these 3 derivations will be built:
  /nix/store/5k3gkljv3avfkrdfvilymjmpp36qmy0x-ccusage-20.0.45-vendor.drv
  /nix/store/4p3p6ppd925cq8rbi1r9n0k0c9g65frj-ccusage-20.0.45.drv
  /nix/store/x1p2ywli7hj1lyxwki190mbbbmx9wgrs-check-ccusage.drv