these 4 derivations will be built:
  /nix/store/1bacjdsy2nrf8fkncfjbac113ymyyg6i-nix-diff-0.1.0.drv
  /nix/store/g6wkcbrcj1aqkddbrr2hzs2grkc7mazh-home-manager-path.drv
  /nix/store/5r218hdv09w8pnhkmqad5bqimmyv208q-activation-script.drv
  /nix/store/8idhpkblx4wcsc561gy8gz7xy2yfbj53-home-manager-generation.drv