Build failed. https://zuul.opendev.org/t/openstack/buildset/ad8a3d3ef8474ab29073b0424face9ee - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/711a7c1d7a1c4597b020644c64a23341 : SUCCESS in 3m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b1f35f1ab60d4ff5b04f94f4b153608a : FAILURE in 2m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/975696742e9344c9b859c67cd912495c : SUCCESS in 3m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3e14444fbe3e43009fd255d5243d3fc7 : FAILURE in 2m 44s