Build failed. https://zuul.opendev.org/t/openstack/buildset/ff630e6616824d53b505d1b3f06e8828 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1aa14919d69d45b98d6f57154a10fd19 : FAILURE in 6m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e3a724cdeae74fa7a62eb1080b8d9e52 : SUCCESS in 7m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4938e1791af44c3b81df6bd44fb60f94 : SUCCESS in 6m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/600df4a75fca4df68e4eacd350dd29dc : SUCCESS in 7m 55s