Build failed. https://zuul.opendev.org/t/openstack/buildset/f317528c52c94e0e8830a4b6d4e9e85c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dc1a98c32b18409faaa59d27a1a14aff : FAILURE in 6m 34s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4b5837e5d56749eab930acd7679facda : SUCCESS in 5m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3674c08ca2ba4be9aa822b133d1d208d : SUCCESS in 6m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5d7ecc606fe945b08eb31b556d4a6913 : SUCCESS in 5m 38s