these 3 derivations will be built:
  /nix/store/md92ygxyf7rfd7cv1y6j81k3lahmkz7j-magpie.desktop.drv
  /nix/store/bbmbrn2jhrmwz9rhy172ws47dkba9v6a-magpie-0.1.660.drv
  /nix/store/8pbh4b65384xfr1927ilpzwxkhg2155f-check-magpie.drv