error: expected identifier, found keyword `return` --> $DIR/issue-15980.rs:20:13 | LL | Err(ref e) if e.kind == io::EndOfFile { | ------------- while parsing this struct LL | //~^ NOTE while parsing this struct LL | return | ^^^^^^ expected identifier, found keyword error: expected one of `.`, `=>`, `?`, or an operator, found `_` --> $DIR/issue-15980.rs:25:9 | LL | } | - expected one of `.`, `=>`, `?`, or an operator here LL | //~^ NOTE expected one of `.`, `=>`, `?`, or an operator here LL | _ => {} | ^ unexpected token error[E0412]: cannot find type `IoResult` in module `io` --> $DIR/issue-15980.rs:14:16 | LL | let x: io::IoResult<()> = Ok(()); | ^^^^^^^^ did you mean `Result`? error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0412`.