this derivation will be built:
  /nix/store/2fj7midn52ilphmmc6lk53ryhm76gw1q-treefmt-check.drv
bld4: building 2fj7midn52ilphmmc6lk53ryhm76gw1q-treefmt-check.drv
traversed 517 files
emitted 354 files for processing
formatted 354 files (0 changed) in 7.671s