Build failed. https://zuul.opendev.org/t/openstack/buildset/50a8d640b0a64a9ca62c836a532864ef - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1bfc5dde68c342f78e76e91de7fd9843 : FAILURE in 3m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2cf3a5bc9f724f3f820ee7777b814035 : SUCCESS in 4m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3207dd5f4f1a43e2a35e1599f35d003b : SUCCESS in 3m 09s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/39eff1d6b070431c88fd5944249c286b : SUCCESS in 5m 14s