this derivation will be built:
  /nix/store/ac7ihs5n8617n0d4v0plblk569r1la5n-treefmt-check.drv
building '/nix/store/ac7ihs5n8617n0d4v0plblk569r1la5n-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 46 files
treefmt-check> emitted 30 files for processing
treefmt-check> formatted 30 files (0 changed) in 40ms