Decision Workspace
formally-io vs cvlr-asserts vs cvlr-nondet
Side-by-side comparison of Rust crates
41
formally-io
experimentalv0.2025.12
the open-source formal methods toolchain - input/output and parsing utilities
58
cvlr-asserts
growingv0.5.0
Asserts and assumes for post- and pre-conditions
58
cvlr-nondet
growingv0.5.0
Non-deterministic (i.e., symbolic) values
Core Metrics
| formally-io | cvlr-asserts | cvlr-nondet | |
|---|---|---|---|
| Health Score | 41 | 58 | 58 |
| Total Downloads | 207 | 17.4K | 17.1K |
| 30d Downloads | 68 | 2.1K | 2.1K |
| Dependents | 4 | 30 | 23 |
| Releases | 1 | 4 | 4 |
| Last Updated | 98d ago | 98d ago | 98d ago |
| Age | 3m | 1y | 1y |
Health Breakdown
formally-io
Maintenance
8
Quality
15
Community
7
Popularity
3
Documentation
8
cvlr-asserts
Maintenance
13
Quality
17
Community
10
Popularity
5
Documentation
13
cvlr-nondet
Maintenance
13
Quality
17
Community
10
Popularity
5
Documentation
13
Technical Details
| formally-io | cvlr-asserts | cvlr-nondet | |
|---|---|---|---|
| Version | 0.2025.12 | 0.5.0 | 0.5.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | non-standard | MIT | MIT |
| Dependencies | 5 | 1 | 1 |
| Crate Size | 25KB | 7KB | 3KB |
| Features | 2 | 3 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •cvlr-asserts leads with a health score of 58/100, but none of the options score above 80.