[Openstack-stable-maint] Stable check of openstack/oslo.db for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/717840988d8448a78155640d9f5b7d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7516f6e10b7c4ebfa18b2c586fce77f7 : SUCCESS in 5m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b89f0199f34e46bf80ed67615c9486f6 : SUCCESS in 6m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e855e25350014e94a66cc7cdd15f8dac : SUCCESS in 4m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4d6e6038d6164d8eb6f6a1644fb3dae9 : FAILURE in 5m 39s