this derivation will be built:
  /nix/store/c09zfxyca4wp7a0l4kl6xph6v9d4hksc-treefmt-check.drv
building '/nix/store/c09zfxyca4wp7a0l4kl6xph6v9d4hksc-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 465 files
treefmt-check> emitted 315 files for processing
treefmt-check> formatted 315 files (0 changed) in 599ms