message: change i32 to u32 in wire create
diff: @@ -542,10 +542,10 @@ fn verify_range_check0_test_copy_constraints() {
  ),
  Err(CircuitGateError::CopyConstraint {
  typ: cs.gates[row].typ,
  - src: Wire::create(row as u32, col as u32),
  + src: Wire::create(row as i32, col as i32),
  dst: Wire::create(
  - (row as u32) + 3 - (row as u32),
  - 2 * (row as u32) + (col as u32) + 2
  + (row as i32) + 3 - (row as i32),
  + 2 * (row as i32) + (col as i32) + 2
  )
  })
  );
  @@ -925,8 +925,8 @@ fn verify_range_check1_test_copy_constraints() {
  ),
  Err(CircuitGateError::CopyConstraint {
  typ: GateType::Zero,
  - src: Wire::create(3, 2 * (row as u32) + (col as u32) + 2),
  - dst: Wire::create(row as u32, col as u32)
  + src: Wire::create(3, 2 * (row as i32) + (col as i32) + 2),
  + dst: Wire::create(row as i32, col as i32)
  })
  );
  }
  