Build failed. https://zuul.opendev.org/t/openstack/buildset/d47f93386eee4bf58a6f2cd38b4cc218 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/74c77f6a296346f6998755ff01bd01f5 : SUCCESS in 4m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cea8215ce01f4f24b11e9a9b84b6cd00 : FAILURE in 3m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9cc85a3b0322423fa11ae00880b0f336 : SUCCESS in 3m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/edb6c4aa70ca4a8197419397febead4e : FAILURE in 2m 40s