Build failed. https://zuul.opendev.org/t/openstack/buildset/a6b49e7fdfb94a8c8f3ac9258f4484d0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7f83fdbd5398443c9ec6f023b19e4433 : FAILURE in 7m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ef49dc33fbfb4eba838ebf5cb6e689da : SUCCESS in 6m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5117d10738c240b2a88a184f81defc88 : SUCCESS in 5m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e715e929812745829719b1d2f1cae8c4 : SUCCESS in 7m 26s