these 2 derivations will be built:
  /nix/store/m8k2krwhypxf3rms7svm2xjfi1nv644z-coco-1.2.24+183154.baac4cb1308e.drv
  /nix/store/hp726zz1yklnngnmba5h6ccrh4jn6plp-check-coco.drv