Build failed. https://zuul.opendev.org/t/openstack/buildset/5050eab7ef8948df858914fb9cc4a21c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3d7fab911117494dbb45b1c86d11b29c : SUCCESS in 3m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6a94f7d8a6734175b02d19c664260857 : FAILURE in 2m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/207a07a53e8249f9bd1682c9a58e6529 : SUCCESS in 5m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f070092286cd40b389273dff6473dd4a : FAILURE in 2m 40s