[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/0479ce0a0ace48ba8bdace2959e022... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1429a412d36a45c7b9ae5ce4867dd6b8 : SUCCESS in 3m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4531ed1ec42743b6b239f2c96ce118d5 : FAILURE in 2m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9c64d907f50c40899a09dfbd0309ad24 : SUCCESS in 3m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6b0e2e852c904a5f94c32f92163bc1bc : SUCCESS in 3m 34s