these 3 derivations will be built:
  /nix/store/89gx4kjwx73pb4js2sg7nn2d22dgfk0k-home-manager-path.drv
  /nix/store/b8wdi4lrx2ix4pc9jxgzg9n7p0v2nqa2-activation-script.drv
  /nix/store/y0csg3r5qpxshaaxh9l78hpkfzgwb952-home-manager-generation.drv