Build failed. https://zuul.opendev.org/t/openstack/buildset/38f86dd5203245e9aa7caae3b76a748f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/91006f62db0a41909222fbaa24b1c84d : SUCCESS in 5m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/529e7bc5c3fe4b2faa753184d93c4c68 : SUCCESS in 6m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9f31955afb35440b8c2376cd38e4cad1 : SUCCESS in 5m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/320380da77d944f290585e4da266aa57 : FAILURE in 4m 41s