these 2 derivations will be built:
  /nix/store/2fmk5rys0v9xxh8zfspkm48ra2gaw2c6-iets-fuzzers-0.0.0.drv
  /nix/store/rqagh9l3nfwrqz700yriim19ids47597-iets-fuzz-parse-check.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy