Coverage setup fixes

.github/workflows/coverage.yml

@@ -34,11 +34,11 @@ jobs:
           --llvm
           --branch
           --ignore-not-existing
+          --binary-path ./target/debug/
           --excl-line "#\[derive\("
           --excl-br-line "#\[derive\("
           --excl-start "mod tests \{"
           --excl-br-start "mod tests \{"
-        working-directory: lib
       - name: Upload Results
         uses: codecov/codecov-action@v2
         with: