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error[E0308]: mismatched types
--> $DIR/issue-101280.rs:6:5
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LL | fn f<'r>(f: fn(Cell<(&'r i32, &i32)>)) -> Ty {
| -- expected `for<'r> fn(Cell<(&'r i32, &'r i32)>)` because of return type
LL | f
| ^ one type is more general than the other
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= note: expected fn pointer `for<'r> fn(Cell<(&'r i32, &'r i32)>)`
found fn pointer `for<'a> fn(Cell<(&'r i32, &'a i32)>)`
error: aborting due to previous error
For more information about this error, try `rustc --explain E0308`.
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