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error: ambiguous `+` in a type
--> $DIR/impl-fn-parsing-ambiguities.rs:4:27
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LL | fn a() -> impl Fn(&u8) -> impl Debug + '_ {
| ^^^^^^^^^^^^^^^ help: use parentheses to disambiguate: `(impl Debug + '_)`
error: ambiguous `+` in a type
--> $DIR/impl-fn-parsing-ambiguities.rs:10:24
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LL | fn b() -> impl Fn() -> impl Debug + Send {
| ^^^^^^^^^^^^^^^^^ help: use parentheses to disambiguate: `(impl Debug + Send)`
error: higher kinded lifetime bounds on nested opaque types are not supported yet
--> $DIR/impl-fn-parsing-ambiguities.rs:4:40
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LL | fn a() -> impl Fn(&u8) -> impl Debug + '_ {
| ^^
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note: lifetime declared here
--> $DIR/impl-fn-parsing-ambiguities.rs:4:19
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LL | fn a() -> impl Fn(&u8) -> impl Debug + '_ {
| ^
error: aborting due to 3 previous errors
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