Decision Workspace
rustowl vs ferrous-owl vs rental
Side-by-side comparison of Rust crates
50
rustowl
growingv0.3.4
Visualize Ownership and Lifetimes in Rust
43
ferrous-owl
experimentalv0.0.3
Visualize Ownership and Lifetimes in Rust
50
rental
growingv0.5.6
A macro to generate safe self-referential structs, plus premade types for common use cases.
Core Metrics
| rustowl | ferrous-owl | rental | |
|---|---|---|---|
| Health Score | 50 | 43 | 50 |
| Total Downloads | 10.3K | 99 | 2.6M |
| 30d Downloads | 104 | 6 | 118.3K |
| Dependents | 0 | 0 | 271 |
| Releases | 10 | 3 | 37 |
| Last Updated | 60d ago | 115d ago | 1791d ago |
| Age | 1y 1m | 3m | 9y 4m |
Health Breakdown
rustowl
Maintenance
15
Quality
11
Community
6
Popularity
5
Documentation
13
ferrous-owl
Maintenance
13
Quality
12
Community
6
Popularity
2
Documentation
10
rental
Maintenance
6
Quality
12
Community
13
Popularity
8
Documentation
11
Technical Details
| rustowl | ferrous-owl | rental | |
|---|---|---|---|
| Version | 0.3.4 | 0.0.3 | 0.5.6 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MPL-2.0 | MPL-2.0 | MIT/Apache-2.0 |
| Dependencies | 22 | 14 | 2 |
| Crate Size | 3.1MB | 58KB | 17KB |
| Features | 2 | 0 | 2 |
| Yanked % | 0.0% | 0.0% | 21.6% |
| Edition | 2024 | 2024 | — |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •rustowl leads with a health score of 50/100, but none of the options score above 80.
- •rental has the most downloads (2.6M), suggesting wider adoption.
- •rental is depended on by 271 crates — strongest ecosystem trust.
- •⚠ rental has not been updated in over a year.