Build failed. https://zuul.opendev.org/t/openstack/buildset/29c2d3c65d6040deaf5e21fa8889a0c8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c180725734f24c1ab6e56f3ad52c090c : FAILURE in 5m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7fb8f25a573842e4aa42e123c055f9fc : SUCCESS in 5m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/71ed6e1be33348df97a34a9f62b68718 : SUCCESS in 4m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5d608a41f1374028bdac51508d3ba428 : SUCCESS in 6m 55s