Build failed. https://zuul.opendev.org/t/openstack/buildset/4babd5fdcb5b46a7a09516b663328657 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/be136a57b52c4ed79af083d9ae0a882d : FAILURE in 3m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cb6023ba81ad4a7a9ac20192c18af78a : SUCCESS in 3m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e7d2f3411a42415aa2ba27af3d71ace6 : SUCCESS in 3m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6898dcb3c8a349edb62a459244ac992b : SUCCESS in 4m 22s