Build failed. https://zuul.opendev.org/t/openstack/buildset/1f6cdf3213c4444dbf443c95e271ed7a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c01fa42eaac84615be8b7c7415e001d7 : SUCCESS in 3m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/174eb0592e1c46d4a539dfb86bf3d89f : FAILURE in 5m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0d2a5873c1644acd931bdbbf76d6383b : SUCCESS in 4m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a1c5c1d217b14e9ba23f4d4a231d372d : SUCCESS in 3m 28s