these 3 derivations will be built:
  /nix/store/pz7y563m72f6rjzk2306gzlhlg2cx0j4-source.drv
  /nix/store/6bjj5lqmc732sjmvlj17g8fb7ggb4wys-gno-2.8.5.drv
  /nix/store/xv37m7dhsgsj25a1jmi050yavy6y9krg-check-gno.drv