error[E0308]: mismatched types --> $DIR/ranged-ctor-as-fn-ptr.rs:8:40 | LL | let x: fn(u8) -> NonZeroAndOneU8 = NonZeroAndOneU8; | ------------------------- ^^^^^^^^^^^^^^^ expected normal fn, found unsafe fn | | | expected due to this | = note: expected fn pointer `fn(_) -> NonZeroAndOneU8` found struct constructor `unsafe fn(_) -> NonZeroAndOneU8 {NonZeroAndOneU8}` = note: unsafe functions cannot be coerced into safe function pointers error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0308`.