computer: fixes

crates/brk_computer/src/pools/mod.rs

@@ -82,6 +82,7 @@ impl Vecs {
         exit: &Exit,
     ) -> Result<()> {
         self.compute_(indexer, indexes, starting_indexes, chain, price, exit)?;
+        let _lock = exit.lock();
         self.db.compact()?;
         Ok(())
     }