{
  "schema": 1,
  "slug": "tokio",
  "title": "tokio",
  "description": "Asynchronous runtime for Rust.",
  "status": "early measurement",
  "claim_eligible": false,
  "recorded_on": "2026-10-05",
  "reviewed_on": "2026-10-06",
  "repository": "https://github.com/tokio-rs/tokio",
  "source_commit": "9bc516aee195af7cf37cd79c7a35c4a889501ff9",
  "toolchain": "1.98.0",
  "command": "cargo test --workspace --features full",
  "state": "cold",
  "sample_count_per_side": 1,
  "interval": "historical command-to-outcome",
  "lathe": {
    "duration_ms": 137046,
    "machine": "lathe-8cpu \u00b7 8 vCPU / 32 GiB",
    "outcome": "succeeded",
    "cache": "No restored Cargo home, target directory or build cache."
  },
  "baseline": {
    "duration_ms": 147371,
    "machine": "GitHub-hosted \u00b7 8 vCPU / 32 GB",
    "outcome": "succeeded",
    "cache": "No cache restore step, rust-cache or sccache."
  },
  "limitations": [
    "One paired observation (n = 1 per side). No percentiles, repeatability estimate or warm-state measurement.",
    "Historical command-to-outcome boundary: the Lathe client invocation and hosted command steps are not the newer full time-to-result boundary.",
    "Both sides declare 8 vCPU and 32 GB-class memory. There is no committed lockfile or independently verified matching resolved dependency set.",
    "Different host CPUs and environments. Matching a vCPU count does not match per-core performance.",
    "One Lathe host; no fleet, saturation or concurrency claim.",
    "The underlying evidence bundle is retained internally. This download is an allowlisted summary, not the complete original raw evidence."
  ],
  "source_record_sha256": "e48bb530dd3c3ca62f2560a4cf46a188c1749d38f41f7423afae1fdad692e517",
  "summary_note": "Timing fields copied from a retained schema-1 record. Historical cost-model values, job identifiers, internal URLs and host metadata are intentionally excluded. No customer price or current-release performance claim."
}