this derivation will be built:
  /nix/store/s6c5ch1p54x6760c2nnpcjjn7a2hy9mb-treefmt-check.drv
building '/nix/store/s6c5ch1p54x6760c2nnpcjjn7a2hy9mb-treefmt-check.drv'
treefmt-check> treefmt v2.4.0traversed 923 files
treefmt-check> emitted 228 files for processing
treefmt-check> formatted 228 files (0 changed) in 577ms