message: Fix crash when adding essential files
diff: @@ -238,7 +238,7 @@ impl RustwideBuilder {
  })?;
  }
  - add_path_into_database(&conn, "", &dest)?;
  + add_path_into_database(&conn, HOST_TARGET, &dest)?;
  conn.query(
  "INSERT INTO config (name, value) VALUES ('rustc_version', $1) \
  ON CONFLICT (name) DO UPDATE SET value = $1;",
  