Build failed. https://zuul.opendev.org/t/openstack/buildset/735164a166474c2f9a4e87225972c4c6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6e8e6031f6f048e78bbbcd9f69669ddb : SUCCESS in 3m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f3042164dc874f4aa0bb1e5400f7c99e : SUCCESS in 4m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5c7ba7ba3e0b4bc6b0f9382eee785a69 : SUCCESS in 4m 13s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bf38fbe052294ac4a284951f09cc9b26 : FAILURE in 3m 56s