these 3 derivations will be built:
  /nix/store/mrnlpvpi1ip5gwh59q1986zlnk657s65-treefmt.toml.drv
  /nix/store/3kzpcvxfk7vl6fspfqili63haism7na1-treefmt.drv
  /nix/store/87c1jibrwzhgzs30j7x8cbg7yhskbsx3-treefmt-check.drv