Build failed. https://zuul.opendev.org/t/openstack/buildset/cfb6c84756514fe5a7425c1001b187ae - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5db292e17b8c419988d6b78946e9c496 : FAILURE in 3m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c1882bd422714031ad1ce60849b9d3ba : SUCCESS in 4m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/da6f36a4cf6143299aa609ab2304a170 : SUCCESS in 4m 51s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c327e485cdab46158b91155b1f1c2983 : SUCCESS in 5m 18s