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`
   = help: to override `-D warnings` add `#[allow(clippy::clone_on_copy)]`

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 `u32` which implements the `Copy` trait
  --> $DIR/clone_on_copy.rs:33:5
   |
LL |     x.clone().rotate_left(1);
   |     ^^^^^^^^^ help: try removing the `clone` call: `x`

error: using `clone` on type `i32` which implements the `Copy` trait
  --> $DIR/clone_on_copy.rs:47:5
   |
LL |     m!(42).clone();
   |     ^^^^^^^^^^^^^^ help: try removing the `clone` call: `m!(42)`

error: using `clone` on type `[u32; 2]` which implements the `Copy` trait
  --> $DIR/clone_on_copy.rs:57:5
   |
LL |     x.clone()[0];
   |     ^^^^^^^^^ help: try dereferencing it: `(*x)`

error: using `clone` on type `char` which implements the `Copy` trait
  --> $DIR/clone_on_copy.rs:67:14
   |
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:71:14
   |
LL |     vec.push(42.clone());
   |              ^^^^^^^^^^ help: try removing the `clone` call: `42`

error: using `clone` on type `Option<i32>` which implements the `Copy` trait
  --> $DIR/clone_on_copy.rs:75:17
   |
LL |     let value = opt.clone()?; // operator precedence needed (*opt)?
   |                 ^^^^^^^^^^^ help: try dereferencing it: `(*opt)`

error: aborting due to 9 previous errors