Build failed. https://zuul.opendev.org/t/openstack/buildset/5edc26b077014d459dc4cc01d42cc742 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0a283cb896e34704ac3fdaf5a9c6a647 : SUCCESS in 5m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a4c055e11b0646bd8c4b5591c7765971 : FAILURE in 3m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/35d79cd9a2d344f3bea880ebf7daf73d : SUCCESS in 3m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/58e05d1541c04acab2afbe6e186464b6 : SUCCESS in 4m 10s