error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:11:5
   |
LL |     drop(&SomeStruct);
   |     ^^^^^^^^^^^^^^^^^
   |
note: argument has type `&SomeStruct`
  --> $DIR/drop_ref.rs:11:10
   |
LL |     drop(&SomeStruct);
   |          ^^^^^^^^^^^
   = note: `-D clippy::drop-ref` implied by `-D warnings`

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:14:5
   |
LL |     drop(&owned1);
   |     ^^^^^^^^^^^^^
   |
note: argument has type `&SomeStruct`
  --> $DIR/drop_ref.rs:14:10
   |
LL |     drop(&owned1);
   |          ^^^^^^^

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:15:5
   |
LL |     drop(&&owned1);
   |     ^^^^^^^^^^^^^^
   |
note: argument has type `&&SomeStruct`
  --> $DIR/drop_ref.rs:15:10
   |
LL |     drop(&&owned1);
   |          ^^^^^^^^

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:16:5
   |
LL |     drop(&mut owned1);
   |     ^^^^^^^^^^^^^^^^^
   |
note: argument has type `&mut SomeStruct`
  --> $DIR/drop_ref.rs:16:10
   |
LL |     drop(&mut owned1);
   |          ^^^^^^^^^^^

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:20:5
   |
LL |     drop(reference1);
   |     ^^^^^^^^^^^^^^^^
   |
note: argument has type `&SomeStruct`
  --> $DIR/drop_ref.rs:20:10
   |
LL |     drop(reference1);
   |          ^^^^^^^^^^

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:23:5
   |
LL |     drop(reference2);
   |     ^^^^^^^^^^^^^^^^
   |
note: argument has type `&mut SomeStruct`
  --> $DIR/drop_ref.rs:23:10
   |
LL |     drop(reference2);
   |          ^^^^^^^^^^

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:26:5
   |
LL |     drop(reference3);
   |     ^^^^^^^^^^^^^^^^
   |
note: argument has type `&SomeStruct`
  --> $DIR/drop_ref.rs:26:10
   |
LL |     drop(reference3);
   |          ^^^^^^^^^^

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:31:5
   |
LL |     drop(&val);
   |     ^^^^^^^^^^
   |
note: argument has type `&T`
  --> $DIR/drop_ref.rs:31:10
   |
LL |     drop(&val);
   |          ^^^^

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:39:5
   |
LL |     std::mem::drop(&SomeStruct);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
note: argument has type `&SomeStruct`
  --> $DIR/drop_ref.rs:39:20
   |
LL |     std::mem::drop(&SomeStruct);
   |                    ^^^^^^^^^^^

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:91:13
   |
LL |             drop(println_and(&13)); // Lint, even if we only care about the side-effect, it's already in a block
   |             ^^^^^^^^^^^^^^^^^^^^^^
   |
note: argument has type `&i32`
  --> $DIR/drop_ref.rs:91:18
   |
LL |             drop(println_and(&13)); // Lint, even if we only care about the side-effect, it's already in a block
   |                  ^^^^^^^^^^^^^^^^

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:93:14
   |
LL |         3 if drop(println_and(&14)) == () => (), // Lint, idiomatic use is only in body of `Arm`
   |              ^^^^^^^^^^^^^^^^^^^^^^
   |
note: argument has type `&i32`
  --> $DIR/drop_ref.rs:93:19
   |
LL |         3 if drop(println_and(&14)) == () => (), // Lint, idiomatic use is only in body of `Arm`
   |                   ^^^^^^^^^^^^^^^^

error: calls to `std::mem::drop` with a reference instead of an owned value. Dropping a reference does nothing
  --> $DIR/drop_ref.rs:94:14
   |
LL |         4 => drop(&2),                           // Lint, not a fn/method call
   |              ^^^^^^^^
   |
note: argument has type `&i32`
  --> $DIR/drop_ref.rs:94:19
   |
LL |         4 => drop(&2),                           // Lint, not a fn/method call
   |                   ^^

error: aborting due to 12 previous errors