Decision Workspace
cargo-crappy vs cargo-llvm-cov vs cargo-mutants
Side-by-side comparison of Rust crates
45
cargo-crappy
experimentalv0.1.2
CRAP metric analysis for Rust — clippy-style diagnostics for change-risk, complexity, coverage, and idiomatic code
58
cargo-llvm-cov
growingv0.8.7
Cargo subcommand to easily use LLVM source-based code coverage (-C instrument-coverage).
58
cargo-mutants
stablev27.1.0
Inject bugs and see if your tests catch them
Core Metrics
| cargo-crappy | cargo-llvm-cov | cargo-mutants | |
|---|---|---|---|
| Health Score | 45 | 58 | 58 |
| Total Downloads | 53 | 6.5M | 392.9K |
| 30d Downloads | 0 | 258.3K | 32.5K |
| Dependents | 0 | 300 | 6 |
| Releases | 3 | 122 | 71 |
| Last Updated | 51d ago | 62d ago | 41d ago |
| Age | 1m | 5y 5m | 4y 8m |
Health Breakdown
cargo-crappy
Maintenance
11
Quality
14
Community
6
Popularity
2
Documentation
12
cargo-llvm-cov
Maintenance
15
Quality
10
Community
13
Popularity
8
Documentation
12
cargo-mutants
Maintenance
17
Quality
15
Community
7
Popularity
7
Documentation
12
Technical Details
| cargo-crappy | cargo-llvm-cov | cargo-mutants | |
|---|---|---|---|
| Version | 0.1.2 | 0.8.7 | 27.1.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT | Apache-2.0 OR MIT | MIT |
| Dependencies | 3 | 22 | 49 |
| Crate Size | 30KB | 106KB | 244KB |
| Features | 0 | 0 | 0 |
| Yanked % | 0.0% | 2.5% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | 1.85 | 1.87 | 1.88 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •cargo-llvm-cov leads with a health score of 58/100, but none of the options score above 80.
- •cargo-llvm-cov is depended on by 300 crates — strongest ecosystem trust.
- •cargo-crappy, cargo-llvm-cov are pre-1.0 — API may change.