these 3 derivations will be built:
  /nix/store/i1rwisq9n7zivvhcp9gvd1jipjs33rjc-treefmt.toml.drv
  /nix/store/l6mf5r9vpmz575v8pr1rywygv0dhwdwv-treefmt.drv
  /nix/store/licz4dhv7c5l4bznva21xc6yiyrxv8q6-treefmt-check.drv