Build failed. https://zuul.opendev.org/t/openstack/buildset/91e8826685c74d9c920853cdda4204f8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b944e8b9c0514c70be76c57f498b427a : SUCCESS in 3m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3de47f830a574d1786c937bd5cfb7232 : FAILURE in 3m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6db326156d204b69a465b5995aed2cf6 : SUCCESS in 3m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fe13252db36142e3a9129c01978086bd : SUCCESS in 5m 51s