Build failed. https://zuul.opendev.org/t/openstack/buildset/e47742c3851d4d61bc8845080b6bd534 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/471aced7e50547c89046fb81ffe9d0ee : SUCCESS in 3m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/274186ee1ac242a393f2fcc03dbee112 : SUCCESS in 3m 03s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1c9a9025440c4f9b91fffd07feee0a87 : SUCCESS in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a14a7c274deb42618ef8a08ecd413162 : FAILURE in 3m 30s