these 2 derivations will be built:
  /nix/store/klclhcppaqsz9g10p3a2b8gvw5rg398n-iets-fuzzers-0.0.0.drv
  /nix/store/3831gb33qlqhhrppkf7riwn41rczfd0h-iets-fuzz-drv-check.drv