Build failed. https://zuul.opendev.org/t/openstack/buildset/b9056ea313c74deeae961f7c908c4e3d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5f8ee4e922194b58beb2588b9c83f8e8 : SUCCESS in 2m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7c19bcfd5bf0499f810f86813b454069 : SUCCESS in 3m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/71efa0624aa447e0bb7edcdb546ba9ae : FAILURE in 2m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6c583dd7eaac4eb6b1511cd68f06813d : FAILURE in 2m 35s