Build failed. https://zuul.opendev.org/t/openstack/buildset/ea22c1e934264452a3729bbeb127818b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b3b99e0edf7d48868cf788c354f80fd3 : FAILURE in 6m 41s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bde60babda3b499f98aaa2f60b6077d0 : SUCCESS in 3m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/47ed65b0537043d3a3d89dd365ac17eb : SUCCESS in 4m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d3a55197104d4efc90ab505a24fe6a42 : SUCCESS in 3m 20s