error: any use of this value will cause an error
  --> $DIR/dangling_raw_ptr.rs:1:1
   |
LL | / const FOO: *const u32 = {
LL | |     let x = 42;
LL | |     &x
LL | | };
   | |__^ encountered dangling pointer in final constant
   |
   = note: `#[deny(const_err)]` on by default

error: aborting due to previous error