[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/6aef2c036dad421da1b344b6311013... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ff39047906114524bc69aa111d7fa7d9 : SUCCESS in 3m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/75552e09cb0a45c29f9dc4a4df1c31b1 : FAILURE in 3m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8b0ab6ecd02746fdb077cb5a5982b3a1 : SUCCESS in 4m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/02403e0630e64b6398c389c71374a8dd : SUCCESS in 4m 08s