Build failed. https://zuul.opendev.org/t/openstack/buildset/e05d9f51bc814b4b899cdfc546699c6d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f12f1cce0c76490497978d369f16e997 : SUCCESS in 2m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/173ffb578ff24a9884ce3b3e8e3f4307 : FAILURE in 3m 18s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/603860df1ef247b5837fdf0875d604d7 : SUCCESS in 2m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/58a56af8c0cc49e2a5a0e889be4aed4f : FAILURE in 2m 46s