this derivation will be built:
  /nix/store/lsh3v2fjnibha5rmjb9rfvamsjvjj6fp-treefmt-check.drv
bld4: building lsh3v2fjnibha5rmjb9rfvamsjvjj6fp-treefmt-check.drv
traversed 517 files
emitted 354 files for processing
formatted 354 files (0 changed) in 18.746s