Build failed. https://zuul.opendev.org/t/openstack/buildset/b3e9990db83246a69cbc5d414338a9d4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d2ebd9a0e5ac405bafe05b050d6f10e8 : FAILURE in 3m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6ca0687df24d42de8bebd85ddb9e73f6 : SUCCESS in 4m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4449ca04c49242b8adfa1af612da9467 : SUCCESS in 3m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5c60dad27f9046db9b912a4f3dbf9ce3 : SUCCESS in 4m 03s