Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7b814803482f4ce7870e8ede77ed204b : SUCCESS in 5m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fb2591990b7a484090ce3be802fef92d : SUCCESS in 9m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/52dd5eab900e43b6bf42420e9183d8fc : SUCCESS in 9m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3561edfc8e944f779d18034c65545416 : FAILURE in 4m 50s