this derivation will be built:
  /nix/store/y95p1h4kycb7lam7fnxpsijchw3mxbpb-treefmt-check.drv
bld4: building y95p1h4kycb7lam7fnxpsijchw3mxbpb-treefmt-check.drv
traversed 517 files
emitted 354 files for processing
formatted 354 files (0 changed) in 11.559s