Build failed. https://zuul.opendev.org/t/openstack/buildset/2ec69390ac1b46e9a12e05fd862358ab - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/373c55e61ad44f5c921a491b2c570aa9 : SUCCESS in 3m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7ae6e6342500479c9e35d8db0618b287 : FAILURE in 3m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7c988674688949f1bef9c67860cdd238 : SUCCESS in 4m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/614397f16edd4685a5b99af259c0c3b8 : SUCCESS in 4m 07s