Decision Workspace
once_map vs nospin vs lock-free-static
Side-by-side comparison of Rust crates
64
once_map
growingv0.4.24
Single assignment and lazy maps
57
nospin
growingv0.2.4
Rust crate containing an embedded version of a Mutex which can be used in `no_std` projects which are single-threaded.
54
lock-free-static
growingv0.2.3
Lock-free static variables
Core Metrics
| once_map | nospin | lock-free-static | |
|---|---|---|---|
| Health Score | 64 | 57 | 54 |
| Total Downloads | 943.1K | 3.7K | 8.6K |
| 30d Downloads | 76.3K | 0 | 0 |
| Dependents | 153 | 0 | 3 |
| Releases | 30 | 8 | 7 |
| Last Updated | 40d ago | 375d ago | 115d ago |
| Age | 3y 11m | 1y | 2y 7m |
Health Breakdown
once_map
Maintenance
17
Quality
13
Community
12
Popularity
7
Documentation
15
nospin
Maintenance
14
Quality
18
Community
6
Popularity
4
Documentation
15
lock-free-static
Maintenance
10
Quality
16
Community
10
Popularity
5
Documentation
13
Technical Details
| once_map | nospin | lock-free-static | |
|---|---|---|---|
| Version | 0.4.24 | 0.2.4 | 0.2.3 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT/Apache-2.0 |
| Dependencies | 7 | 2 | 0 |
| Crate Size | 16KB | 26KB | 12KB |
| Features | 5 | 6 | 0 |
| Yanked % | 10.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | 1.65 | 1.85 | — |
| Owners | 1 | 1 | 2 |
Links
Quick Verdict
- •once_map leads with a health score of 64/100, but none of the options score above 80.
- •once_map is depended on by 153 crates — strongest ecosystem trust.
- •⚠ nospin has not been updated in over a year.