1 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
2 --> $DIR/issue-30355.rs:5:8
5 | ^^ doesn't have a size known at compile-time
7 = help: the trait `Sized` is not implemented for `[u8]`
8 = note: all function arguments must have a statically known size
9 = help: unsized fn params are gated as an unstable feature
11 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
12 --> $DIR/issue-30355.rs:5:6
15 | ^ doesn't have a size known at compile-time
17 = help: within `X`, the trait `Sized` is not implemented for `[u8]`
18 note: required because it appears within the type `X`
19 --> $DIR/issue-30355.rs:1:12
21 LL | pub struct X([u8]);
23 = note: the return type of a function must have a statically known size
25 error: aborting due to 2 previous errors
27 For more information about this error, try `rustc --explain E0277`.