Static rustc_ap_rustc_lint_defs::builtin::UNUSED_VARIABLES

pub static UNUSED_VARIABLES: &Lint

The unused_variables lint detects variables which are not used in any way.

Example

let x = 5;

{{produces}}

Explanation

Unused variables may signal a mistake or unfinished code. To silence the warning for the individual variable, prefix it with an underscore such as _x.