[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/dec521f899404e11a4b22d924de69e... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/772a77a91c6d4594965f45ba8b5356a0 : SUCCESS in 3m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5e42f5649a6e467b9281e5dd9546f0a3 : FAILURE in 3m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0ce1b0c559f94bec9debb7803f6b53cc : SUCCESS in 3m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c5949cbbd3f940c7a2c1e925dccb63c4 : SUCCESS in 3m 43s