these 3 derivations will be built:
  /nix/store/hc8rsm4pa8q7jp0kpvgi0ydndzv434m9-treefmt.toml.drv
  /nix/store/pvcs9qksnj8iyfmq9a3zj8s53qn90b0y-treefmt.drv
  /nix/store/9v3lr27x8p8g573x68jwvhmll49rkdra-treefmt-check.drv