Build failed. https://zuul.opendev.org/t/openstack/buildset/0d88f3699e0e4666b6355d5b3c724a00 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8a74efd8c39448a99815f8b631171a40 : SUCCESS in 3m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c44834ca57b6429a9b355305fc35c0df : FAILURE in 3m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/125a6f33ca5f48dc90f1401dbcb4e025 : SUCCESS in 3m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7e8295fd8b6f4927a48c56a24d761e35 : SUCCESS in 3m 53s