Is Proc Macro2 Safe?
Proc Macro2 — Nerq Trust Score 63.2/100 (C+ grade). Score based on 2 independent trust signals. Last analyzed: 2026-04-12
Proc Macro2 is a Rust crate with a Nerq Trust Score of 63.2/100 (C+), based on 3 independent data dimensions. Last analyzed: 2026-04-12 Security: 90/100. Popularity: 100/100. Data sourced from crates.io registry, GitHub, NVD, and RustSec advisory database. Last updated: 2026-04-12. Machine-readable data (JSON).
Is Proc Macro2 safe?
Trust Score Breakdown — Proc Macro2 has a Nerq Trust Score of 63.2/100 (C+). Measured across 2 independent trust signals (as of 2026-04-12).
What is Proc Macro2's trust score?
Proc Macro2 has a Nerq Trust Score of 63.2/100, earning a C+ grade. This score is based on 2 independently measured dimensions including security, maintenance, and community adoption.
What are the key security findings for Proc Macro2?
Proc Macro2's strongest signal is popularity at 100/100. No known vulnerabilities have been detected.
What is Proc Macro2 and who maintains it?
| Author | Unknown |
| Category | Rust Crates |
| Source | N/A |
Similar Crates by Trust Score
Safety Guide: Proc Macro2
What is Proc Macro2?
Proc Macro2 is a Rust crate — A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case..
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=proc-macro2
Key Safety Concerns for Rust crate
When evaluating any Rust crate, watch for: dependency vulnerabilities, unsafe code, maintenance status.
Measured Signals
Proc Macro2 has a Nerq Trust Score of 63/100 (C+). This score is a composite of automated measurements of security, maintenance, community, and quality signals.
Key Takeaways
- Proc Macro2 has a Trust Score of 63/100 (C+).
- 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.
Detailed Score Analysis
| Dimension | Score |
|---|---|
| Security | 90/100 |
| Maintenance | 50/100 |
| Popularity | 100/100 |
| Quality | 40/100 |
| Community | 35/100 |
Based on 5 dimensions. Data from crates.io registry, GitHub, NVD, and RustSec advisory database.
What data does Proc Macro2 collect?
Proc Macro2 is a Rust crate maintained by Unknown. It receives approximately 1,016,635,703 weekly downloads.
As a development package, Proc Macro2 does not directly collect end-user personal data. However, applications built with it may collect data depending on implementation. Privacy score: 80/100.
Review the package's dependencies for potential supply chain risks. Run your package manager's audit command regularly.
Full analysis: Proc Macro2 Privacy Report · Privacy review
Is Proc Macro2 secure?
Security score: 90/100. Proc Macro2 has 0 known vulnerabilities (CVEs) in the National Vulnerability Database. This is a clean record.
License information not available. Open-source packages allow independent security review of the source code.
Run your package manager's audit command (`npm audit`, `pip audit`, `cargo audit`) to check for known vulnerabilities in your dependency tree.
Full analysis: Proc Macro2 Security Report
How we calculated this score
Proc Macro2's trust score of 63.2/100 (C+) is computed from crates.io registry, GitHub, NVD, and RustSec advisory database. The score reflects 5 independent dimensions: security (90/100), maintenance (50/100), popularity (100/100), quality (40/100), community (35/100). Each dimension is weighted equally to produce the composite trust score.
Nerq analyzes over 7.5 million entities across 26 registries using the same methodology, enabling direct cross-entity comparison. Scores are updated continuously as new data becomes available.
Signals last measured on April 12, 2026. Data version: 1.0.
Full methodology documentation · Machine-readable data (JSON API)
Frequently Asked Questions
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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.