Build failed. https://zuul.opendev.org/t/openstack/buildset/9a1e436b679c4ce895e308d0d1b51858 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3727f8af296a48f5852dc93231493cba : SUCCESS in 4m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ca29b9ca144a41c3a4646ab163749b9e : FAILURE in 2m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2111ebd745994710bea3d739c380ebe9 : SUCCESS in 6m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/da4081e4cef44e1d85df579b7e037e80 : SUCCESS in 6m 08s