[Python-modules-team] Bug#808513: python-django-treebeard: FTBFS: raise AppRegistryNotReady("Apps aren't loaded yet.")

[Chris West (Faux)]

Source: python-django-treebeard
Version: 3.0+dfsg-1
Severity: serious
Justification: fails to build from source
Tags: sid stretch
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs
X-Debbugs-CC: reproducible-builds at lists.alioth.debian.org

Dear Maintainer,

The package fails to build:

Running Sphinx v1.3.3
making output directory...
loading pickled environment... not yet created
loading intersphinx inventory from http://docs.python.org/3/objects.inv...
WARNING: intersphinx inventory 'http://docs.python.org/3/objects.inv' not fetchable due to <class 'urllib2.URLError'>: <urlopen error [Errno -3] Temporary failure in name resolution>
loading intersphinx inventory from https://docs.djangoproject.com/en/1.6/_objects/...
WARNING: intersphinx inventory 'https://docs.djangoproject.com/en/1.6/_objects/' not fetchable due to <class 'urllib2.URLError'>: <urlopen error [Errno -3] Temporary failure in name resolution>
building [mo]: targets for 0 po files that are out of date
building [html]: targets for 13 source files that are out of date
updating environment: 13 added, 0 changed, 0 removed
reading sources... [  7%] admin
reading sources... [ 15%] al_tree

Exception occurred:
  File "/usr/lib/python2.7/dist-packages/django/apps/registry.py", line 124, in check_apps_ready
    raise AppRegistryNotReady("Apps aren't loaded yet.")
AppRegistryNotReady: Apps aren't loaded yet.
The full traceback has been saved in /tmp/sphinx-err-XKYqh4.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!
Makefile:35: recipe for target 'html' failed
make[2]: *** [html] Error 1
make[2]: Leaving directory '/python-django-treebeard-3.0+dfsg/docs'
debian/rules:13: recipe for target 'override_dh_auto_build' failed
make[1]: *** [override_dh_auto_build] Error 2

Full build log:
https://reproducible.debian.net/rb-pkg/unstable/amd64/python-django-treebeard.html

-- System Information:
Debian Release: stretch/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)