allow(unused_variables) doesn't work on struct field bindings in patterns

[camsteffen]

I tried this code:

pub struct Foo {
    bar: u32,
    baz: u32,
}

pub fn test(foo: Foo) {
    let Foo {
        #[allow(unused_variables)]
        bar,
        #[allow(unused_variables)]
        baz,
    } = foo;
}

I expected to see this happen:

no lint

Instead, this happened:

unused_variables lint occurs even though it is allowed

Meta

rustc version 1.85.0

Playground