| error[E0277]: the size for values of type `[u8]` cannot be known at compilation time | 
 |   --> $DIR/unsized-locals-using-unsized-fn-params.rs:5:15 | 
 |    | | 
 | LL | fn f1(box box _b: Box<Box<[u8]>>) {} | 
 |    |               ^^ doesn't have a size known at compile-time | 
 |    | | 
 |    = help: the trait `Sized` is not implemented for `[u8]` | 
 |    = note: all local variables must have a statically known size | 
 |  | 
 | error[E0277]: the size for values of type `[i32]` cannot be known at compilation time | 
 |   --> $DIR/unsized-locals-using-unsized-fn-params.rs:8:12 | 
 |    | | 
 | LL | fn f2((_x, _y): (i32, [i32])) {} | 
 |    |            ^^ doesn't have a size known at compile-time | 
 |    | | 
 |    = help: the trait `Sized` is not implemented for `[i32]` | 
 |    = note: all local variables must have a statically known size | 
 |  | 
 | error[E0277]: the size for values of type `[u8]` cannot be known at compilation time | 
 |   --> $DIR/unsized-locals-using-unsized-fn-params.rs:13:9 | 
 |    | | 
 | LL |     let _foo: [u8] = *foo; | 
 |    |         ^^^^ doesn't have a size known at compile-time | 
 |    | | 
 |    = help: the trait `Sized` is not implemented for `[u8]` | 
 |    = note: all local variables must have a statically known size | 
 | help: consider borrowing here | 
 |    | | 
 | LL |     let _foo: &[u8] = *foo; | 
 |    |               + | 
 |  | 
 | error: aborting due to 3 previous errors | 
 |  | 
 | For more information about this error, try `rustc --explain E0277`. |