#1135497 buildbot: FTBFS: sphinx.errors.SphinxParallelError: AssertionError

Package:
src:buildbot
Source:
src:buildbot
Submitter:
Santiago Vila
Date:
2026-05-17 16:07:02 UTC
Severity:
normal
Tags:
#1135497#5
Date:
2026-05-01 23:29:09 UTC
From:
To:
Dear maintainer:

During a rebuild of all packages in unstable, this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202605/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:buildbot, so that this is still
visible in the BTS web page for this package.

Thanks.
--------------------------------------------------------------------------------
[...]
 debian/rules clean
dh clean --with python3,bash-completion,sphinxdoc
   debian/rules override_dh_auto_clean
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dh_auto_clean --buildsystem=pybuild --sourcedirectory=master \
	--package=buildbot
	pybuild --clean -i python{version} -p 3.13 --dir master --parallel=2
I: pybuild base:385: python3.13 setup.py clean
/usr/lib/python3/dist-packages/setuptools/_distutils/dist.py:289: UserWarning: Unknown distribution option: 'tests_require'
  warnings.warn(msg)
/usr/lib/python3/dist-packages/setuptools/dist.py:759: SetuptoolsDeprecationWarning: License classifiers are deprecated.
!!

        ********************************************************************************
        Please consider removing the following classifiers in favor of a SPDX license expression:

[... snipped ...]

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copying buildbot/test/integration/test_integration_secrets_with_vault_hvac.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/integration
copying buildbot/test/integration/test_virtual_builder.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/integration
copying buildbot/test/integration/test_master.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/integration
copying buildbot/test/integration/test_stop_trigger.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/integration
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copying buildbot/test/unit/test_clients_tryclient.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/unit
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copying buildbot/test/unit/test_clients_usersclient.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/unit
copying buildbot/test/unit/test_wamp_connector.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/unit
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copying buildbot/test/unit/test_mq_wamp.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/unit
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copying buildbot/test/unit/test_steps_mixin.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/unit
copying buildbot/test/unit/test_clients_sendchange.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/unit
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copying buildbot/test/unit/test_util_queue.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/test/unit
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copying buildbot/db/migrations/alembic.ini -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/db/migrations
copying buildbot/db/migrations/README -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/db/migrations
copying buildbot/scripts/sample.cfg -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/scripts
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copying buildbot/spec/api.raml -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/spec
creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/spec/types
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copying buildbot/spec/types/log.raml -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot/spec/types
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warning: build_py: byte-compiling is disabled, skipping.

dh_auto_build --buildsystem=pybuild --sourcedirectory=worker \
	--package=buildbot-worker
	pybuild --build -i python{version} -p 3.13 --dir worker --parallel=2
I: pybuild base:385: /usr/bin/python3 setup.py build
/usr/lib/python3/dist-packages/setuptools/_distutils/dist.py:289: UserWarning: Unknown distribution option: 'tests_require'
  warnings.warn(msg)
/usr/lib/python3/dist-packages/setuptools/dist.py:759: SetuptoolsDeprecationWarning: License classifiers are deprecated.
!!

        ********************************************************************************
        Please consider removing the following classifiers in favor of a SPDX license expression:

        License :: OSI Approved :: GNU General Public License v2 (GPLv2)

        See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details.
        ********************************************************************************

!!
  self._finalize_license_expression()
running build
running build_py
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copying buildbot_worker/test/fake/reactor.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/fake
creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_bot_Worker.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_bot.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_commands_registry.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_scripts_stop.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_commands_shell.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_commands_utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_scripts_runner.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/runprocess-scripts.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_commands_fs.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_scripts_create_worker.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_commands_transfer.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_commands_base.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_runprocess.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_scripts_restart.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_util.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_scripts_start.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_util_deferwaiter.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_scripts_base.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
copying buildbot_worker/test/unit/test_msgpack.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/unit
creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/util
copying buildbot_worker/test/util/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/util
copying buildbot_worker/test/util/command.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/util
copying buildbot_worker/test/util/test_lineboundaries.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/util
copying buildbot_worker/test/util/site.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/util
copying buildbot_worker/test/util/test_buffer_manager.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/util
copying buildbot_worker/test/util/compat.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/util
copying buildbot_worker/test/util/misc.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/util
copying buildbot_worker/test/util/sourcecommand.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build/buildbot_worker/test/util
warning: build_py: byte-compiling is disabled, skipping.

