Build failed. https://zuul.opendev.org/t/openstack/buildset/21222105792748aa9029801b8d029e54 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7d708e8770c24385abd224984b8a7483 : SUCCESS in 2m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b18b90d219534adb9976fc3b4826e0c3 : SUCCESS in 2m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d015788b4ea845789e8e3ac176d98d6f : FAILURE in 3m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9aea6f04beec4696bae7ce3964418e9d : FAILURE in 2m 26s