[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/65ccc04c682f42369830fbf43245f2... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6dfcc076842e41cdb3717431b5bd06ca : SUCCESS in 3m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1383c17e5d3040418c188a238c9c31ce : FAILURE in 4m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1b53e4ecc3b44c7b99d2c2f58eb6d8b8 : SUCCESS in 4m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b4dc49faa6834b0681dc33ab220827d3 : SUCCESS in 4m 06s