error: expected identifier, found keyword `let` --> $DIR/try-block-in-edition2015.rs:6:9 | LL | let try_result: Option<_> = try { | --- while parsing this struct LL | //~^ ERROR expected struct, variant or union type, found macro `try` LL | let x = 5; //~ ERROR expected identifier, found keyword | ^^^ expected identifier, found keyword error[E0574]: expected struct, variant or union type, found macro `try` --> $DIR/try-block-in-edition2015.rs:4:33 | LL | let try_result: Option<_> = try { | ^^^ did you mean `try!(...)`? error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0574`.