Build failed. https://zuul.opendev.org/t/openstack/buildset/3bc85937a1b8408ab051c9db5bcc8e64 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8284d5b15e8b4566b895dbdfe3c70c48 : FAILURE in 5m 41s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/941f119a65f14829832f63cae72f58eb : SUCCESS in 6m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/221a3e072e2c4b49b83574606d1fce25 : SUCCESS in 5m 51s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2e9c5c6bf4174001b1a1f88d16fe0d09 : SUCCESS in 6m 28s