error[E0366]: `Drop` impls cannot be specialized --> $DIR/issue-38868.rs:5:1 | LL | impl Drop for List { | ^^^^^^^^^^^^^^^^^^^^^^^ | = note: `i32` is not a generic parameter note: use the same sequence of generic lifetime, type and const parameters as the struct definition --> $DIR/issue-38868.rs:1:1 | LL | pub struct List { | ^^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0366`.