Decision Workspace
and_then_map_err vs resext vs meticulous
Side-by-side comparison of Rust crates
41
and_then_map_err
growingv1.0.0
Provides traits for chaining Result operations with different error types WITHOUT the need for intermediate map_err calls.
55
resext
experimentalv1.4.0
A simple, lightweight error handling crate for Rust
54
meticulous
growingv0.1.2
Result extension to add more meaning to unwrapping
Core Metrics
| and_then_map_err | resext | meticulous | |
|---|---|---|---|
| Health Score | 41 | 55 | 54 |
| Total Downloads | 1.4K | 612 | 350.3K |
| 30d Downloads | 4 | 194 | 12.5K |
| Dependents | 0 | 9 | 0 |
| Releases | 1 | 21 | 5 |
| Last Updated | 597d ago | 7d ago | 81d ago |
| Age | 1y 7m | 3m | 3y 5m |
Health Breakdown
and_then_map_err
Maintenance
1
Quality
19
Community
5
Popularity
4
Documentation
12
resext
Maintenance
20
Quality
13
Community
9
Popularity
3
Documentation
10
meticulous
Maintenance
12
Quality
17
Community
5
Popularity
7
Documentation
13
Technical Details
| and_then_map_err | resext | meticulous | |
|---|---|---|---|
| Version | 1.0.0 | 1.4.0 | 0.1.2 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✗ No |
| License | MIT | MIT | MIT/Apache-2.0 |
| Dependencies | 1 | 1 | 1 |
| Crate Size | 3KB | 4KB | 10KB |
| Features | 0 | 0 | 2 |
| Yanked % | 0.0% | 14.3% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | 1.80.0 | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •resext leads with a health score of 55/100, but none of the options score above 80.
- •meticulous has the most downloads (350.3K), suggesting wider adoption.
- •⚠ and_then_map_err has not been updated in over a year.
- •meticulous is pre-1.0 — API may change.