Build failed. https://zuul.opendev.org/t/openstack/buildset/e759d4f066894b54bac9cd3aa1720ea7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/045b2be60ad54f8eb99d602cb2f9cf84 : SUCCESS in 4m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ba89f218ea6949ac98c9b63f551e6669 : FAILURE in 3m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1034a72ead2743e6976c621c4ab53d9c : SUCCESS in 4m 30s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/496593e06c4f41ad9ab091e17e88b980 : SUCCESS in 3m 28s