these 2 derivations will be built:
  /nix/store/2bg4imw4cvm1pcr8flyg9vpk93fi4gkc-coco-1.1.104+041358.66de1c44636f.drv
  /nix/store/1bm3q0fafyyjl40lbz770sah999rpaif-check-coco.drv