Build failed. https://zuul.opendev.org/t/openstack/buildset/d0439001726a47b5b31d0e07e50cde16 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b0201556c2bf4a7b89cc832636bdb82c : SUCCESS in 3m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6e45658c6cb141c9a43110827d4a747a : SUCCESS in 4m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/13b237f24c034ae5ba415b9d220242d5 : SUCCESS in 6m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/af7511371f9c4023a82bb32f27436a50 : FAILURE in 5m 51s