rust/tests/ui/closures/issue-82438-mut-without-upv...

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error[E0596]: cannot borrow `c` as mutable, as it is not declared as mutable
--> $DIR/issue-82438-mut-without-upvar.rs:27:27
|
LL | A.f(participant_name, &mut c);
| ^^^^^^ cannot borrow as mutable
|
help: consider changing this to be mutable
|
LL | let mut c = |a, b, c, d| {};
| +++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0596`.