Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/16880bfd9e0d477e9f9b96da08e03da3 : SUCCESS in 4m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ee69aad9fbf5424ab9f90094e6802267 : FAILURE in 3m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ce0d96f8fa034eb9a82088a8aab16675 : SUCCESS in 3m 30s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/72f01e7ed5c946a8b48b066434449dd3 : SUCCESS in 4m 06s