error[E0277]: the trait bound `&mut hyperscan::RawScratch: hyperscan::Scratch` is not satisfied
   --> grep-hyperscan/src/matcher.rs:143:21
    |
143 |             self.db.scan_mut_ok(subject, hyperscan::HS_MODE_SOM_HORIZON_LARGE, &mut self.scratchpad().get_mut(),
    |                     ^^^^^^^^^^^ the trait `hyperscan::Scratch` is not implemented for `&mut hyperscan::RawScratch`
    |
    = help: the following implementations were found:
              <hyperscan::RawScratch as hyperscan::Scratch>

error: aborting due to previous error