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