Build failed. https://zuul.opendev.org/t/openstack/buildset/d0487a3206554a86b3dca6c18d18d56f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bb2cdbbe8b81466cbc47b5019a82121b : FAILURE in 3m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1aa1e0f2ab90489a8970f6044df86f0d : SUCCESS in 3m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a21e01e9ef6b46e7b226b1dd0215a12d : SUCCESS in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b661e307cc074a898b363d65ff2ade7b : SUCCESS in 3m 41s