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error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types
--> $DIR/return-cycle-2.rs:6:34
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LL | fn as_ref(_: i32, _: i32) -> _ {
| ^
| |
| not allowed in type signatures
| help: replace with the correct return type: `Token<&'static T>`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0121`.
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