Build failed. https://zuul.opendev.org/t/openstack/buildset/faed41aab5064950ad3f7986e5d917f5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4d1ab2eba4784634998b6c90a3965feb : FAILURE in 7m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1153efae12454c9386bca2e89aca4d2c : SUCCESS in 5m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/718ffa7472314c30a759301e3240b1e9 : SUCCESS in 6m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3c1221dfddef490aac493002ffa70935 : SUCCESS in 6m 17s