these 3 derivations will be built:
  /nix/store/y4di0536288kvzm8p5sksn8wmx4mpvz4-treefmt.toml.drv
  /nix/store/fc5j2c8bjdb3r9d6fs76rs81470rpr2l-treefmt.drv
  /nix/store/azhgydj44lmkcj06gyqv2vpsmmrzwc1z-treefmt-check.drv