Build failed. https://zuul.opendev.org/t/openstack/buildset/b8f9a6da5f9b4bab99209608c5ccf4af - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dc80455c730d423b89670c74f2c0ffeb : SUCCESS in 4m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a0214b6dff4d42baa76fb9c6ffa9096c : SUCCESS in 5m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d173ca5f951b43bb8e7ba9a6d2a85c0f : SUCCESS in 5m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/335cbffa42f44cd1bd3a9af7fa3a0c73 : FAILURE in 5m 48s