rust/tests/ui/async-await/issue-69446-fnmut-capture.stderr
2023-01-11 09:32:08 +00:00

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error: captured variable cannot escape `FnMut` closure body
--> $DIR/issue-69446-fnmut-capture.rs:19:17
|
LL | let mut x = Foo;
| ----- variable defined here
LL | bar(move || async {
| _______________-_^
| | |
| | inferred to be a `FnMut` closure
LL | | x.foo();
| | - variable captured here
LL | | });
| |_____^ returns an `async` block that contains a reference to a captured variable, which then escapes the closure body
|
= note: `FnMut` closures only have access to their captured variables while they are executing...
= note: ...therefore, they cannot allow references to captured variables to escape
error: aborting due to previous error