these 2 derivations will be built:
  /nix/store/rj8j23gnvpwck6mjh0hn8n3dyhhgj5ha-fabro-0.304.0-nightly.1-vendor.drv
  /nix/store/asipsinhs4ifki8zzixcvpz81s3h60pc-fabro-0.304.0-nightly.1.drv