these 3 derivations will be built:
  /nix/store/dx0bjgh9s74g90a37f8b72cbckrmgrk8-treefmt.toml.drv
  /nix/store/ffv60kxkn3ll3kqga1assvjsbs1xpypy-treefmt.drv
  /nix/store/k8x4l92ybfwz74wxs06dkzhwfngj6a4m-inputDerivation-treefmt-check.drv