these 3 derivations will be built:
  /nix/store/ivvm5m21162vh7iakpics357vsl3gsaw-source.drv
  /nix/store/fpnx1fykrsf9dycga4phqvhp2m2xqfzp-deja-vu-0.24.2.drv
  /nix/store/3bmdpkbgkwb9r9izjmjz2p5ys0kf3jcc-check-deja-vu.drv