Build failed. https://zuul.opendev.org/t/openstack/buildset/9eb5060b3da64f3d8e84df5c2bade870 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c813c3b39970490e867d480fe43756fc : FAILURE in 5m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0a282336fe7d4aa785e1dda6d5f5ae95 : SUCCESS in 5m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dbbaba0c4f6948f29007f677164a144d : SUCCESS in 5m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/12ab2129ed0e403b9c68ea4ce573845c : SUCCESS in 6m 11s