these 4 derivations will be built:
  /nix/store/lj4pgyfilf90pp42na6rmgm0c281mpzb-nix-tree-0.1.0.drv
  /nix/store/y5ziybsg6avrjd407xkzsl9xrlph6lv8-home-manager-path.drv
  /nix/store/kjgk7mfkp30ssiyxfl1vw3qrj97xxmmn-activation-script.drv
  /nix/store/wrxjik3z5xss2cr05znp5sy122in28zd-home-manager-generation.drv