[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/517335d824034086bdf100ba71a0b4... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a2a518648be14e129c33d9d8003d0e1b : SUCCESS in 4m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/580d1a5fd26c489ebac10bd76ce7f786 : FAILURE in 2m 57s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6aa51d9106bf4fd2b8798b2861554429 : SUCCESS in 3m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f7181aa6f12d47fd87671b1b667d40d2 : SUCCESS in 3m 56s