Incorrect compiler hint for method with (&self) and (&mut self) signature when multiple applicable items are found in scope

Code:

trait A {
    fn method(&self) {
        println!("A");
    }
}

trait B {
    fn method(&self) {
        println!("B");
    }
}

struct Empty {}

impl A for Empty {}
impl B for Empty {}

fn main() {
    Empty {}.method();
}

Playground

Error:

error[E0034]: multiple applicable items in scope
  --> src/main.rs:19:14
   |
19 |     Empty {}.method();
   |              ^^^^^^ multiple `method` found
   |
note: candidate #1 is defined in an impl of the trait `A` for the type `Empty`
  --> src/main.rs:2:5
   |
2  |     fn method(&self) {
   |     ^^^^^^^^^^^^^^^^
   = help: to disambiguate the method call, write `A::method(Empty {})` instead
note: candidate #2 is defined in an impl of the trait `B` for the type `Empty`
  --> src/main.rs:8:5
   |
8  |     fn method(&self) {
   |     ^^^^^^^^^^^^^^^^
   = help: to disambiguate the method call, write `B::method(Empty {})` instead

Should be A::method(&Empty {}) and B::method(&Empty {}).

UPD: the same problem occurs with (&mut self).

Rollup merge of rust-lang#67127 - estebank:disambiguate-suggestion, r…

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Incorrect compiler hint for method with (&self) and (&mut self) signature when multiple applicable items are found in scope #65635

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Incorrect compiler hint for method with (&self) and (&mut self) signature when multiple applicable items are found in scope #65635

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olegnn commented on Oct 21, 2019

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