these 3 derivations will be built:
  /nix/store/ii1fxz2z0g68ra5xbf2bbd23sxfsfah2-home-manager-path.drv
  /nix/store/flm6rwvvf8dhvpx8ajdwdq8drpgbaznj-activation-script.drv
  /nix/store/zd20l5k0sxpxmhdrkgpnqf8fg5xzgd31-home-manager-generation.drv