[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/1032803907bf4e169c32df491df0a1... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bdbac8c42bf84070b55ca3edbddeb2da : SUCCESS in 4m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/96041d50769446b88ebae96f7e4957db : SUCCESS in 4m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9a8d5cb4efb24debbde2f1142f6fbf1c : SUCCESS in 6m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/49ec06703623479fb38c5c9c7d25b2ff : FAILURE in 3m 56s