[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/b86822c448dd4bc49ca32d78fcaee0... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b7410f91938446c2a6a7f2eafffee253 : SUCCESS in 4m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fab2ba6579544d62a66ad36d5f6dd5bc : SUCCESS in 5m 27s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6ab51fcae8fe42459d0315c3027462ef : SUCCESS in 6m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/90a56c3604044591bea8a5f901efba3f : FAILURE in 4m 24s