this derivation will be built:
  /nix/store/8q90jr44njggwmx586rp2rxz1mijm77f-treefmt-check.drv
bld4: building 8q90jr44njggwmx586rp2rxz1mijm77f-treefmt-check.drv
traversed 517 files
emitted 354 files for processing
formatted 354 files (0 changed) in 5.235s