Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3b470b3affde419aa744678930ead4a5 : SUCCESS in 7m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/907b220e2a904e85ac9cc0f4069f0dbf : FAILURE in 5m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bb5357d52cbd4f5dba2f5d0a23c616f7 : SUCCESS in 9m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/751653d42f2e46708b224074d36e9138 : SUCCESS in 9m 42s