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cc80106cb5
When encountering multiple mutable borrows, suggest cloning and adding
derive annotations as needed.
```
error[E0596]: cannot borrow `sm.x` as mutable, as it is behind a `&` reference
--> $DIR/accidentally-cloning-ref-borrow-error.rs:32:9
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LL | foo(&mut sm.x);
| ^^^^^^^^^ `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`
--> $DIR/accidentally-cloning-ref-borrow-error.rs:31:21
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LL | let mut sm = sr.clone();
| ^^^^^^^
help: consider annotating `Str` with `#[derive(Clone)]`
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LL + #[derive(Clone)]
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();
| ++++++++++
```
```
error[E0596]: cannot borrow `*inner` as mutable, as it is behind a `&` reference
--> $DIR/issue-91206.rs:14:5
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LL | inner.clear();
| ^^^^^ `inner` is a `&` reference, so the data it refers to cannot be borrowed as mutable
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help: you can `clone` the `Vec<usize>` value and consume it, but this might not be your desired behavior
--> $DIR/issue-91206.rs:11:17
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LL | let inner = client.get_inner_ref();
| ^^^^^^^^^^^^^^^^^^^^^^
help: consider specifying this binding's type
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LL | let inner: &mut Vec<usize> = client.get_inner_ref();
| +++++++++++++++++
```
54 lines
1.8 KiB
Plaintext
54 lines
1.8 KiB
Plaintext
error[E0596]: cannot borrow `*rofl` as mutable, as it is behind a `&` reference
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--> $DIR/issue-85765-closure.rs:7:9
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LL | rofl.push(Vec::new());
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| ^^^^ `rofl` is a `&` reference, so the data it refers to cannot be borrowed as mutable
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help: you can `clone` the `Vec<Vec<i32>>` value and consume it, but this might not be your desired behavior
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--> $DIR/issue-85765-closure.rs:4:36
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LL | let rofl: &Vec<Vec<i32>> = &mut test;
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| ^^^^^^^^^
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help: consider changing this binding's type
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LL | let rofl: &mut Vec<Vec<i32>> = &mut test;
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| ~~~~~~~~~~~~~~~~~~
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error[E0594]: cannot assign to `*r`, which is behind a `&` reference
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--> $DIR/issue-85765-closure.rs:14:9
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LL | *r = 0;
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| ^^^^^^ `r` is a `&` reference, so the data it refers to cannot be written
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help: consider changing this to be a mutable reference
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LL | let r = &mut mutvar;
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| +++
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error[E0594]: cannot assign to `*x`, which is behind a `&` reference
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--> $DIR/issue-85765-closure.rs:21:9
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LL | *x = 1;
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| ^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
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help: consider changing this binding's type
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LL | let x: &mut usize = &mut{0};
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| ~~~~~~~~~~
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error[E0594]: cannot assign to `*y`, which is behind a `&` reference
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--> $DIR/issue-85765-closure.rs:28:9
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LL | *y = 1;
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| ^^^^^^ `y` is a `&` reference, so the data it refers to cannot be written
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help: consider changing this binding's type
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LL | let y: &mut usize = &mut(0);
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| ~~~~~~~~~~
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error: aborting due to 4 previous errors
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Some errors have detailed explanations: E0594, E0596.
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For more information about an error, try `rustc --explain E0594`.
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