| ^^ doesn't have a size known at compile-time
|
= help: the trait `std::marker::Sized` is not implemented for `(dyn I + 'static)`
- = note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
+help: function arguments must have a statically known size, borrowed types always have a known size
+ |
+LL | fn foo(_x: &K) {}
+ | ^
error: aborting due to previous error