Build failed. https://zuul.opendev.org/t/openstack/buildset/2a7e45451daa43038606531690157ac0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/294fded2e3dc4d58ac5d15bceb171e40 : FAILURE in 6m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4880941d03d545f58671c8df48f569ea : SUCCESS in 5m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1f80b5b26bcd41e7ad0eea0c60586ef2 : SUCCESS in 5m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ba0ded4a9dea4a86a01ae0b771a2c262 : SUCCESS in 5m 24s