[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/326ea2d22c0641489c5813b6896189... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9c7ad860a18440a893faedef6c77b14d : SUCCESS in 3m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f8f913b4fee8465ca035fcbc8d0f70a5 : FAILURE in 3m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c793e841c63c4c499393ec8a7282f3c8 : SUCCESS in 3m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c5c93e2bc2d04d0b8245e93f7056e2c1 : SUCCESS in 4m 19s