Build failed. https://zuul.opendev.org/t/openstack/buildset/f1dc9dbbd24e46f2a4b27f6ac7aaecab - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2b98f8c2aa8e4629ad60a226ba48fcd3 : FAILURE in 7m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fd6228459c5b4b2db9c3dfbd55fea045 : SUCCESS in 4m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0a3e980c97ca4051851e79f2ad2815c4 : SUCCESS in 5m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/adc59a01ee0a432aa031b2a7edbefa82 : SUCCESS in 5m 26s