$ once_cell
v1.21.4Single assignment cells and lazy values.
Downloads: 753.1M
Recent: 113.6M
Versions: 67
Updated: March 12, 2026
Patch update: 1.21.3 → 1.21.4
$ DOWNLOADS TREND
563.4M753.1M
$ VERSION HISTORY
v1.21.4March 12, 2026
v1.21.3March 28, 2025
$ LINKS
$ INSTALL
cargo add once_cellOr add to Cargo.toml: once_cell = "1.21.4"