Try turning that fedmsg_debug_loopback on for the autocloud backend.

inventory/group_vars/autocloud-backend

@@ -14,6 +14,10 @@ tcp_ports: [
 
 fas_client_groups: sysadmin-noc,sysadmin-fedimg
 
+## XXX - this is for test
+## XXX - turn this off when we're done.
+fedmsg_debug_loopback: true
+
 # These are consumed by a task in roles/fedmsg/base/main.yml
 fedmsg_certs:
 - service: shell