver-6Al9S2/apt_archive ./ Release [957 B]
> > Ign:3 copy:/<<BUILDDIR>>/resolver-6Al9S2/apt_archive ./ Release.gpg
> > Get:4 copy:/<<BUILDDIR>>/resolver-6Al9S2/apt_archive ./ Sources [486 B]
> > Get:5 copy:/<<BUILDDIR>>/resolver-6Al9S2/apt_archive ./ Packages [564 B]
> > Fetched 2007 B in 0s (0 B/s)
> > Reading package lists...
> > W: No sandbox user '_apt' on the system, can not drop privileges
> > Reading package lists...
> > 
> > Install python-mne build dependencies (apt-based resolver)
> > ----------------------------------------------------------
> > 
> > Installing build dependencies
> > Reading package lists...
> > Building dependency tree...
> > Reading state information...
> > 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-python-mne-dummy : Depends: mayavi2 (>= 4.4.3-1) but it is not going to be installed
> > E: Unable to correct problems, you have held broken packages.
> > apt-get failed.
> 
> The full build log is available from:
>    http://aws-logs.debian.net/2016/09/10/python-mne_0.12+dfsg-2_unstable.log
> (That DNS record was just updated. Use
> http://ec2-52-58-237-241.eu-central-1.compute.amazonaws.com if it