| warning: the feature `never_patterns` is incomplete and may not be safe to use and/or cause compiler crashes |
| --> $DIR/never-pattern-is-a-read.rs:3:24 |
| | |
| LL | #![feature(never_type, never_patterns)] |
| | ^^^^^^^^^^^^^^ |
| | |
| = note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information |
| = note: `#[warn(incomplete_features)]` on by default |
| |
| error[E0133]: access to union field is unsafe and requires unsafe function or block |
| --> $DIR/never-pattern-is-a-read.rs:12:16 |
| | |
| LL | let U { a: ! } = u; |
| | ^ access to union field |
| | |
| = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior |
| |
| error: aborting due to 1 previous error; 1 warning emitted |
| |
| For more information about this error, try `rustc --explain E0133`. |
