Build failed. https://zuul.opendev.org/t/openstack/buildset/a830144aa4a74b808568de17e25ae7ee - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9c72482e52824900a918a57174aecab7 : FAILURE in 7m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bf59d6464a844885bb7fe226d0ae221e : SUCCESS in 6m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bb0c8939b14d42a5a27b0388e185347b : SUCCESS in 5m 13s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1f7694538f2743e0961b46a4ae4a09a2 : SUCCESS in 7m 12s