Build failed. https://zuul.opendev.org/t/openstack/buildset/d288f32ecedb4f0fb2debf8404a19120 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1787268fecf149af8d730e8de5100606 : SUCCESS in 4m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0d51de5731b449b4b58fe86ea9a1a1ee : SUCCESS in 5m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/81d32ec170764259a1c9070cc3af44b1 : SUCCESS in 6m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/00d879f37d9642188bf0e7be76ae6b77 : FAILURE in 6m 12s