mirror of https://github.com/rust-lang/rust
126 lines
4.9 KiB
Plaintext
126 lines
4.9 KiB
Plaintext
error[E0277]: `T` cannot be sent between threads safely
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--> $DIR/kindck-impl-type-params.rs:16:13
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LL | let a = &t as &dyn Gettable<T>;
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| ^^ `T` cannot be sent between threads safely
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note: required for `S<T>` to implement `Gettable<T>`
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--> $DIR/kindck-impl-type-params.rs:12:32
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LL | impl<T: Send + Copy + 'static> Gettable<T> for S<T> {}
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| ---- ^^^^^^^^^^^ ^^^^
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| |
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| unsatisfied trait bound introduced here
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= note: required for the cast from `&S<T>` to `&dyn Gettable<T>`
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help: consider restricting type parameter `T`
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LL | fn f<T: std::marker::Send>(val: T) {
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| +++++++++++++++++++
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error[E0277]: the trait bound `T: Copy` is not satisfied
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--> $DIR/kindck-impl-type-params.rs:16:13
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LL | let a = &t as &dyn Gettable<T>;
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| ^^ the trait `Copy` is not implemented for `T`, which is required by `S<T>: Gettable<T>`
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note: required for `S<T>` to implement `Gettable<T>`
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--> $DIR/kindck-impl-type-params.rs:12:32
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LL | impl<T: Send + Copy + 'static> Gettable<T> for S<T> {}
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| ---- ^^^^^^^^^^^ ^^^^
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| |
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| unsatisfied trait bound introduced here
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= note: required for the cast from `&S<T>` to `&dyn Gettable<T>`
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help: consider restricting type parameter `T`
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LL | fn f<T: std::marker::Copy>(val: T) {
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| +++++++++++++++++++
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error[E0277]: `T` cannot be sent between threads safely
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--> $DIR/kindck-impl-type-params.rs:23:31
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LL | let a: &dyn Gettable<T> = &t;
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| ^^ `T` cannot be sent between threads safely
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note: required for `S<T>` to implement `Gettable<T>`
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--> $DIR/kindck-impl-type-params.rs:12:32
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LL | impl<T: Send + Copy + 'static> Gettable<T> for S<T> {}
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| ---- ^^^^^^^^^^^ ^^^^
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| |
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| unsatisfied trait bound introduced here
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= note: required for the cast from `&S<T>` to `&dyn Gettable<T>`
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help: consider restricting type parameter `T`
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LL | fn g<T: std::marker::Send>(val: T) {
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| +++++++++++++++++++
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error[E0277]: the trait bound `T: Copy` is not satisfied
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--> $DIR/kindck-impl-type-params.rs:23:31
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LL | let a: &dyn Gettable<T> = &t;
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| ^^ the trait `Copy` is not implemented for `T`, which is required by `S<T>: Gettable<T>`
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note: required for `S<T>` to implement `Gettable<T>`
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--> $DIR/kindck-impl-type-params.rs:12:32
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LL | impl<T: Send + Copy + 'static> Gettable<T> for S<T> {}
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| ---- ^^^^^^^^^^^ ^^^^
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| |
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| unsatisfied trait bound introduced here
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= note: required for the cast from `&S<T>` to `&dyn Gettable<T>`
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help: consider restricting type parameter `T`
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LL | fn g<T: std::marker::Copy>(val: T) {
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| +++++++++++++++++++
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error[E0277]: the trait bound `String: Copy` is not satisfied
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--> $DIR/kindck-impl-type-params.rs:36:13
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LL | let a = t as Box<dyn Gettable<String>>;
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| ^ the trait `Copy` is not implemented for `String`, which is required by `S<String>: Gettable<String>`
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= help: the trait `Gettable<T>` is implemented for `S<T>`
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note: required for `S<String>` to implement `Gettable<String>`
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--> $DIR/kindck-impl-type-params.rs:12:32
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LL | impl<T: Send + Copy + 'static> Gettable<T> for S<T> {}
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| ---- ^^^^^^^^^^^ ^^^^
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| |
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| unsatisfied trait bound introduced here
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= note: required for the cast from `Box<S<String>>` to `Box<dyn Gettable<String>>`
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error[E0277]: the trait bound `Foo: Copy` is not satisfied
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--> $DIR/kindck-impl-type-params.rs:44:37
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LL | let a: Box<dyn Gettable<Foo>> = t;
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| ^ the trait `Copy` is not implemented for `Foo`, which is required by `S<Foo>: Gettable<Foo>`
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= help: the trait `Gettable<T>` is implemented for `S<T>`
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note: required for `S<Foo>` to implement `Gettable<Foo>`
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--> $DIR/kindck-impl-type-params.rs:12:32
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LL | impl<T: Send + Copy + 'static> Gettable<T> for S<T> {}
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| ---- ^^^^^^^^^^^ ^^^^
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| |
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| unsatisfied trait bound introduced here
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= note: required for the cast from `Box<S<Foo>>` to `Box<dyn Gettable<Foo>>`
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help: consider annotating `Foo` with `#[derive(Copy)]`
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LL + #[derive(Copy)]
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LL | struct Foo; // does not impl Copy
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error: lifetime may not live long enough
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--> $DIR/kindck-impl-type-params.rs:30:13
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LL | fn foo<'a>() {
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| -- lifetime `'a` defined here
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LL | let t: S<&'a isize> = S(marker::PhantomData);
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LL | let a = &t as &dyn Gettable<&'a isize>;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type annotation requires that `'a` must outlive `'static`
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error: aborting due to 7 previous errors
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For more information about this error, try `rustc --explain E0277`.
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