error: expected one of `,`, `.`, `?`, `}`, or an operator, found `second` --> $DIR/struct-initializer-comma.rs:12:9 | LL | let _ = Foo { | --- while parsing this struct LL | LL | first: true | - | | | expected one of `,`, `.`, `?`, `}`, or an operator | help: try adding a comma: `,` LL | second: 25 | ^^^^^^ unexpected token error[E0063]: missing field `second` in initializer of `Foo` --> $DIR/struct-initializer-comma.rs:9:13 | LL | let _ = Foo { | ^^^ missing `second` error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0063`.