Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/375799bf21d949ae95013211f37e3691 : SUCCESS in 4m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/54e5adc649084c7ab9d6a6a07fb7b89c : FAILURE in 3m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/873a86dcdcec4c4f865f697a1e5d3464 : SUCCESS in 4m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b2e33a23fc5f49c8b823721ad92e8a3a : SUCCESS in 5m 21s