Build failed. https://zuul.opendev.org/t/openstack/buildset/2d1a13c3f7244d2084dabb85477d3009 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/21c8f8b8f02b4a3faa017753b4a560ec : FAILURE in 4m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7bec5ce00a694a5497c8eab797ac6d20 : SUCCESS in 4m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/40114ccfb93b47f0b8558e6a32b337f6 : SUCCESS in 4m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d7e13bb65f3146c49558c8f28d3cce05 : SUCCESS in 4m 28s