these 3 derivations will be built:
  /nix/store/mvy9597160qin613jviphrwdzrrxp0lm-source.drv
  /nix/store/m67mmnla7mial1sna2dq06hs2arms8s9-jellystat-1.1.12-npm-deps.drv
  /nix/store/hvzk3q8bq3bw9s5m97na3w99nmyqw682-jellystat-1.1.12.drv