Build failed. https://zuul.opendev.org/t/openstack/buildset/9992cc8b85634c58bd885412e76c90d2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9a305996494a41edb951c6b7945a994c : SUCCESS in 3m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/708dd4d965fd46149f9cd86f5656b6da : FAILURE in 2m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d5fe5d10485f4852b56573d24442e359 : SUCCESS in 3m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/377d67b670924fa383d7ce6c259012e6 : FAILURE in 3m 26s