these 3 derivations will be built:
  /nix/store/asnhap77avhvvj16ibv3dxgbg4ky37k4-ccusage-20.0.30-vendor.drv
  /nix/store/yalwx4272jsnm3k2wq7dk2lqbi0a9x44-ccusage-20.0.30.drv
  /nix/store/bfkqkf0nabhmg1xvr83iajx73x9r13xq-check-ccusage.drv