[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/ac47aee615db47ab9788c1ac45d3bb... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d84fe2d2b42b44188ec041594b305a76 : SUCCESS in 4m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4734529e59c346028f6011d05b670424 : SUCCESS in 5m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2733df9d6b90404a96396b65da492c41 : SUCCESS in 5m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d2563528f11349c29fc38d2299a9e5bb : FAILURE in 4m 29s