once_cell

v1.21.4crates.io· Rust

Single assignment cells and lazy values.

The verdict

Safe default. Widely trusted across the ecosystem, actively maintained.

Live from the crates.io registry · derived rules, not AI

How it scores

MaintenanceHealthy

PopularityTop 1%

SecurityClean

LicensePermissive

DepsZero deps

Maintenance

Last published 3 months ago.

Popularity

15M downloads / week

Security

No known advisories for this version (OSV).

License

Apache-2.0 OR MIT

Dependencies

No runtime dependencies

Recent releases