Build failed. https://zuul.opendev.org/t/openstack/buildset/dcff767488ef4be5ae03809695e13a74 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cbe5428dd40c403a92134a3bb0dad580 : SUCCESS in 2m 55s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0586b31b07584ebcbc4660ac6c8723a8 : SUCCESS in 2m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6d549fae999a462aba52ea5c68a295e4 : SUCCESS in 2m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a98ee7b4024e49c8946b2807d72355d2 : FAILURE in 3m 02s