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

Build failed. https://zuul.opendev.org/t/openstack/buildset/48756d25c32645c3b3c1361b921ee5... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7ab52bbad4f64b6a843cf1cc8e111e22 : SUCCESS in 4m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/940e4cda50124683938d13130d6f27e0 : SUCCESS in 5m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4333059a3aea4308a6ff3547380c8664 : SUCCESS in 6m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/49ff24bca9ae4719a44931d513d561ab : FAILURE in 5m 30s