Prove You’re Worthy of Unsafe

~/d/my-code % cargo run Compiling my-code v0.1.0 (/home/lobo/devel/my-code) error[E0621]: please solve this Sudoku board before continuing: --> src/main.rs:2:5 | 2 | unsafe { | ^^^^^^ prove you're worthy of using `unsafe` 5 3 7 6 1 9 5 9 8 6 8 6 3 4 8 3 1 7 2 6 6 4 1 9 2 8 8 5 7 9 ~/d/my-code %

A terminal window shows a Rust project failing to compile because the programmer must solve a partially completed Sudoku board before using the unsafe block. The joke treats Rust’s strict safety rules like a gatekeeper demanding proof of worthiness, turning a programming error into an absurd puzzle challenge.

• @ithueti / 15818 2025-04-23