error[E0080]: evaluation of constant value failed
  --> $DIR/issue-43197.rs:6:20
   |
LL |     const X: u32 = 0 - 1;
   |                    ^^^^^ attempt to compute `0_u32 - 1_u32`, which would overflow

error[E0080]: evaluation of constant value failed
  --> $DIR/issue-43197.rs:8:24
   |
LL |     const Y: u32 = foo(0 - 1);
   |                        ^^^^^ attempt to compute `0_u32 - 1_u32`, which would overflow

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.