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Permit `#[deprecated]` in stdlib
[rust.git] / src / test / ui / unboxed-closures / unboxed-closures-mutated-upvar-from-fn-closure.stderr
1 error[E0594]: cannot assign to `counter`, as it is a captured variable in a `Fn` closure
2   --> $DIR/unboxed-closures-mutated-upvar-from-fn-closure.rs:11:9
3    |
4 LL |   fn call<F>(f: F) where F : Fn() {
5    |                 - change this to accept `FnMut` instead of `Fn`
6 ...
7 LL |       call(|| {
8    |  _____----_-
9    | |     |
10    | |     expects `Fn` instead of `FnMut`
11 LL | |         counter += 1;
12    | |         ^^^^^^^^^^^^ cannot assign
13 LL | |
14 LL | |     });
15    | |_____- in this closure
16
17 error: aborting due to previous error
18
19 For more information about this error, try `rustc --explain E0594`.