Build failed. https://zuul.opendev.org/t/openstack/buildset/288304074e5b4283be30640bf55f0df5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/84ddf9f280eb4c71bf58d99f3ba16c23 : FAILURE in 7m 29s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/509d48d7e3464b44bec6713b4bc9edda : SUCCESS in 5m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/52223b12b18d402fb54ea8b7a3862963 : SUCCESS in 5m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d0761aa10d97463eabd62fbe91f88dad : SUCCESS in 7m 04s