error[E0308]: mismatched types --> $DIR/issue-61106.rs:3:9 | LL | foo(x.clone()); | --- ^^^^^^^^^ expected `&str`, found `String` | | | arguments to this function are incorrect | note: function defined here --> $DIR/issue-61106.rs:6:4 | LL | fn foo(_: &str) {} | ^^^ ------- help: consider borrowing here | LL | foo(&x.clone()); | + error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0308`.