this derivation will be built:
  /nix/store/dq3crlkh2iha64a5syprpm4dv2kv3g04-treefmt-check.drv
bld4: building dq3crlkh2iha64a5syprpm4dv2kv3g04-treefmt-check.drv
traversed 517 files
emitted 354 files for processing
formatted 354 files (0 changed) in 12.863s