Build failed. https://zuul.opendev.org/t/openstack/buildset/fd8a31bb0cfd4cf7bb8decbaf8e61db0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9afb53c5e398471ab534fc75c2e45601 : FAILURE in 5m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bb6ca2e752b84dc0a2f308a6b6e0bd80 : SUCCESS in 4m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6ab6ea4d760b4776950abcad5202b366 : SUCCESS in 4m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bb06ec7d30a94b85aa868b1e57bb7e4e : SUCCESS in 5m 54s