Build failed. https://zuul.opendev.org/t/openstack/buildset/1b2894ab5d0e44d5ad2be9e0f86a7509 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b8e9e7c59b8e434eb5c4179945d1e5e4 : FAILURE in 5m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/59c58f65716748799e6d9d14e9067e58 : SUCCESS in 4m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1050722f295b43d0a79e57f2481c0d6a : SUCCESS in 4m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/217c3f454eb94f9287b282d27af19c97 : SUCCESS in 5m 30s