error: usage of mem::forget on Drop type
  --> $DIR/mem_forget.rs:28:5
   |
28 |     memstuff::forget(six);
   |     ^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `-D clippy::mem-forget` implied by `-D warnings`

error: usage of mem::forget on Drop type
  --> $DIR/mem_forget.rs:31:5
   |
31 |     std::mem::forget(seven);
   |     ^^^^^^^^^^^^^^^^^^^^^^^

error: usage of mem::forget on Drop type
  --> $DIR/mem_forget.rs:34:5
   |
34 |     forgetSomething(eight);
   |     ^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 3 previous errors