[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/2377fd608f804993950783d8662cbf... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9583059578774dbaa675805dfc40ffbb : SUCCESS in 5m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fedd7372a6934dc78cefe0bf027cc1c9 : FAILURE in 3m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/43ac23bd122b4bacb978b62fd85295d6 : SUCCESS in 4m 23s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/55b0048da4d34d2888eac5d9206fc31c : SUCCESS in 4m 45s