Build failed. https://zuul.opendev.org/t/openstack/buildset/2385466ec80244eab5d7a3aea991aae8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6afec49e8c2f4d29a9dfd351dd522e32 : FAILURE in 6m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7a57f8278c5449a4adc01504e23e62ad : SUCCESS in 4m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3cdca609bb27440a89e6748d61d88184 : SUCCESS in 5m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f2c62a16b9c8403a8f98a4bfb6cb0f1c : SUCCESS in 5m 31s