Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5c17fce6d1ca4118a90de84cb0495b29 : SUCCESS in 3m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/665b1a1e6f55427ea85d25756555fa6f : FAILURE in 2m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e64d19437c0c4b9097c520eb7a85d4f9 : SUCCESS in 4m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/767d45994ad247acbef8b604734fec8c : SUCCESS in 5m 55s