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error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types
--> $DIR/issue-80779.rs:10:28
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LL | pub fn g(_: T<'static>) -> _ {}
| ^ not allowed in type signatures
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help: replace with the correct return type
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LL - pub fn g(_: T<'static>) -> _ {}
LL + pub fn g(_: T<'static>) -> () {}
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error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types
--> $DIR/issue-80779.rs:5:29
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LL | pub fn f<'a>(val: T<'a>) -> _ {
| ^ not allowed in type signatures
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help: replace with the correct return type
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LL - pub fn f<'a>(val: T<'a>) -> _ {
LL + pub fn f<'a>(val: T<'a>) -> () {
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error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0121`.
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