rust/src/test/ui/issues/issue-42312.stderr
2019-10-15 13:55:44 -07:00

28 lines
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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:4:29
|
LL | fn baz(_: Self::Target) where Self: Deref {}
| ^ - help: consider further restricting the associated type: `, <Self as std::ops::Deref>::Target: std::marker::Sized`
| |
| doesn't have a size known at compile-time
|
= 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/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
= note: all function arguments must have a statically known size
= help: unsized locals are gated as an unstable feature
error[E0277]: the size for values of type `(dyn std::string::ToString + 'static)` cannot be known at compilation time
--> $DIR/issue-42312.rs:8:27
|
LL | pub fn f(_: dyn ToString) {}
| ^ doesn't have a size known at compile-time
|
= 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/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
= note: all function arguments must have a statically known size
= help: unsized locals are gated as an unstable feature
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.