TypeError seen on gate-neutron-lib-api-ref

[YAMAMOTO Takashi]

eg.
http://logs.openstack.org/74/407974/4/check/gate-neutron-lib-api-ref/fd1da17/console.html.gz

2016-12-10 02:56:27.259327 | Running Sphinx v1.3.6
2016-12-10 02:56:27.259419 | making output directory...
2016-12-10 02:56:27.313299 | loading pickled environment... not yet created
2016-12-10 02:56:27.567368 | building [mo]: targets for 0 po files that are out of date
2016-12-10 02:56:27.568804 | building [html]: targets for 2 source files that are out of date
2016-12-10 02:56:27.576707 | updating environment: 2 added, 0 changed, 0 removed
2016-12-10 02:56:27.576844 | reading sources... [ 50%] index
2016-12-10 02:56:27.627771 | reading sources... [100%] v2/index
2016-12-10 02:56:44.174666 |
2016-12-10 02:56:44.175238 | looking for now-outdated files... none found
2016-12-10 02:56:44.450451 | pickling environment... done
2016-12-10 02:56:44.450539 | checking consistency... done
2016-12-10 02:56:44.453109 | preparing documents... done
2016-12-10 02:56:44.453170 | writing output... [ 50%] index
2016-12-10 02:56:44.602761 | writing output... [100%] v2/index
2016-12-10 02:56:46.870245 |
2016-12-10 02:56:46.870340 | Exception occurred:
2016-12-10 02:56:46.872196 | File "/home/jenkins/workspace/gate-neutron-lib-api-ref/.tox/api-ref/local/lib/python2.7/site-packages/docutils/writers/html4css1/__init__.py", line 288, in write_colspecs
2016-12-10 02:56:46.872238 | width += node['colwidth']
2016-12-10 02:56:46.872272 | TypeError: unsupported operand type(s) for +=: 'int' and 'str'
2016-12-10 02:56:46.875121 | The full traceback has been saved in /tmp/tmp.MGddJBZpRU/sphinx-err-cwC4qg.log, if you want to report the issue to the developers.
2016-12-10 02:56:46.875177 | Please also report this if it was a user error, so that a better error message can be provided next time.
2016-12-10 02:56:46.875219 | A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!
2016-12-10 02:56:47.306947 | ERROR: InvocationError: '/home/jenkins/workspace/gate-neutron-lib-api-ref/.tox/api-ref/bin/sphinx-build -W -b html -d api-ref/build/doctrees api-ref/source api-ref/build/html'
2016-12-10 02:56:47.307094 | ___________________________________ summary ____________________________________
2016-12-10 02:56:47.307128 | ERROR: api-ref: commands failed

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/409515

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/409515
Committed: https://git.openstack.org/cgit/openstack/neutron-lib/commit/?id=322ae30246d21d154b44b90e12ecf5506ae4ed68
Submitter: Jenkins
Branch: master

commit 322ae30246d21d154b44b90e12ecf5506ae4ed68
Author: YAMAMOTO Takashi <email address hidden>
Date: Sun Dec 11 21:29:21 2016 +0900

    Use constranits for api-ref target

    It should be ok to use zuul-cloner these days. [1]
    This would avoid docutils 0.13.1, which seems to cause the following
    TypeError.

        Exception occurred:
          File "/home/jenkins/workspace/gate-neutron-lib-api-ref/.tox/api-ref/local/lib/python2.7/site-packages/docutils/writers/html4css1/__init__.py", line 288, in write_colspecs
            width += node['colwidth']
        TypeError: unsupported operand type(s) for +=: 'int' and 'str'

    [1] I8f45a53429b9fcbf3689a268f096afdf5f32f461

    Closes-Bug: #1649079
    Change-Id: Id75e88f5031aeab21b2158c721881bf2da4a0d28

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron-lib 1.1.0 release.