error[E0133]: dereference of raw pointer is unsafe and requires unsafe function or block --> $DIR/unsafe-unstable-const-fn.rs:11:5 | LL | *a == b | ^^ dereference of raw pointer | = note: raw pointers may be null, dangling or unaligned; they can violate aliasing rules and cause data races: all of these are undefined behavior error: aborting due to previous error For more information about this error, try `rustc --explain E0133`.