Decision Workspace
output-tracker vs crates-index vs guppy
Side-by-side comparison of Rust crates
47
output-tracker
growingv0.1.1
Track and assert state of dependencies in state-based tests without mocks
71
crates-index
stablev3.13.0
Library for retrieving and interacting with the crates.io index
70
guppy
growingv0.17.25
Track and query Cargo dependency graphs.
Core Metrics
| output-tracker | crates-index | guppy | |
|---|---|---|---|
| Health Score | 47 | 71 | 70 |
| Total Downloads | 793 | 7.0M | 10.1M |
| 30d Downloads | 4 | 94.6K | 744.8K |
| Dependents | 0 | 769 | 1.3K |
| Releases | 2 | 101 | 74 |
| Last Updated | 138d ago | 41d ago | 56d ago |
| Age | 1y 1m | 10y 10m | 6y 4m |
Health Breakdown
output-tracker
Maintenance
10
Quality
16
Community
6
Popularity
3
Documentation
12
crates-index
Maintenance
16
Quality
14
Community
18
Popularity
8
Documentation
15
guppy
Maintenance
16
Quality
12
Community
19
Popularity
8
Documentation
15
Technical Details
| output-tracker | crates-index | guppy | |
|---|---|---|---|
| Version | 0.1.1 | 3.13.0 | 0.17.25 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 4 | 24 | 25 |
| Crate Size | 27KB | 89KB | 147KB |
| Features | 3 | 7 | 3 |
| Yanked % | 0.0% | 39.6% | 4.0% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | 1.78.0 | 1.75 | 1.86 |
| Owners | 1 | 4 | 3 (team) |
Links
Quick Verdict
- •crates-index leads with a health score of 71/100, but none of the options score above 80.
- •guppy has the most downloads (10.1M), suggesting wider adoption.
- •guppy is depended on by 1.3K crates — strongest ecosystem trust.
- •output-tracker, guppy are pre-1.0 — API may change.