[Openstack-stable-maint] Stable check of openstack/networking-bagpipe for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/f5476fd770c640df9a61f58fcef0a5... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4340bcd02228498b814ababc777316b0 : SUCCESS in 6m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9bdcb240a0be4cd0a42a621b58475877 : SUCCESS in 8m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cf35eb30958e44499f1a584511ae1991 : FAILURE in 6m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/539aed3d8f2d433092efa52db3cf4c1e : SUCCESS in 6m 37s