Build failed. https://zuul.opendev.org/t/openstack/buildset/7b2bd9a4161344d2b2b93ad3f3f51606 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4b295228854f40ff9f092ce35ee72fa4 : FAILURE in 7m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6babcff3efd34066a3a6cf78a2b55e0c : SUCCESS in 7m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/00faeb0ac8b54846a15a5ee3f9df75c2 : SUCCESS in 7m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5ba0326345a84fee8d2648423c742755 : SUCCESS in 7m 59s