mirror of https://github.com/rust-lang/rust
32 lines
1006 B
Plaintext
32 lines
1006 B
Plaintext
error[E0384]: cannot assign twice to immutable variable `x`
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--> $DIR/mut-pattern-internal-mutability.rs:5:5
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LL | let &mut x = foo;
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| - first assignment to `x`
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LL | x += 1;
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| ^^^^^^ cannot assign twice to immutable variable
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help: consider making this binding mutable
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LL | let &mut mut x = foo;
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| ~~~~~
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help: to modify the original value, take a borrow instead
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LL | let &mut ref mut x = foo;
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| ~~~~~~~~~
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error[E0506]: cannot assign to `*foo` because it is borrowed
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--> $DIR/mut-pattern-internal-mutability.rs:13:5
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LL | let &mut ref x = foo;
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| ----- `*foo` is borrowed here
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LL | *foo += 1;
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| ^^^^^^^^^ `*foo` is assigned to here but it was already borrowed
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LL | drop(x);
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| - borrow later used here
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0384, E0506.
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For more information about an error, try `rustc --explain E0384`.
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