Build failed. https://zuul.opendev.org/t/openstack/buildset/40eee054d3094f4a8ceb87d0ed5dcb68 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/449e620d19ec40a9b704e2b15664177b : SUCCESS in 4m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7fa310c365774b229284786409e8bc74 : FAILURE in 4m 13s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a3c1d824bd1c46b0a8404c7acd32171a : SUCCESS in 4m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a3c720e13cb8424090c27ea013fd3181 : SUCCESS in 5m 14s