rust/src/test/ui/unique-object-noncopyable.stderr
2021-08-04 10:48:30 +02:00

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error[E0599]: the method `clone` exists for struct `Box<dyn Foo>`, but its trait bounds were not satisfied
--> $DIR/unique-object-noncopyable.rs:24:16
|
LL | trait Foo {
| ---------
| |
| doesn't satisfy `dyn Foo: Clone`
| doesn't satisfy `dyn Foo: Sized`
...
LL | let _z = y.clone();
| ^^^^^ method cannot be called on `Box<dyn Foo>` due to unsatisfied trait bounds
|
::: $SRC_DIR/alloc/src/boxed.rs:LL:COL
|
LL | / pub struct Box<
LL | | T: ?Sized,
LL | | #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global,
LL | | >(Unique<T>, A);
| |________________- doesn't satisfy `Box<dyn Foo>: Clone`
|
= note: the following trait bounds were not satisfied:
`dyn Foo: Sized`
which is required by `Box<dyn Foo>: Clone`
`dyn Foo: Clone`
which is required by `Box<dyn Foo>: Clone`
error: aborting due to previous error
For more information about this error, try `rustc --explain E0599`.