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error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
--> $DIR/borrowck-object-mutability.rs:19:5
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LL | fn borrowed_receiver(x: &Foo) {
| ---- help: consider changing this to be a mutable reference: `&mut dyn Foo`
LL | x.borrowed();
LL | x.borrowed_mut(); //~ ERROR cannot borrow
| ^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
error[E0596]: cannot borrow `*x` as mutable, as `x` is not declared as mutable
--> $DIR/borrowck-object-mutability.rs:29:5
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LL | fn owned_receiver(x: Box<Foo>) {
| - help: consider changing this to be mutable: `mut x`
LL | x.borrowed();
LL | x.borrowed_mut(); //~ ERROR cannot borrow
| ^ cannot borrow as mutable
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0596`.
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