1 error[E0658]: casting pointers to integers in constants is unstable (see issue #51910)
2 --> $DIR/issue-18294.rs:13:22
4 LL | const Y: usize = &X as *const u32 as usize; //~ ERROR is unstable
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^
7 = help: add #![feature(const_raw_ptr_to_usize_cast)] to the crate attributes to enable
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0658`.