Build failed. https://zuul.opendev.org/t/openstack/buildset/8d99d9e073f64440b9bd3f6fce8f51c9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/06c738499e9546a9ad80a2ca41d35177 : SUCCESS in 2m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1a821fed4e184b9db6b9ceef6dcb2e42 : FAILURE in 2m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e72b7b6670a844e1bbd96276d3ae47df : SUCCESS in 2m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/450f4f237c7c4e45a4a94dc9598511a8 : FAILURE in 2m 34s