{
  "checker": {
    "details": {
      "argv": [
        "<host-path>",
        "bench/benchmark_checkpoints.py",
        "--n-saves",
        "2",
        "--methods",
        "moonclip",
        "--output-dir",
        "<host-path>"
      ],
      "kind": "cli",
      "needs_browser": false,
      "needs_credentials": false,
      "returncode": 0,
      "scope": "product operation",
      "stderr": "",
      "stdout": "\n============================================================\n  Checkpoint Benchmark\n============================================================\n  Model:      MiniGPT medium (41,718,784 params)\n  Saves:      2 (every 50 steps)\n  Retention:  keep 3 checkpoints\n  Device:     cpu\n  Methods:    moonclip\n============================================================\n\n  [moonclip] running... done (293.6ms total, 2 ckpts on disk)\n[excerpt truncated]",
      "working": true
    },
    "status": "PASS"
  },
  "deviations": [
    "README 'Installation' says pip install moonclip; the pinned commit a856d0d was not built from source (needs maturin and a Rust 1.98.1 toolchain). The PyPI wheel 0.2.3 was used instead.",
    "Guest had no ensurepip: python3 -m venv failed; installed python3.12-venv and python3-pip via apt.",
    "torch was installed from the CPU index, since the benchmark needs torch and the guest has no GPU.",
    "Did not run cargo test, clippy, pytest or other CI suites, per task instructions."
  ],
  "main_blocker": null,
  "operation": "Ran bench/benchmark_checkpoints.py (README 'Benchmarks' section) for moonclip: 2 saves of MiniGPT 41.7M params, reloaded and verified (OK check passed).",
  "operation_scope": "Moonclip checkpoint save/load on CPU only, moonclip method only (no torch.save/safetensors comparison runs). Installed from PyPI wheel, not built from the pinned commit.",
  "outcome": "working",
  "steps": [
    "apt-get install python3.12-venv python3-pip (after apt-get update)",
    "python3 -m venv <host-path>",
    "pip install --upgrade pip",
    "pip install moonclip (0.2.3 wheel, README Installation)",
    "pip install torch --index-url https://download.pytorch.org/whl/cpu (2.14.1+cpu)",
    "pip install safetensors accelerate pytorch-lightning (benchmark usage line)",
    "python bench/benchmark_checkpoints.py --n-saves 2 --methods moonclip --output-dir .../.coldpass/bench_out"
  ],
  "stuck_step": null,
  "suggested_fix": null
}