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error[E0596]: cannot borrow immutable borrowed content `*x` as mutable
--> $DIR/borrowck-object-mutability.rs:19:5
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17 | fn borrowed_receiver(x: &Foo) {
| ---- use `&mut Foo` here to make mutable
18 | x.borrowed();
19 | x.borrowed_mut(); //~ ERROR cannot borrow
| ^ cannot borrow as mutable
error[E0596]: cannot borrow immutable `Box` content `*x` as mutable
--> $DIR/borrowck-object-mutability.rs:29:5
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27 | fn owned_receiver(x: Box<Foo>) {
| - consider changing this to `mut x`
28 | x.borrowed();
29 | x.borrowed_mut(); //~ ERROR cannot borrow
| ^ cannot borrow as mutable
error: aborting due to 2 previous errors
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