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 `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` 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