Build failed. https://zuul.opendev.org/t/openstack/buildset/bd6dcdae5b5b4ece9fa7c55a5edc5787 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5cf3402c2f594e929c7529f5b53c1f8d : SUCCESS in 4m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e590f7a940524eaf9fecbf62aaec58c0 : FAILURE in 4m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b3c02194a2b0496ca67e000529b86fc6 : SUCCESS in 4m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/63826e80153541f9930d9c913243d01a : SUCCESS in 5m 41s