error[E0080]: evaluation of constant value failed
  --> $DIR/const-eval-overflow-3.rs:20:11
   |
LL |     = [0; (i8::MAX + 1) as usize];
   |           ^^^^^^^^^^^^^ attempt to add with overflow

error[E0308]: mismatched types
  --> $DIR/const-eval-overflow-3.rs:20:7
   |
LL |     = [0; (i8::MAX + 1) as usize];
   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `128usize`, found `(i8::MAX + 1) as usize`
   |
   = note: expected array `[u32; 128]`
              found array `[u32; _]`

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0080, E0308.
For more information about an error, try `rustc --explain E0080`.