Build failed. https://zuul.opendev.org/t/openstack/buildset/24f56a659d4b4ada998200881f4fd7bd - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/883bfe0bd38841a8aacfcaea2f36f030 : FAILURE in 3m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/67f54e2fcc5d48108f93c26e34181475 : SUCCESS in 4m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/11bcf903a0374c41a63b2a0edc38e5a1 : SUCCESS in 4m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8351f002c81345faaed768acad8844c8 : SUCCESS in 3m 30s