Build failed. https://zuul.opendev.org/t/openstack/buildset/a66bd8d0673e4069a01ab8a86a19527f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/19aa2b18f5ac4e5e95de3d018d8982ac : FAILURE in 6m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6ad00276d85a4f9d9258d4c2b1b49af6 : SUCCESS in 6m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b82285c6fc1846a4a7c0d956a52e8731 : SUCCESS in 6m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/26de338d817a43e4b1942611db1b0faf : SUCCESS in 7m 59s