I'm certainly no expert on reviewing traffic logs in Junos but the below appears to indicate it's not finding a suitable policy to pass the traffic through, even though I've tried a any to any on port any.
Jun 18 23:00:54 23:00:54.538980:CID-0:RT: policy search from zone untrust-> zone trust
Jun 18 23:00:54 23:00:54.538980:CID-0:RT: app 0, timeout 1800s, curr ageout 20s
Jun 18 23:00:54 23:00:54.538980:CID-0:RT:flow_first_policy_search: VPN firstpath permit check failed
Jun 18 23:00:54 23:00:54.538980:CID-0:RT: flow find session returns error.
Jun 18 23:00:54 23:00:54.538980:CID-0:RT: ----- flow_process_pkt rc 0x7 (fp rc -1)