error: Negation by multiplying with -1
  --> $DIR/neg_multiply.rs:40:5
   |
40 |     x * -1;
   |     ^^^^^^
   |
   = note: `-D clippy::neg-multiply` implied by `-D warnings`

error: Negation by multiplying with -1
  --> $DIR/neg_multiply.rs:42:5
   |
42 |     -1 * x;
   |     ^^^^^^

error: aborting due to 2 previous errors