Compilare: warning: struct `Stack` is never constructed --> main.rs:6:8 | 6 | struct Stack { | ^^^^^ | = note: `#[warn(dead_code)]` on by default warning: associated function `new` is never used --> main.rs:12:14 | 12 | const fn new() -> Self { | ^^^ warning: associated function `push` is never used --> main.rs:19:8 | 19 | fn push(&mut self, value: u32) { | ^^^^ warning: associated function `pop` is never used --> main.rs:24:8 | 24 | fn pop(&mut self) { | ^^^ warning: associated function `peek` is never used --> main.rs:34:8 | 34 | fn peek(&self) -> Option<u32> { | ^^^^ warning: associated function `size` is never used --> main.rs:38:8 | 38 | fn size(&self) -> usize { | ^^^^ warning: 6 warnings emitted