// we convert the move in the comparison statement to a copy.
// unwrap is safe as we know this statement is an assign
- let box (_, rhs) = bb.statements[opt.bin_op_stmt_idx].kind.as_assign_mut().unwrap();
+ let (_, rhs) = bb.statements[opt.bin_op_stmt_idx].kind.as_assign_mut().unwrap();
use Operand::*;
match rhs {