[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/062e336f9211491e93063a6c6cb3ee... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cbea755370934d3ea133e3f235455c40 : SUCCESS in 6m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7c5ff44351da4591bfe2b0cfa3881438 : SUCCESS in 5m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bfb153fffefe4d4abfb68d3c1799c0a6 : SUCCESS in 5m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8bc49f2420ca487791b29c59676040d7 : FAILURE in 4m 42s