rust/tests/ui/borrowck/immut-function-arguments.st...

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error[E0594]: cannot assign to `*y`, as `y` is not declared as mutable
--> $DIR/immut-function-arguments.rs:2:5
|
LL | *y = 5;
| ^^^^^^ cannot assign
|
help: consider changing this to be mutable
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LL | fn f(mut y: Box<isize>) {
| +++
error[E0594]: cannot assign to `*q`, as `q` is not declared as mutable
--> $DIR/immut-function-arguments.rs:6:35
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LL | let _frob = |q: Box<isize>| { *q = 2; };
| ^^^^^^ cannot assign
|
help: consider changing this to be mutable
|
LL | let _frob = |mut q: Box<isize>| { *q = 2; };
| +++
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0594`.