Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/484cec5b8ffd46f8a6ef3e1a57b1532d : SUCCESS in 4m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e810c3a799254a05af673b81bfaa9f7a : FAILURE in 4m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/aaf427231c9c4441aa435c66c7b5fcea : SUCCESS in 4m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/dd765c39f9584d7aa5897d68fa6e96aa : SUCCESS in 6m 35s