these 3 derivations will be built:
  /nix/store/3h71zdmhfw7wi62bgfbs3c7bnc3a9ccc-treefmt.toml.drv
  /nix/store/asgdvw0zp77y7kjmsavcki80q94x6hh3-treefmt.drv
  /nix/store/7m4lpl8zdxq983cs7r0zgmrvfqsc4gj0-treefmt-check.drv