Build failed. https://zuul.opendev.org/t/openstack/buildset/e5a40113b35c41af911f8ae51a439de8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/65df9be7299a406d8330fa8fa6aff350 : SUCCESS in 3m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/99a5572674e74d2d96893d8691ab5b7d : FAILURE in 2m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/47d76deee7d94b19b9e698675522ac39 : SUCCESS in 2m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3f66b39b0d264b549d1661e851e0170e : SUCCESS in 4m 06s