Is Once Mut Safe?

Once Mut — Nerq Trust Score 48.2/100 (D grade). Score based on 2 independent trust signals. Last analyzed: 2026-03-25

Once Mut is a Rust crate with a Nerq Trust Score of 48.2/100 (D), based on 3 independent data dimensions. Last analyzed: 2026-03-25 Security: 90/100. Popularity: 0/100. Data sourced from crates.io registry, GitHub, NVD, and RustSec advisory database. Last updated: 2026-03-25. Machine-readable data (JSON).

Safety Guide: Once Mut

What is Once Mut?

Once Mut is a Rust crate — Safe mutable reference to static variable that can be obtained only once.

How to Verify Safety

Run cargo audit. Review on crates.io for activity.

You can also check the trust score via API: GET /v1/preflight?target=once_mut

Key Safety Concerns for Rust crate

When evaluating any Rust crate, watch for: dependency vulnerabilities, unsafe code, maintenance status.

Measured Signals

Once Mut has a Nerq Trust Score of 48/100 (D). This score is a composite of automated measurements of security, maintenance, community, and quality signals.

Key Takeaways

• Once Mut has a Trust Score of 48/100 (D).
• The score is a measured composite — it is not a suitability judgment. Evaluate the individual signals against your own requirements.
• Query the current measured values via the Nerq API.

Disclaimer: Nerq trust scores are automated measurements based on publicly available signals. They are not endorsements, verdicts, or guarantees of suitability. Always evaluate the signals against your own requirements.