Build failed. https://zuul.opendev.org/t/openstack/buildset/d0ee8466777d4a7ab7caaff212badbda - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bc0780cc364d4377a501e044446d3366 : SUCCESS in 3m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/60f5c5f7cd734d99bcdaa0545a60f83f : FAILURE in 3m 15s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d2eab3172dd740bd8a4deeba12be5464 : SUCCESS in 4m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1c2f6c25c6954c279e306abe320ddb00 : SUCCESS in 3m 28s