Build failed. https://zuul.opendev.org/t/openstack/buildset/c09d1c60f7fa4112a855c74c2f3e6cdf - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/053560b1065b4ffb8044bbe68346049b : SUCCESS in 3m 34s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ff72e8aa24624f71a85c31bfb086bc33 : SUCCESS in 2m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/503961fbfe904fe383503c6bdc16a051 : SUCCESS in 2m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/aad6800c483744748bccc12122b54f1f : FAILURE in 3m 02s