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error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
--> $DIR/wf-bounds.rs:17:22
|
LL | fn nya() -> impl Wf<Vec<[u8]>>;
| ^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `[u8]`
note: required by a bound in `Vec`
--> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
--> $DIR/wf-bounds.rs:20:23
|
LL | fn nya2() -> impl Wf<[u8]>;
| ^^^^^^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `[u8]`
note: required by a bound in `Wf`
--> $DIR/wf-bounds.rs:10:10
|
LL | trait Wf<T> {
| ^ required by this bound in `Wf`
help: consider relaxing the implicit `Sized` restriction
|
LL | trait Wf<T: ?Sized> {
| ++++++++
error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
--> $DIR/wf-bounds.rs:23:44
|
LL | fn nya3() -> impl Wf<(), Output = impl Wf<Vec<[u8]>>>;
| ^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `[u8]`
note: required by a bound in `Vec`
--> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
error[E0277]: `T` doesn't implement `std::fmt::Display`
--> $DIR/wf-bounds.rs:26:26
|
LL | fn nya4<T>() -> impl Wf<NeedsDisplay<T>>;
| ^^^^^^^^^^^^^^^^^^^ `T` cannot be formatted with the default formatter
|
= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
note: required by a bound in `NeedsDisplay`
--> $DIR/wf-bounds.rs:14:24
|
LL | struct NeedsDisplay<T: Display>(T);
| ^^^^^^^ required by this bound in `NeedsDisplay`
help: consider restricting type parameter `T`
|
LL | fn nya4<T: std::fmt::Display>() -> impl Wf<NeedsDisplay<T>>;
| +++++++++++++++++++
error: aborting due to 4 previous errors
For more information about this error, try `rustc --explain E0277`.
|
