these 4 derivations will be built:
  /nix/store/lj4pgyfilf90pp42na6rmgm0c281mpzb-nix-tree-0.1.0.drv
  /nix/store/vdxqk8g81bmdickaxzajpd7kl6w51plk-home-manager-path.drv
  /nix/store/hrlq9khi89gd6y4m3gb7q0zm9c18vb8m-activation-script.drv
  /nix/store/1lr4y05dpwnylyyiak1p29wna57sa8la-home-manager-generation.drv