Build failed. https://zuul.opendev.org/t/openstack/buildset/8a01aee93a544cceb506b78dcd523486 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6a9d292fc1a54218abd68d5bbd7c4697 : SUCCESS in 4m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b1098069f4564e87b74fb198127df765 : FAILURE in 3m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/05c278d23d9b4aeb95e5d80556025c7d : SUCCESS in 5m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ba6c79edc3d14fd7b6cc175650a7edd8 : FAILURE in 4m 15s