[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/7b66004b5f204bdfba208c0aad0d52... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/71cd3c3acdb44c5283b73e294d09041e : SUCCESS in 4m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/40bad7a5bbbb4335acbdbc775c6aa21a : SUCCESS in 5m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9da8d98167854405b36ea06445b9e04d : SUCCESS in 5m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1c25fd2c4cd24699a10e51ae0abe8c83 : FAILURE in 4m 00s