Build failed. https://zuul.opendev.org/t/openstack/buildset/223ea542aefc49f9b090e29dd694d173 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bce3df5f995a4719a0ebd6356b0c9233 : SUCCESS in 3m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/db80118794af40208c73e3a7ac1e45a6 : SUCCESS in 5m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cb183e8be94242baa55e7e77fc44ce81 : SUCCESS in 4m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2117a123fc3541348c77e5d554d6b350 : FAILURE in 4m 04s