Build failed. https://zuul.opendev.org/t/openstack/buildset/13e4cac429354c1cb00d01ac72531b88 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b6feb04a787b432aa46780e82f9452fa : SUCCESS in 4m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1466941401994760b2324d884344d9b0 : FAILURE in 2m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6067f03e2e1241cfa1298a8863e016a1 : SUCCESS in 4m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1c8954c433bb419d8940c0facc714b14 : SUCCESS in 3m 42s