Build failed. https://zuul.opendev.org/t/openstack/buildset/009d43d6fc9841508f3e7eaaf2437beb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d1db5cf5ed8e48b09a5cdd90b9e3cf31 : FAILURE in 7m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d94e541ae9c64ae69efe01b4fb35b633 : SUCCESS in 5m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1f4d06d3a6e74d6baa16e9d0ae0eb86a : SUCCESS in 7m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/95a13fb0cf9a4031a9645caca6a5c3d9 : SUCCESS in 6m 33s