these 3 derivations will be built:
  /nix/store/rydwna3r9jcxy4249mj3pc4bjd08z8mj-pi-src-with-lock.drv
  /nix/store/0jcp6xa1npbps8in7bvkngayq7j8a340-pi-0.84.4-npm-deps.drv
  /nix/store/hx3hgp6vq0h6gd7ral62mmngbwhml93m-pi-0.84.4.drv