| error[E0005]: refutable pattern in `for` loop binding: `None` not covered |
| --> $DIR/E0297.rs:4:9 |
| | |
| LL | for Some(x) in xs {} |
| | ^^^^^^^ pattern `None` not covered |
| | |
| note: `Option<i32>` defined here |
| --> $SRC_DIR/core/src/option.rs:LL:COL |
| | |
| LL | / pub enum Option<T> { |
| LL | | /// No value. |
| LL | | #[lang = "None"] |
| LL | | #[stable(feature = "rust1", since = "1.0.0")] |
| LL | | None, |
| | | ^^^^ not covered |
| ... | |
| LL | | Some(#[stable(feature = "rust1", since = "1.0.0")] T), |
| LL | | } |
| | |_- |
| = note: the matched value is of type `Option<i32>` |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0005`. |