error[E0724]: `#[ffi_returns_twice]` may only be used on foreign functions | |
--> $DIR/ffi_returns_twice.rs:4:1 | |
| | |
LL | #[ffi_returns_twice] | |
| ^^^^^^^^^^^^^^^^^^^^ | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0724`. |