Build failed. https://zuul.opendev.org/t/openstack/buildset/876b41de2b664413b35673dc3fc7b957 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8e6c1444cd964a2580b2abdf1449fb02 : SUCCESS in 4m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3ea4a62649064f5a92b889a4a0a84429 : SUCCESS in 4m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6a1b558e9f9b474e983d8687b8f14db3 : FAILURE in 4m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/712057d497454a7ca410aa16da954315 : FAILURE in 4m 19s