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error[E0277]: the size for values of type `<Self as std::ops::Deref>::Target` cannot be known at compilation time
--> $DIR/issue-42312.rs:14:29
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LL | fn baz(_: Self::Target) where Self: Deref {}
| ^ doesn't have a size known at compile-time
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= help: the trait `std::marker::Sized` is not implemented for `<Self as std::ops::Deref>::Target`
= note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-sized>
= help: consider adding a `where <Self as std::ops::Deref>::Target: std::marker::Sized` bound
error[E0277]: the size for values of type `(dyn std::string::ToString + 'static)` cannot be known at compilation time
--> $DIR/issue-42312.rs:18:23
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LL | pub fn f(_: ToString) {}
| ^ doesn't have a size known at compile-time
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= help: the trait `std::marker::Sized` is not implemented for `(dyn std::string::ToString + 'static)`
= note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-sized>
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.
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