mirror of https://github.com/rust-lang/rust
31 lines
1021 B
Plaintext
31 lines
1021 B
Plaintext
error[E0596]: cannot borrow `sm.x` as mutable, as it is behind a `&` reference
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--> $DIR/accidentally-cloning-ref-borrow-error.rs:32:9
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LL | foo(&mut sm.x);
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| ^^^^^^^^^ `sm` is a `&` reference, so the data it refers to cannot be borrowed as mutable
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help: `Str` doesn't implement `Clone`, so this call clones the reference `&Str`
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--> $DIR/accidentally-cloning-ref-borrow-error.rs:31:21
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LL | let mut sm = sr.clone();
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| ^^^^^^^
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help: consider annotating `Str` with `#[derive(Clone)]`
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LL + #[derive(Clone)]
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LL | struct Str {
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help: consider specifying this binding's type
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LL | let mut sm: &mut Str = sr.clone();
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| ++++++++++
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error[E0596]: cannot borrow data in a `&` reference as mutable
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--> $DIR/accidentally-cloning-ref-borrow-error.rs:37:9
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LL | bar(&mut xm);
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| ^^^^^^^ cannot borrow as mutable
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0596`.
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