these 3 derivations will be built:
  /nix/store/zafwwmbgkv5bl16vxynv6cp8b9lq3qdh-home-manager-path.drv
  /nix/store/7yb33jvknzbd4bvphqskri1vsfdc0bnk-activation-script.drv
  /nix/store/xpp5x6acv5kl7xfqasyxnclfl35ym6sw-home-manager-generation.drv