this derivation will be built:
  /nix/store/w8vn7hx4r0g368qa3hj5jp1qlb444qln-treefmt-check.drv
building '/nix/store/w8vn7hx4r0g368qa3hj5jp1qlb444qln-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 21 files
treefmt-check> emitted 10 files for processing
treefmt-check> formatted 10 files (0 changed) in 80ms