rust/src/test/ui/issues/issue-41974.stderr
2018-12-25 21:08:33 -07:00

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error[E0119]: conflicting implementations of trait `std::ops::Drop` for type `std::boxed::Box<_>`:
--> $DIR/issue-41974.rs:7:1
|
LL | impl<T> Drop for T where T: A { //~ ERROR E0119
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: conflicting implementation in crate `alloc`:
- impl<T> std::ops::Drop for std::boxed::Box<T>
where T: ?Sized;
= note: downstream crates may implement trait `A` for type `std::boxed::Box<_>`
error[E0120]: the Drop trait may only be implemented on structures
--> $DIR/issue-41974.rs:7:18
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LL | impl<T> Drop for T where T: A { //~ ERROR E0119
| ^ implementing Drop requires a struct
error[E0210]: type parameter `T` must be used as the type parameter for some local type (e.g., `MyStruct<T>`)
--> $DIR/issue-41974.rs:7:1
|
LL | impl<T> Drop for T where T: A { //~ ERROR E0119
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type parameter `T` must be used as the type parameter for some local type
|
= note: only traits defined in the current crate can be implemented for a type parameter
error: aborting due to 3 previous errors
Some errors occurred: E0119, E0120, E0210.
For more information about an error, try `rustc --explain E0119`.