/usr/bin/make -C master/docs html JOBS=2
make[2]: Entering directory '/<<PKGBUILDDIR>>/master/docs'
LC_ALL="C.UTF-8" LC_CTYPE="C.UTF-8" sphinx-build -b html -d _build/doctrees  -q -W -j 2 . _build/html
enchant module import failed:
No module named 'enchant'
Spell checking disabled.

Sphinx parallel build error!

Versions
========

* Platform:         linux; (Linux-6.12.74+deb13+1-cloud-amd64-x86_64-with-glibc2.42)
* Python version:   3.13.12 (CPython)
* Sphinx version:   9.1.0
* Docutils version: 0.22.4
* Jinja2 version:   3.1.6
* Pygments version: 2.19.2

Last Messages
=============

    loading translations [en]...
    done
    Converting `source_suffix = '.rst'` to `source_suffix = {'.rst': 'restructuredtext'}`.
    building [mo]: targets for 0 po files that are out of date
    writing output...

    building [html]: targets for 285 source files that are out of date
    updating environment:
    [new config]
    285 added, 0 changed, 0 removed

Loaded Extensions
=================

* sphinx.ext.mathjax (9.1.0)
* alabaster (1.0.0)
* sphinx.ext.autodoc (9.1.0)
* sphinx.ext.todo (9.1.0)
* sphinx.ext.extlinks (9.1.0)
* bbdocs.ext (unknown version)
* bbdocs.api_index (unknown version)
* sphinx_jinja (unknown version)
* sphinxcontrib.jquery (4.1)
* sphinx_rtd_theme (unknown version)

Traceback
=========

      File "/usr/lib/python3/dist-packages/sphinx/util/parallel.py", line 137, in _join_one
        raise SphinxParallelError(*result)
    sphinx.errors.SphinxParallelError: AssertionError


The full traceback has been saved in:
/tmp/sphinx-err-q29jgs1v.log

To report this error to the developers, please open an issue at <https://github.com/sphinx-doc/sphinx/issues/>. Thanks!
Please also report this if it was a user error, so that a better error message can be provided next time.
make[2]: *** [Makefile:58: html] Error 2
make[2]: Leaving directory '/<<PKGBUILDDIR>>/master/docs'
make[1]: *** [debian/rules:22: override_dh_auto_build] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:76: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2
--------------------------------------------------------------------------------
#1135497#10
Date:
2026-05-17 15:51:26 UTC
From:
To:
Hello,

Bug #1135497 in buildbot reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/python-team/packages/buildbot/-/commit/38b21fea05ab2bc0546b6e9ad0b1c92522d498c5
------------------------------------------------------------------------
Fix documentation build failure with Sphinx 9.1.0

Closes: #1135497
------------------------------------------------------------------------

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1135497
#1135497#17
Date:
2026-05-17 16:05:08 UTC
From:
To:
We believe that the bug you reported is fixed in the latest version of
buildbot, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1135497@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Colin Watson <cjwatson@debian.org> (supplier of updated buildbot package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sun, 17 May 2026 16:51:01 +0100
Source: buildbot
Architecture: source
Version: 4.3.0-2
Distribution: unstable
Urgency: medium
Maintainer: Debian Python Team <team+python@tracker.debian.org>
Changed-By: Colin Watson <cjwatson@debian.org>
Closes: 1083325 1135497
Changes:
 buildbot (4.3.0-2) unstable; urgency=medium
 .
   * Team upload.
   * debian/copyright: Remove old FSF postal address.
   * Remove run-time dependency on setuptools (closes: #1083325).
   * Fix documentation build failure with Sphinx 9.1.0 (closes: #1135497).
Checksums-Sha1:
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Files:
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 74b26f961288f3dd6b43954532b4cd19 29088 devel optional buildbot_4.3.0-2.debian.tar.xz
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Git-Tag-Info: tag=be2b78e0c263b958498890102932e008fcf25ef3 fp=ac0a4ff12611b6fccf01c111393587d97d86500b
Git-Tag-Tagger: Colin Watson <cjwatson@debian.org>
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