File: index-mut-help-with-impl.rs

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rustc 1.88.0%2Bdfsg1-1
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// When mutably indexing a type that implements `Index` and `IndexMut` but
// `Index::index` is being used specifically, the normal special help message
// should not mention a missing `IndexMut` impl.

fn main() {
    use std::ops::Index;

    let v = String::from("dinosaur");
    Index::index(&v, 1..2).make_ascii_uppercase(); //~ ERROR
}