error: expected `}`, found `,` --> $DIR/issue-54379.rs:9:22 | LL | MyStruct { .., Some(_) } => {}, | --^ | | | | | expected `}` | `..` must be at the end and cannot have a trailing comma error: expected `,` --> $DIR/issue-54379.rs:9:28 | LL | MyStruct { .., Some(_) } => {}, | -------- ^ | | | while parsing the fields for this pattern error: aborting due to 2 previous errors