[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/fb8fc1b0efec4d49a2dc3feb19d774... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/33b757cdc1bb4938a70752781dcb27e1 : SUCCESS in 4m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b659f9e16e84424ca4fd388e6843dda4 : FAILURE in 4m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/96bd3e814c8b4642bcecc0af251bd6ec : SUCCESS in 3m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e055bd6d82db41cc9db5e917441da344 : SUCCESS in 3m 40s