error: argument to `std::mem::size_of_val()` is a reference to a reference --> $DIR/size_of_ref.rs:13:5 | LL | size_of_val(&&x); | ^^^^^^^^^^^^^^^^ | = help: dereference the argument to `std::mem::size_of_val()` to get the size of the value instead of the size of the reference-type = note: `-D clippy::size-of-ref` implied by `-D warnings` error: argument to `std::mem::size_of_val()` is a reference to a reference --> $DIR/size_of_ref.rs:14:5 | LL | size_of_val(&y); | ^^^^^^^^^^^^^^^ | = help: dereference the argument to `std::mem::size_of_val()` to get the size of the value instead of the size of the reference-type error: argument to `std::mem::size_of_val()` is a reference to a reference --> $DIR/size_of_ref.rs:25:9 | LL | std::mem::size_of_val(&self) + (std::mem::size_of::<u8>() * self.data.capacity()) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = help: dereference the argument to `std::mem::size_of_val()` to get the size of the value instead of the size of the reference-type error: aborting due to 3 previous errors