Build failed. https://zuul.opendev.org/t/openstack/buildset/0f5fd4f414a74afe934a7b1134190deb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/929850a2b5d74d8bb0271ead9eb14769 : SUCCESS in 4m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ce6f8b36f97a4ca2b9383990d52295ff : SUCCESS in 3m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/64e44b75259245238f7cf87ffdb54eb3 : SUCCESS in 2m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ad3911a81b144f1a95df54c973650e6c : FAILURE in 4m 42s