1 error: any use of this value will cause an error
2 --> $DIR/issue-51559.rs:4:33
4 LL | pub const FOO: usize = unsafe { BAR as usize };
5 | --------------------------------^^^^^^^^^^^^---
7 | "pointer-to-integer cast" needs an rfc before being allowed inside constants
9 = note: `#[deny(const_err)]` on by default
11 error: aborting due to previous error