error[E0119]: conflicting implementations of trait `Copy` for type `&NotSync` --> $DIR/coherence-impls-copy.rs:28:1 | LL | impl Copy for &'static NotSync {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: conflicting implementation in crate `core`: - impl Copy for &T where T: ?Sized; error[E0117]: only traits defined in the current crate can be implemented for arbitrary types --> $DIR/coherence-impls-copy.rs:33:1 | LL | impl Copy for &'static [NotSync] {} | ^^^^^^^^^^^^^^------------------ | | | | | this is not defined in the current crate because slices are always foreign | impl doesn't use only types from inside the current crate | = note: define and implement a trait or new type instead error[E0117]: only traits defined in the current crate can be implemented for primitive types --> $DIR/coherence-impls-copy.rs:5:1 | LL | impl Copy for i32 {} | ^^^^^^^^^^^^^^--- | | | | | `i32` is not defined in the current crate | impl doesn't use only types from inside the current crate | = note: define and implement a trait or new type instead error[E0206]: the trait `Copy` cannot be implemented for this type --> $DIR/coherence-impls-copy.rs:21:15 | LL | impl Copy for &'static mut MyType {} | ^^^^^^^^^^^^^^^^^^^ type is not a structure or enumeration error[E0117]: only traits defined in the current crate can be implemented for arbitrary types --> $DIR/coherence-impls-copy.rs:25:1 | LL | impl Copy for (MyType, MyType) {} | ^^^^^^^^^^^^^^---------------- | | | | | this is not defined in the current crate because tuples are always foreign | impl doesn't use only types from inside the current crate | = note: define and implement a trait or new type instead error[E0206]: the trait `Copy` cannot be implemented for this type --> $DIR/coherence-impls-copy.rs:25:15 | LL | impl Copy for (MyType, MyType) {} | ^^^^^^^^^^^^^^^^ type is not a structure or enumeration error[E0117]: only traits defined in the current crate can be implemented for arbitrary types --> $DIR/coherence-impls-copy.rs:30:1 | LL | impl Copy for [MyType] {} | ^^^^^^^^^^^^^^-------- | | | | | this is not defined in the current crate because slices are always foreign | impl doesn't use only types from inside the current crate | = note: define and implement a trait or new type instead error[E0206]: the trait `Copy` cannot be implemented for this type --> $DIR/coherence-impls-copy.rs:30:15 | LL | impl Copy for [MyType] {} | ^^^^^^^^ type is not a structure or enumeration error: aborting due to 8 previous errors Some errors have detailed explanations: E0117, E0119, E0206. For more information about an error, try `rustc --explain E0117`.