error[E0133]: call to unsafe function is unsafe and requires unsafe function or block --> $DIR/unsafe-fn-called-from-safe.rs:7:5 | LL | f(); | ^^^ call to unsafe function | = note: consult the function's documentation for information on how to avoid undefined behavior error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0133`.