Build failed. https://zuul.opendev.org/t/openstack/buildset/d5511a7bcd2a4a069638b70557bc5bc5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a4b6847611ea4f4185408a7399bf8975 : SUCCESS in 3m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5ae2f79331ec4f22a2fb3630a3abf14b : SUCCESS in 3m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/67d16aa7cda842a4bd1bb60d976e3b55 : FAILURE in 3m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/327399384e15465e81ff144acf843d0e : FAILURE in 2m 58s