Build failed. https://zuul.opendev.org/t/openstack/buildset/c7abda44afc74e6e8224cac8fad8e6d6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0d3375576dd54d3992b940f6806af1e8 : FAILURE in 10m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b5d7f5648a174d388c44754eebe6efe6 : SUCCESS in 6m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f6a61c3f8f6542d79d94b6ca0f2f992c : SUCCESS in 6m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fe1eb76aa0cc4ba694c719ce3cf4c358 : SUCCESS in 5m 35s