these 2 derivations will be built:
  /nix/store/8wrbhzw7yyr0srimqyavlk5brqrpslms-codegraph-1.6.0.drv
  /nix/store/kfswd9zjbva0pql2v4xz6zxwbzrr1p9a-check-codegraph.drv