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+error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+ --> $DIR/self-infer.rs:4:16
+ |
+LL | fn f(self: _) {}
+ | ^ not allowed in type signatures
+ |
+help: use type parameters instead
+ |
+LL | fn f<T>(self: T) {}
+ | +++ ~
+
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+ --> $DIR/self-infer.rs:5:17
+ |
+LL | fn g(self: &_) {}
+ | ^ not allowed in type signatures
+ |
+help: use type parameters instead
+ |
+LL | fn g<T>(self: &T) {}
+ | +++ ~
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0121`.