50 lines
1.9 KiB
Plaintext
50 lines
1.9 KiB
Plaintext
error[E0277]: the trait bound `T: Copy` is not satisfied in `dyn Setup<From = T>`
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--> $DIR/object-unsafety.rs:12:12
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LL | copy::<dyn Setup<From=T>>(t)
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| ^^^^^^^^^^^^^^^^^ within `dyn Setup<From = T>`, the trait `Copy` is not implemented for `T`, which is required by `dyn Setup<From = T>: Setup`
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= note: required because it appears within the type `dyn Setup<From = T>`
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note: required by a bound in `copy`
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--> $DIR/object-unsafety.rs:7:12
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LL | fn copy<U: Setup + ?Sized>(from: &U::From) -> U::From {
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| ^^^^^ required by this bound in `copy`
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help: consider restricting type parameter `T`
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LL | pub fn copy_any<T: std::marker::Copy>(t: &T) -> T {
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| +++++++++++++++++++
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error[E0308]: mismatched types
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--> $DIR/object-unsafety.rs:12:31
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LL | copy::<dyn Setup<From=T>>(t)
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| ------------------------- ^ types differ
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| |
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| arguments to this function are incorrect
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= note: expected reference `&<dyn Setup<From = T> as Setup>::From`
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found reference `&T`
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note: function defined here
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--> $DIR/object-unsafety.rs:7:4
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LL | fn copy<U: Setup + ?Sized>(from: &U::From) -> U::From {
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| ^^^^ --------------
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error[E0277]: the trait bound `T: Copy` is not satisfied in `dyn Setup<From = T>`
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--> $DIR/object-unsafety.rs:12:5
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LL | copy::<dyn Setup<From=T>>(t)
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ within `dyn Setup<From = T>`, the trait `Copy` is not implemented for `T`, which is required by `dyn Setup<From = T>: Setup`
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= note: required because it appears within the type `dyn Setup<From = T>`
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help: consider restricting type parameter `T`
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LL | pub fn copy_any<T: std::marker::Copy>(t: &T) -> T {
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| +++++++++++++++++++
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error: aborting due to 3 previous errors
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Some errors have detailed explanations: E0277, E0308.
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For more information about an error, try `rustc --explain E0277`.
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