error[E0277]: the size for values of type `dyn std::fmt::Display` cannot be known at compilation time --> $DIR/unsized-across-await.rs:6:9 | LL | let _x = *x; | ^^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `dyn std::fmt::Display` = note: all local variables must have a statically known size help: references are always `Sized`, even if they point to unsized data; consider not dereferencing the expression | LL - let _x = *x; LL + let _x = x; | error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0277`.