docs(rivet): comparison targets — spacewasm + DLR-FT (safety-critical Rust interpreter field) - #414
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…ewasm, DLR-FT) Land REQ_ENGINE_COMPARISON: benchmark + differentially validate kiln against its true peers — the safety-critical Rust WebAssembly interpreters — besides the wasmtime JIT. - NASA spacewasm (flight-compliant Rust interpreter for spacecraft; deterministic memory, streaming, CoreMark, libfuzzer). - DLR-FT/wasm-interpreter (minimal in-place Rust interpreter for avionics, DO-178C/DO-332; passes full WAST minus unfinished proposals; fuel halt/refill/ resume mirroring kiln; live migration). NASA's spacewasm reqs derive from it. Two workstreams: (1) use both as additional differential oracles alongside wasmtime (extends SR-35/#401 — Rust + embeddable, peer-engine agreement is high-signal); (2) a competitive matrix on conformance / perf / memory / resumable-fuel AND the verification-evidence axis where kiln leads (Verus + Lean proofs, witness MC/DC on real Wasm, sigil attestation, rivet traceability). Outcompete = lead on verification evidence while matching/beating on conformance + determinism. Sharpens #283 positioning. derives-from SR-35. Issue #413. Trace: skip
…OMPARISON
The differential set is now {kiln, wasmtime, spacewasm, DLR-FT, WasmRef-Isabelle}
with tiered signal: WasmRef-Isabelle (PLDI 2023) is the machine-checked GOLD
oracle (a kiln-only disagreement is a correctness bug), the safety-critical Rust
peers are cheap cross-checks, wasmtime is the JIT baseline. Per SR-35, the
verified leg is load-bearing — an interpreter you also wrote is not its own
oracle.
Trace: skip
🔍 Build Diagnostics ReportSummary
🎯 Impact AnalysisIssues in Files You Modified
Cascading Issues (Your Changes Breaking Other Files)
✅ No Issues DetectedPerfect! Your changes don't introduce any new errors or warnings, and don't break any existing code. 📊 Full diagnostic data available in workflow artifacts 🔧 To reproduce locally: # Install cargo-kiln
cargo install --path cargo-kiln
# Analyze your changes
cargo-kiln build --output json --filter-severity error
cargo-kiln check --output json --filter-severity warning |
Codecov Report✅ All modified and coverable lines are covered by tests. 📢 Thoughts on this report? Let us know! |
avrabe
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Jul 11, 2026
… roadmap conflict) Additive conflict in roadmap-requirements.yaml: kept both REQ_NOSTD_INTERP (this branch) and REQ_ENGINE_COMPARISON (from #414 on main). Trace: skip
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Lands REQ_ENGINE_COMPARISON (roadmap-only). Tracks benchmarking + differentially validating kiln against its true peers — the safety-critical Rust WebAssembly interpreters — besides the wasmtime JIT (the "unverified TCB" foil of #283).
spacewasmDLR-FT/wasm-interpreterTwo workstreams:
"Outcompete" = lead decisively on verification evidence while matching or beating on conformance + determinism.
derives-from SR-35;rivet validate= 0 errors. Tracks #413.🤖 Generated with Claude Code