Using `use` together with pattern matches compiles, when it shouldn't

The following code compiles, when it shouldn't:
```gleam
import gleam/io
import gleam/result

pub fn main() {
  use <<var:8>> <- result.try(wibble())
  Ok(io.debug(var))
}

fn wibble() -> Result(BitArray, Nil) {
  Ok(<<42, 0>>)
}
```

On Erlang, it will result in a runtime error, while on JS, it will just print `42`.

Gleam version 1.6.1