Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/39b2e654f80845748a97cb0794ce3d6a : SUCCESS in 6m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e9138c89d3674387bdeeb9ea3b52c87d : FAILURE in 7m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ea61718ef5e548008233715d28b948c4 : SUCCESS in 9m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ea241b968ca543f0a4e400b39aefa4b8 : SUCCESS in 7m 36s