Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/af0a253b548b441f94185551bf0134ea : SUCCESS in 5m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8088ea9ee8674fe9a28eebaf9d9a04e2 : FAILURE in 4m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2f5b306671184d6991bd5485e5dc390c : SUCCESS in 9m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/644d68823e9342d2b5734ce263538f80 : SUCCESS in 8m 58s