these 3 derivations will be built:
  /nix/store/5gi6bckflzvnbanmbagcivci2rrlizzs-serde_json-1.0.153.drv
  /nix/store/bd70nkbjb7f2zqq54d6r2iiwrpfqyw6d-cargo-vendor-dir.drv
  /nix/store/vk84dw0557zmxrprh55kbcivi9g6nwzm-nix-wire-0.1.0.drv