Build failed. https://zuul.opendev.org/t/openstack/buildset/47857f69242a4eb398350a4bda0e7bb9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/23423f2ff0c04c8b85de2d71b364e4a2 : FAILURE in 7m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/76a297eb1690401ba81be4a2bfae8cc6 : SUCCESS in 5m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6b78a3fa245949c09591059d53934baf : SUCCESS in 5m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/566344351b2e4acdb8a0263a631eeb4c : SUCCESS in 6m 16s