{
  "blocked": {
    "step": "setup: uv venv --python 3.12 .venv",
    "error": "scratch/setup.sh: 6: uv: Exec format error (exit 126)"
  },
  "code": null,
  "sha256": null,
  "params": null,
  "mechanism": "The requested mechanism models Vanilla virtual reserves and adjusts the attracting-side fee toward its modelled quote. It was not implemented because the required setup failed.",
  "source": null,
  "search": {
    "evaluations": 0,
    "best": null
  },
  "held_out": {
    "n": 0,
    "mean_diff": null,
    "se": null,
    "worst_5_seeds": []
  },
  "retail_edge_delta": null,
  "arb_edge_delta": null,
  "gas": {
    "max_ok": null,
    "init_max_ok": null,
    "oog": null
  },
  "notes": [
    "Pinned checkout succeeded at 6b6921f8d463314aa7c96234e1be25a25245f704 in test/scratch/amm-challenge.",
    "The supplied setup script was run once from the checkout root. The simulator wheel checksum passed; setup then failed when invoking uv.",
    "Stopped on setup failure as explicitly required. No neutral-equivalence check, CH calibration, search, held-out evaluation, or gas measurement ran. Null gas values mean unmeasured, not zero halts."
  ]
}