src/test/ui/issues/issue-17458.stderr

   1 error[E0658]: casting pointers to integers in statics is unstable
   2   --> $DIR/issue-17458.rs:1:28
   3    |
   4 LL | static X: usize = unsafe { core::ptr::null::<usize>() as usize };
   5    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   6    |
   7    = note: see issue #51910 <https://github.com/rust-lang/rust/issues/51910> for more information
   8    = help: add `#![feature(const_raw_ptr_to_usize_cast)]` to the crate attributes to enable
   9
  10 error: aborting due to previous error
  11
  12 For more information about this error, try `rustc --explain E0658`.