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error[E0277]: the size for values of type `str` cannot be known at compilation time
  --> $DIR/unsized-binding.rs:2:9
   |
LL |     let x = *"";
   |         ^ doesn't have a size known at compile-time
   |
   = help: the trait `Sized` is not implemented for `str`
   = 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 = *"";
LL +     let x = "";
   |

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.