Build failed. https://zuul.opendev.org/t/openstack/buildset/57fff0a075d2482aa1ea5b510342baba - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6204708e89f24448a5c43d20e6b39dd3 : SUCCESS in 3m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/eda801d2515c403085fc88a919ff2184 : SUCCESS in 5m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7d1e9b84934e4bc492622ab8a4dc7aeb : FAILURE in 3m 09s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/117eab27f85c4ca58f68d02c8a0b2f98 : FAILURE in 2m 42s