Build failed. https://zuul.opendev.org/t/openstack/buildset/79d880bdb35a45a79e2a2ad604864637 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d69435cae050477799ce9c1dd41cb041 : SUCCESS in 4m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0e0b38baf4854ec1bf64070c2abc9720 : FAILURE in 3m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ab3775a0ebb0411bb09c0e25b9f45a23 : SUCCESS in 4m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2b78e82e431c48f6a7f0d6c37f7f37ad : SUCCESS in 4m 30s