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    {
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    {
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        "role": null,
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    },
    {
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        "finished_monotonic_ns": 2005001170883930
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      "last_error": {
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        "failure_stage": "child_exit",
        "role": null,
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    },
    {
      "stream_id": "camera-c093c7f66edf595e953970de788efbaa",
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      "last_cleanup": {
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        "finished_monotonic_ns": 2005000876473883
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      "last_error": {
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        "failure_stage": "child_exit",
        "role": null,
        "message": "A pipeline role failed while processing frames."
      }
    }
  ],
  "crowd_measurement": "NOT RUN: child_exit during warmup",
  "retry": false
}