Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a47f34f07d9e44aa80d9df066b07898c : SUCCESS in 7m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6fd51446ac6c458b8eb98174127be800 : FAILURE in 3m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e4523aaf8d384de6b976ca6d0b2fb4a7 : SUCCESS in 6m 51s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/28c65ff9867b48d0996ac3e0162b3997 : SUCCESS in 8m 17s