Build failed. https://zuul.opendev.org/t/openstack/buildset/c6285ce86c03490ebc1eb51439ee7602 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/35fb04f1fd9c4a49bd43528ae0884af6 : FAILURE in 3m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e3d034acb71141709c0da3e12a8fb6aa : SUCCESS in 4m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a52f5cadeb244544aa9e383cbe972fb2 : SUCCESS in 4m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5b83812813a4449aa21b0faf71382eb2 : SUCCESS in 5m 02s