1 error[E0412]: cannot find type `Nonexistent` in this scope
2 --> $DIR/drop-on-non-struct.rs:9:15
4 LL | impl Drop for Nonexistent {
5 | ^^^^^^^^^^^ not found in this scope
7 error[E0117]: only traits defined in the current crate can be implemented for arbitrary types
8 --> $DIR/drop-on-non-struct.rs:1:1
10 LL | impl<'a> Drop for &'a mut isize {
11 | ^^^^^^^^^^^^^^^^^^-------------
13 | | `isize` is not defined in the current crate
14 | impl doesn't use only types from inside the current crate
16 = note: define and implement a trait or new type instead
18 error[E0120]: the `Drop` trait may only be implemented for structs, enums, and unions
19 --> $DIR/drop-on-non-struct.rs:1:19
21 LL | impl<'a> Drop for &'a mut isize {
22 | ^^^^^^^^^^^^^ must be a struct, enum, or union
24 error: aborting due to 3 previous errors
26 Some errors have detailed explanations: E0117, E0120, E0412.
27 For more information about an error, try `rustc --explain E0117`.