Build failed. https://zuul.opendev.org/t/openstack/buildset/e1043d266e3a4eefab68289d81c9c0d6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d586fe68091a4209b7e9a58fa5e918b0 : FAILURE in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b55b0595e0b1431284205610d6f7f85d : SUCCESS in 3m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/65f742f0e95640b59685a830f11a921a : SUCCESS in 3m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5c1b00318cc04b0aaaefd536b675d13b : SUCCESS in 3m 18s