Build failed. https://zuul.opendev.org/t/openstack/buildset/52244c2410564534a344ecd6f960f68f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4121b90dfd5f41de9a37c319f338e018 : FAILURE in 3m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7e5e86a4c3bc4326b040901f91dba680 : SUCCESS in 3m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/edb1cbe8639d4ccc953369fe7ef565f1 : SUCCESS in 3m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6ca7c3ca37464cfe972d231b152c5539 : SUCCESS in 3m 53s