{
  "approach": "Retail-absence evidence: estimate fill share per step against lambdaHat with one EMA slot, then adjust fMid; grid the coefficient and decay against NP. Execution stopped at the mandatory setup failure.",
  "tried": [],
  "next": "Repair the runtime so the supplied Rust installer can resolve /proc/self/exe, then rerun the prescribed setup and reproduce CH and NP before tuning. No candidate has been frozen or promoted.",
  "code": null,
  "code_sha256": null,
  "delta": null,
  "score": {
    "seed_start": 0,
    "n": 0,
    "mean_edge": null,
    "se": null
  },
  "paired": {
    "reference": "NP",
    "seed_start": 800000,
    "n": 0,
    "mean_diff": null,
    "se": null,
    "worst": []
  },
  "seconds_per_simulation": null,
  "validate_ok": false,
  "blocked": {
    "step": "sh scratch/setup.sh: Rust installation via sh.rustup.rs, before Python environment installation, maturin build, or validation",
    "error": "Exit code 1. rustup output: warn: Unable to find /proc/self/exe. System architecture detection might be inaccurate. warn: Falling back to /bin/bash. info: downloading installer error: Unable to proceed. Could not locate working directory.: no /proc/self/exe available. Is /proc mounted?"
  },
  "citations": [],
  "execution": {
    "checkout_commit": "6b6921f8d463314aa7c96234e1be25a25245f704",
    "setup_runs": 1,
    "reproduction_n": 0,
    "tuning_n": 0,
    "fresh_measurement_n": 0,
    "validation_attempted": false,
    "notes": "No simulations, compilation, strategy validation, source research, or performance claims were completed. validate_ok=false means validation was not reached, not that a candidate failed validation."
  }
}