How to Suppress Specific Warnings in Rust (#[allow(...)])

Compiler Errors

2026-04-17T12:05:42+00:00

Suppress specific Rust compiler warnings by adding the #[allow(...)] attribute above the relevant code item.

Add the #[allow(...)] attribute directly above the code item (function, struct, or block) to suppress specific compiler warnings for that scope.

#[allow(dead_code)]
fn unused_function() {
    // This function won't trigger a warning
}

#[allow(unused_variables)]
fn main() {
    let x = 5; // No warning about unused variable
}