Build failed. https://zuul.opendev.org/t/openstack/buildset/6fec8847c0294184a0dc49e2e8957756 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b44a4ffa33a1449f895b7699028be6fc : SUCCESS in 5m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5cd31ad47021425295038d17f7fab016 : FAILURE in 5m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d74c96d235d84d3fa80a1cb52ec6c71b : SUCCESS in 5m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e206b789c18b4a4886980499284e87ce : SUCCESS in 5m 28s