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error[E0277]: the size for values of type `str` cannot be known at compilation time
--> $DIR/unsized-ret.rs:10:11
|
LL | foo::<fn() -> str, _>(None, ());
| ^^^^^^^^^^^ doesn't have a size known at compile-time
|
= help: within `fn() -> str`, the trait `Sized` is not implemented for `str`
= note: required because it appears within the type `fn() -> str`
note: required by a bound in `foo`
--> $DIR/unsized-ret.rs:5:11
|
LL | fn foo<F: Fn<T>, T:std::marker::Tuple>(f: Option<F>, t: T) {
| ^^^^^ required by this bound in `foo`
error[E0277]: the size for values of type `(dyn std::fmt::Display + 'a)` cannot be known at compilation time
--> $DIR/unsized-ret.rs:13:11
|
LL | foo::<for<'a> fn(&'a ()) -> (dyn std::fmt::Display + 'a), _>(None, (&(),));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
= help: within `for<'a> fn(&'a ()) -> (dyn std::fmt::Display + 'a)`, the trait `for<'a> Sized` is not implemented for `(dyn std::fmt::Display + 'a)`
= note: required because it appears within the type `for<'a> fn(&'a ()) -> (dyn std::fmt::Display + 'a)`
note: required by a bound in `foo`
--> $DIR/unsized-ret.rs:5:11
|
LL | fn foo<F: Fn<T>, T:std::marker::Tuple>(f: Option<F>, t: T) {
| ^^^^^ required by this bound in `foo`
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.
|
