Build failed. https://zuul.opendev.org/t/openstack/buildset/c7715815e31e433fb7d080ed459810ae - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ba16cbf41415497e8b1279a6bf34b4d8 : SUCCESS in 3m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/91d5f3449b0b4efbb7a667d55cc7cda7 : FAILURE in 2m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1994ce73e91344278e0e10ebf234d0ee : SUCCESS in 3m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a7b45711b8ea4aceaf26b03fcc5842b2 : SUCCESS in 3m 26s