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``` error[E0499]: cannot borrow `foo` as mutable more than once at a time --> $DIR/suggest-split-at-mut.rs:13:18 | LL | let a = &mut foo[..2]; | --- first mutable borrow occurs here LL | let b = &mut foo[2..]; | ^^^ second mutable borrow occurs here LL | a[0] = 5; | ---- first borrow later used here | = help: use `.split_at_mut(position)` or similar method to obtain two mutable non-overlapping sub-slices ``` Address most of #58792. For follow up work, we should emit a structured suggestion for cases where we can identify the exact `let (a, b) = foo.split_at_mut(2);` call that is needed.
29 lines
1.1 KiB
Plaintext
29 lines
1.1 KiB
Plaintext
error[E0499]: cannot borrow `foo[_]` as mutable more than once at a time
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--> $DIR/suggest-split-at-mut.rs:4:13
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LL | let a = &mut foo[2];
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| ----------- first mutable borrow occurs here
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LL | let b = &mut foo[3];
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| ^^^^^^^^^^^ second mutable borrow occurs here
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LL | *a = 5;
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| ------ first borrow later used here
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= help: consider using `.split_at_mut(position)` or similar method to obtain two mutable non-overlapping sub-slices
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= help: consider using `.swap(index_1, index_2)` to swap elements at the specified indices
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error[E0499]: cannot borrow `foo` as mutable more than once at a time
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--> $DIR/suggest-split-at-mut.rs:13:18
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LL | let a = &mut foo[..2];
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| --- first mutable borrow occurs here
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LL | let b = &mut foo[2..];
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| ^^^ second mutable borrow occurs here
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LL | a[0] = 5;
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| ---- first borrow later used here
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= help: use `.split_at_mut(position)` or similar method to obtain two mutable non-overlapping sub-slices
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0499`.
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