Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e3a3209173974f188229db0285dcd6e8 : SUCCESS in 5m 29s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6f5bf56ed1b145e8a0609a454d66db8d : FAILURE in 6m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0a2b927038b94bf39e37ea414879fbf3 : SUCCESS in 6m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f337dc14388246dc8aee1f69d22d3c75 : SUCCESS in 6m 25s