+error[E0119]: conflicting implementations of trait `std::marker::Copy` for type `&NotSync`
+ --> $DIR/coherence-impls-copy.rs:28:1
+ |
+LL | impl Copy for &'static NotSync {}
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ |
+ = note: conflicting implementation in crate `core`:
+ - impl<T> Copy for &T
+ where T: ?Sized;
+