Build failed. https://zuul.opendev.org/t/openstack/buildset/3cd5cadc061c4c71a59c6281e151e0e4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1813857be3fc4c89b473f87839afd6e5 : SUCCESS in 7m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/395d67fc34dd441f8fcebc6ba5568eb9 : SUCCESS in 4m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/04525e83430449668053b4b24911b9e4 : SUCCESS in 2m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8bf14e387ba743079f9ea8e0efb6978f : FAILURE in 2m 42s