error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-fn-param.rs:11:11 | LL | foo11("bar", &"baz"); | ^^^^^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: required for the cast to the object type `dyn AsRef` error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-fn-param.rs:13:19 | LL | foo12(&"bar", "baz"); | ^^^^^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: required for the cast to the object type `dyn AsRef` error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-fn-param.rs:16:11 | LL | foo21("bar", &"baz"); | ^^^^^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: required for the cast to the object type `dyn AsRef` error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-fn-param.rs:18:19 | LL | foo22(&"bar", "baz"); | ^^^^^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: required for the cast to the object type `dyn AsRef` error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0277`.