these 3 derivations will be built:
  /nix/store/m3a9v4s3i99p6v2yl7w6aqbwsc2xshi4-home-manager-path.drv
  /nix/store/xq3ap8vm2viqp1fsr9gz11c2f8rx3bi7-activation-script.drv
  /nix/store/4jbpwjv26z5jhcjimw3lzc2x6zlx5fmv-home-manager-generation.drv