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

Build failed. https://zuul.opendev.org/t/openstack/buildset/1241513808fc47ee9d5deabe693085... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e260deaaa8694bf4b1c624aa56d6cec5 : SUCCESS in 3m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/79dacbf11c904c0ba7f7f18fd72d58fe : FAILURE in 5m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4f3c7258dc804dc8bcb25fb1ef843345 : SUCCESS in 3m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1f1cadf5f07144789981f06a2c6595c3 : SUCCESS in 5m 19s