| error[E0005]: refutable pattern in local binding: `Err(_)` not covered |
| --> $DIR/feature-gate-exhaustive-patterns.rs:8:9 |
| | |
| LL | let Ok(_x) = foo(); |
| | ^^^^^^ pattern `Err(_)` not covered |
| | |
| ::: $SRC_DIR/libcore/result.rs:LL:COL |
| | |
| LL | Err(#[stable(feature = "rust1", since = "1.0.0")] E), |
| | --- not covered |
| | |
| = note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant |
| = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html |
| = note: the matched value is of type `std::result::Result<u32, !>` |
| help: you might want to use `if let` to ignore the variant that isn't matched |
| | |
| LL | if let Ok(_x) = foo() { /* */ } |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0005`. |
