rust/tests/ui/borrowck/mut-borrow-of-mut-ref.stderr
2023-01-11 09:32:08 +00:00

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error[E0596]: cannot borrow `b` as mutable, as it is not declared as mutable
--> $DIR/mut-borrow-of-mut-ref.rs:4:10
|
LL | pub fn f(b: &mut i32) {
| ^ not mutable
...
LL | h(&mut b);
| ------ cannot borrow as mutable
...
LL | g(&mut &mut b);
| ------ cannot borrow as mutable
|
note: the binding is already a mutable borrow
--> $DIR/mut-borrow-of-mut-ref.rs:4:13
|
LL | pub fn f(b: &mut i32) {
| ^^^^^^^^
help: try removing `&mut` here
|
LL - h(&mut b);
LL + h(b);
|
help: try removing `&mut` here
|
LL - g(&mut &mut b);
LL + g(&mut b);
|
error[E0596]: cannot borrow `b` as mutable, as it is not declared as mutable
--> $DIR/mut-borrow-of-mut-ref.rs:17:12
|
LL | h(&mut &mut b);
| ^^^^^^ cannot borrow as mutable
|
note: the binding is already a mutable borrow
--> $DIR/mut-borrow-of-mut-ref.rs:16:13
|
LL | pub fn g(b: &mut i32) {
| ^^^^^^^^
help: try removing `&mut` here
|
LL - h(&mut &mut b);
LL + h(&mut b);
|
error[E0596]: cannot borrow `f` as mutable, as it is not declared as mutable
--> $DIR/mut-borrow-of-mut-ref.rs:34:5
|
LL | f.bar();
| ^^^^^^^ cannot borrow as mutable
|
help: consider making the binding mutable
|
LL | pub fn baz(mut f: &mut String) {
| +++
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0596`.