Build failed. https://zuul.opendev.org/t/openstack/buildset/52d09eb3dfa84ad08e21772e256b32f8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8bcea8b65a6e4a2d8b140b40dd2d615d : FAILURE in 6m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/85869c9fd88249d380978e90d68d7f69 : SUCCESS in 9m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2d83f0bbf64141f2a38bd84ed67e0143 : SUCCESS in 5m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8337e9318d7b40a2b483f200329a2e11 : SUCCESS in 5m 23s