these 3 derivations will be built:
  /nix/store/wb5vr3sfdznrgfxfhh59gz1421xdck0p-ccusage-20.0.29-vendor.drv
  /nix/store/5gp5gjafkcy6gjnsa8rnkx9cc56bjrs3-ccusage-20.0.29.drv
  /nix/store/j7fx73hqif03j4gkk3jqzzqc8iyymb8p-check-ccusage.drv