error[E0308]: mismatched types --> $DIR/coerce-suggestions.rs:7:20 | LL | let x: usize = String::new(); | ----- ^^^^^^^^^^^^^ expected `usize`, found `String` | | | expected due to this error[E0308]: mismatched types --> $DIR/coerce-suggestions.rs:9:19 | LL | let x: &str = String::new(); | ---- ^^^^^^^^^^^^^ expected `&str`, found `String` | | | expected due to this | help: consider borrowing here | LL | let x: &str = &String::new(); | + error[E0308]: mismatched types --> $DIR/coerce-suggestions.rs:12:10 | LL | test(&y); | ---- ^^ types differ in mutability | | | arguments to this function are incorrect | = note: expected mutable reference `&mut String` found reference `&String` note: function defined here --> $DIR/coerce-suggestions.rs:1:4 | LL | fn test(_x: &mut String) {} | ^^^^ --------------- error[E0308]: mismatched types --> $DIR/coerce-suggestions.rs:14:11 | LL | test2(&y); | ----- ^^ types differ in mutability | | | arguments to this function are incorrect | = note: expected mutable reference `&mut i32` found reference `&String` note: function defined here --> $DIR/coerce-suggestions.rs:3:4 | LL | fn test2(_x: &mut i32) {} | ^^^^^ ------------ error[E0308]: mismatched types --> $DIR/coerce-suggestions.rs:17:9 | LL | s = format!("foo"); | ^^^^^^^^^^^^^^ expected `&mut String`, found `String` | = note: this error originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 5 previous errors For more information about this error, try `rustc --explain E0308`.