| error[E0080]: the type `str` has an unknown layout | |
| --> $DIR/unknown-when-ptr-metadata-is-DST.rs:8:16 | |
| | | |
| LL | [(); { let _a: Option<&str> = None; 0 }]; | |
| | ^^ evaluation of `return_str::{constant#0}` failed here | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0080`. |