Build failed. https://zuul.opendev.org/t/openstack/buildset/375f535b029a42bd85ad5f5495a44d5e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/790565ccb73a4239950c4e162c4f3e64 : SUCCESS in 5m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/017a917ec935448ab50d1b90b952353e : FAILURE in 3m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4c122ec5c2f34f69a16ea61e70cdb06b : SUCCESS in 2m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/79519e45132a44218917aeb05970e940 : FAILURE in 2m 45s