Build failed. https://zuul.opendev.org/t/openstack/buildset/6c0f9d36289446e5a87180898699d18c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ab214f8b90bc42a19819b310599e8f3a : SUCCESS in 5m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e7513446317b4f2e9de04ea76fd44a85 : FAILURE in 4m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/005b5ab965174ec0a9f947b9f79a5540 : SUCCESS in 4m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/779cdab9e5ed410ca47abe62da7349ce : SUCCESS in 5m 02s