these 4 derivations will be built:
  /nix/store/bgshl3f7xw4jxbrw8qsdr6sjp38bnb3w-iets-0.1.0.drv
  /nix/store/27fh45llpjpr9vnx3xcf4rphbpin66j5-home-manager-path.drv
  /nix/store/s9m41jhbckn93fz79jfx33cpvyrjq3n1-activation-script.drv
  /nix/store/2a6jc17zngsv65nqcq90z0c7dkby6n3d-home-manager-generation.drv