error: using `clone` on type `i32` which implements the `Copy` trait
  --> $DIR/clone_on_copy.rs:23:5
   |
LL |     42.clone();
   |     ^^^^^^^^^^ help: try removing the `clone` call: `42`
   |
   = note: `-D clippy::clone-on-copy` implied by `-D warnings`

error: using `clone` on type `i32` which implements the `Copy` trait
  --> $DIR/clone_on_copy.rs:27:5
   |
LL |     (&42).clone();
   |     ^^^^^^^^^^^^^ help: try dereferencing it: `*(&42)`

error: using `clone` on type `i32` which implements the `Copy` trait
  --> $DIR/clone_on_copy.rs:30:5
   |
LL |     rc.borrow().clone();
   |     ^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*rc.borrow()`

error: using `clone` on type `char` which implements the `Copy` trait
  --> $DIR/clone_on_copy.rs:36:14
   |
LL |     is_ascii('z'.clone());
   |              ^^^^^^^^^^^ help: try removing the `clone` call: `'z'`

error: using `clone` on type `i32` which implements the `Copy` trait
  --> $DIR/clone_on_copy.rs:40:14
   |
LL |     vec.push(42.clone());
   |              ^^^^^^^^^^ help: try removing the `clone` call: `42`

error: aborting due to 5 previous errors