[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/6fee0f3839c24725ab23d34f98534d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9abe0dbfd41b4ec58dc3c45c7ef06022 : SUCCESS in 4m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b3d5c4747c0c4613af5ba63bf0b2527b : SUCCESS in 5m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2fbc1ee0478f44629a0abe82516b6204 : SUCCESS in 5m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/efdc51a43f6c411b8d4e13e49f646797 : FAILURE in 4m 35s