1 error[E0004]: non-exhaustive patterns: `None` and `Some(_)` not covered
2 --> $DIR/E0004-2.rs:4:11
5 | ^ patterns `None` and `Some(_)` not covered
7 note: `Option<i32>` defined here
8 --> $SRC_DIR/core/src/option.rs:LL:COL
10 LL | / pub enum Option<T> {
12 LL | | #[lang = "None"]
13 LL | | #[stable(feature = "rust1", since = "1.0.0")]
17 LL | | Some(#[stable(feature = "rust1", since = "1.0.0")] T),
21 = note: the matched value is of type `Option<i32>`
22 help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms
25 LL + None | Some(_) => todo!(),
29 error: aborting due to previous error
31 For more information about this error, try `rustc --explain E0004`.