[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/bd14a02a1b8744eeb93eb70d66512b... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/af4a133c3c3d44bab959e27a1f792fb6 : SUCCESS in 5m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1cb6f34fb2c1470e91d22c85a1fe7b66 : SUCCESS in 7m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6b2f7ea7f4704f16bd522c6af6caaa53 : SUCCESS in 5m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/01300e252b9a49b49577dca62e70de7f : FAILURE in 5m 29s