Decision Workspace
clap-cargo vs target-spec vs vergen
Side-by-side comparison of Rust crates
66
clap-cargo
growingv0.18.3
Re-usable CLI flags for `cargo` plugins
77
target-spec
stablev3.5.7
Evaluate Cargo.toml target specifications
75
vergen
stablev9.1.0
Generate 'cargo:rustc-env' instructions via 'build.rs' for use in your code via the 'env!' macro
Core Metrics
| clap-cargo | target-spec | vergen | |
|---|---|---|---|
| Health Score | 66 | 77 | 75 |
| Total Downloads | 8.2M | 10.4M | 37.2M |
| 30d Downloads | 758.0K | 781.7K | 2.2M |
| Dependents | 1.4K | 302 | 4.4K |
| Releases | 31 | 46 | 126 |
| Last Updated | 157d ago | 56d ago | today |
| Age | 6y 11m | 6y | 11y 1m |
Health Breakdown
clap-cargo
Maintenance
12
Quality
16
Community
18
Popularity
8
Documentation
12
target-spec
Maintenance
17
Quality
19
Community
18
Popularity
8
Documentation
15
vergen
Maintenance
19
Quality
18
Community
15
Popularity
8
Documentation
15
Technical Details
| clap-cargo | target-spec | vergen | |
|---|---|---|---|
| Version | 0.18.3 | 3.5.7 | 9.1.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 6 | 8 | 13 |
| Crate Size | 15KB | 32KB | 33KB |
| Features | 4 | 3 | 7 |
| Yanked % | 0.0% | 2.2% | 6.3% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | 1.86 | 1.86 | 1.88.0 |
| Owners | 2 (team) | 3 (team) | 1 |
Links
Quick Verdict
- •target-spec leads with a health score of 77/100, but none of the options score above 80.
- •vergen has the most downloads (37.2M), suggesting wider adoption.
- •vergen is depended on by 4.4K crates — strongest ecosystem trust.
- •clap-cargo is pre-1.0 — API may change.