these 4 derivations will be built:
  /nix/store/8sklpz5bg1grjbq3fg5bxf9l1wjaqxj0-source.drv
  /nix/store/hi89gzxw8szij4d1kixfw3933m1wg8ll-multica-0.6.0-go-modules.drv
  /nix/store/ppzv378prwyjnzkjhxikb6bm6n5vad53-multica-0.6.0.drv
  /nix/store/4ibvw5yn935l1ddnf97d8rk3691zzzcl-check-multica.drv