this derivation will be built:
  /nix/store/7p48ykvk4jd73gq2al5np7qs5hms78yd-treefmt-check.drv
building '/nix/store/7p48ykvk4jd73gq2al5np7qs5hms78yd-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 43 files
treefmt-check> emitted 28 files for processing
treefmt-check> formatted 28 files (0 changed) in 41ms