0.10.0: documentation build fails

[kloczek]

Looks like with 0.10.0 is not possible to render documentation

+ /usr/bin/sphinx-build -n -T -b man docs/source build/sphinx/man
Running Sphinx v7.0.1
WARNING: Invalid configuration value found: 'language = None'. Update your configuration to a valid language code. Falling back to 'en' (English).
making output directory... done
WARNING: html_static_path entry '_static' does not exist
WARNING: The pre-Sphinx 1.0 'intersphinx_mapping' format is deprecated and will be removed in Sphinx 8. Update to the current format as described in the documentation. Hint: "intersphinx_mapping = {'<name>': ('https://docs.python.org/', None)}".https://www.sphinx-doc.org/en/master/usage/extensions/intersphinx.html#confval-intersphinx_mapping
loading intersphinx inventory from https://docs.python.org/objects.inv...
intersphinx inventory has moved: https://docs.python.org/objects.inv -> https://docs.python.org/3/objects.inv
building [mo]: targets for 0 po files that are out of date
writing output...
building [man]: all manpages
updating environment: [new config] 1 added, 0 changed, 0 removed
reading sources... [100%] index

looking for now-outdated files... none found
pickling environment... done
checking consistency... done
writing... python-nbval.3 { } /home/tkloczko/rpmbuild/BUILD/nbval-0.10.0/docs/source/index.ipynb:: WARNING: unknown node type: <CodeAreaNode: <literal_block...>>
failed

Traceback (most recent call last):
  File "/usr/lib/python3.8/site-packages/sphinx/cmd/build.py", line 285, in build_main
    app.build(args.force_all, args.filenames)
  File "/usr/lib/python3.8/site-packages/sphinx/application.py", line 351, in build
    self.builder.build_update()
  File "/usr/lib/python3.8/site-packages/sphinx/builders/__init__.py", line 291, in build_update
    self.build(['__all__'], to_build)
  File "/usr/lib/python3.8/site-packages/sphinx/builders/__init__.py", line 361, in build
    self.write(docnames, list(updated_docnames), method)
  File "/usr/lib/python3.8/site-packages/sphinx/util/display.py", line 85, in wrapper
    return f(*args, **kwargs)
  File "/usr/lib/python3.8/site-packages/sphinx/builders/manpage.py", line 101, in write
    docwriter.write(largetree, destination)
  File "/usr/lib/python3.8/site-packages/docutils/writers/__init__.py", line 80, in write
    self.translate()
  File "/usr/lib/python3.8/site-packages/sphinx/writers/manpage.py", line 33, in translate
    self.document.walkabout(visitor)
  File "/usr/lib/python3.8/site-packages/docutils/nodes.py", line 186, in walkabout
    if child.walkabout(visitor):
  File "/usr/lib/python3.8/site-packages/docutils/nodes.py", line 186, in walkabout
    if child.walkabout(visitor):
  File "/usr/lib/python3.8/site-packages/docutils/nodes.py", line 186, in walkabout
    if child.walkabout(visitor):
  [Previous line repeated 1 more time]
  File "/usr/lib/python3.8/site-packages/docutils/nodes.py", line 199, in walkabout
    visitor.dispatch_departure(self)
  File "/usr/lib/python3.8/site-packages/sphinx/util/docutils.py", line 592, in dispatch_departure
    super().dispatch_departure(node)
  File "/usr/lib/python3.8/site-packages/docutils/nodes.py", line 2019, in dispatch_departure
    return method(node)
  File "/usr/lib/python3.8/site-packages/docutils/nodes.py", line 2041, in unknown_departure
    raise NotImplementedError(
NotImplementedError: <class 'sphinx.writers.manpage.ManualPageTranslator'> departing unknown node type: CodeAreaNode

Exception occurred:
  File "/usr/lib/python3.8/site-packages/docutils/nodes.py", line 2041, in unknown_departure
    raise NotImplementedError(
NotImplementedError: <class 'sphinx.writers.manpage.ManualPageTranslator'> departing unknown node type: CodeAreaNode
The full traceback has been saved in /tmp/sphinx-err-3zjuqdd2.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!