error: expected `,`, or `}`, found keyword `fn` --> $DIR/fn-field-parse-error-ice.rs:4:16 | LL | inner : dyn fn () | ^ help: try adding a comma: `,` error: expected identifier, found keyword `fn` --> $DIR/fn-field-parse-error-ice.rs:4:17 | LL | struct Baz { | --- while parsing this struct LL | inner : dyn fn () | ^^ expected identifier, found keyword | help: escape `fn` to use it as an identifier | LL | inner : dyn r#fn () | ++ error[E0412]: cannot find type `dyn` in this scope --> $DIR/fn-field-parse-error-ice.rs:4:13 | LL | inner : dyn fn () | ^^^ not found in this scope error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0412`.