Build failed. https://zuul.opendev.org/t/openstack/buildset/34cdf872f4644ac58c431fe16a05c5c6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6b93b4e1b78d41c899bdf952d532a997 : SUCCESS in 3m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/474dd195fcd64ac38ca8ec136f1712f7 : FAILURE in 3m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6bb16ee896a24d5aa74d58154153ebcf : SUCCESS in 4m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2e8e8ea4eb514e11a61a55456179ecb0 : SUCCESS in 4m 15s