[Openstack-stable-maint] Stable check of openstack/oslo.config for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/65e07eefcaed4c2595cf60f541b962... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b34f0dbdc7da4b71aacc56bfbadc12fe : SUCCESS in 3m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a4710581df314f5ea65c40d0cba0784c : SUCCESS in 5m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/25f8608c98a442e9a74d6a144a56acbd : SUCCESS in 4m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/14968d64f69f451299361818ff58be88 : FAILURE in 4m 04s