[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/7199dc5b6410438394fcb5fccb5f4d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b8bb6e7c7b0c42a2af01dbf9df28277c : SUCCESS in 3m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/aa980aec1dcf42b2bff72e7f463107bf : FAILURE in 2m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/648191a39b0c44c5adaf36be3f2bcb36 : SUCCESS in 3m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7c6e3c54858743c8ac7e50d29ed6dbfd : SUCCESS in 4m 29s