[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/5e9c4e5dee2245b3ba4bf2fa86a8c7... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/54cd25abc94e4f53861f2749de70496b : SUCCESS in 5m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/00fd8590d36a40d9aec64288bf7a9236 : SUCCESS in 5m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/846cc4972e124b15aaf3d22b4e94c438 : SUCCESS in 7m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4efcbb113fb94a57817d9f1442dcc15d : FAILURE in 4m 21s