this derivation will be built:
  /nix/store/r5l8sc20a67gp1ihnzwkhx51pdqvyqsk-treefmt-check.drv
building '/nix/store/r5l8sc20a67gp1ihnzwkhx51pdqvyqsk-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 561ms