error[E0396]: raw pointers cannot be dereferenced in constants
  --> $DIR/E0396.rs:13:28
   |
LL | const VALUE: u8 = unsafe { *REG_ADDR }; //~ ERROR E0396
   |                            ^^^^^^^^^ dereference of raw pointer in constant

error: aborting due to previous error

For more information about this error, try `rustc --explain E0396`.