Build failed. https://zuul.opendev.org/t/openstack/buildset/ad48d63aaa384abe8836439bab233fa8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/222a43d7e8f644a1b32203b73e510995 : SUCCESS in 3m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9b23a2cede7249a8a8f39ecc285d5e87 : SUCCESS in 2m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/595996e207004e1ba2e8ee7fb7989615 : FAILURE in 3m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/099490d0bb2643109cbe8867cfed73fa : FAILURE in 4m 05s