these 3 derivations will be built:
  /nix/store/v4bdhvsn9zk28s4py6lnlr8kjql18i7z-treefmt.toml.drv
  /nix/store/5j9q6vsm3xmp5079a0v698749h59fqc3-treefmt.drv
  /nix/store/ixk7igygcdfdnwlhkcwiql4zh8izxj5p-inputDerivation-treefmt-check.drv