{
  "trial": "source-baseline",
  "benchmark_completed": false,
  "first_explicit_error": "ValueError: Child status exceeds IPC bound.",
  "location": "app/channel_child.py:send_latest; repeated in terminal reporting",
  "camera": 5,
  "exit_code": -11,
  "terminal_received": false,
  "forced": false,
  "all_trial_children_reaped": true,
  "confirmed_defect": "Extended input_timeline export can exceed 64 KiB child status IPC budget",
  "native_signal_root_cause": "Not established; unclean interpreter teardown after status exception is a hypothesis",
  "correction": "Export at most 8 numeric samples and 8 KiB timeline; keep aggregate counters and IPC cap unchanged",
  "regression": "Python3.12 15 targeted tests PASS including status budget and process protection",
  "retry_basis": "Concrete diagnostic budget fix; source-baseline-r2 only, not full baseline repetition"
}