Build failed. https://zuul.opendev.org/t/openstack/buildset/75afe6e22406443eabd57f7ad9fe9e95 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9d8888d9c8284525acf53b7a1761290d : SUCCESS in 5m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d225f927ea354e74aeb9c2ff094b5e13 : FAILURE in 3m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/53b11e3eb30a4bd4a1fb43bf90ca15c8 : SUCCESS in 4m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9110046488f848cda1885acd5de876b7 : SUCCESS in 5m 08s