Build failed. https://zuul.opendev.org/t/openstack/buildset/29ef678c9565415b8a991ca95c6c03b9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/02ec7089b40a475fa26d38521a2d8b80 : SUCCESS in 2m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ae5be0c748f040928ceefeaa1f8bfc1e : SUCCESS in 2m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bb9b3240cb8b4d34ae96f8345f8a9ac4 : SUCCESS in 2m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/df30c1af23a8493d9cf62188f955ce3f : FAILURE in 3m 03s