error[E0133]: call to unsafe function `Pin::

::new_unchecked` is unsafe and requires unsafe function or block --> $DIR/coerce-unsafe-closure-to-unsafe-fn-ptr.rs:5:31 | LL | let _: unsafe fn() = || { ::std::pin::Pin::new_unchecked(&0_u8); }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function | = note: consult the function's documentation for information on how to avoid undefined behavior error: aborting due to previous error For more information about this error, try `rustc --explain E0133`.