this derivation will be built:
  /nix/store/gcsabpg548kfd82l457v4fmisdfvx7if-treefmt-check.drv
bld4: building gcsabpg548kfd82l457v4fmisdfvx7if-treefmt-check.drv
traversed 517 files
emitted 354 files for processing
formatted 354 files (0 changed) in 7.847s