this derivation will be built: /nix/store/g9mxq971s3ra7dlbywx9vfjn4xci8sy3-treefmt-check.drv building '/nix/store/g9mxq971s3ra7dlbywx9vfjn4xci8sy3-treefmt-check.drv' treefmt-check> treefmt v2.6.0traversed 2141 files treefmt-check> emitted 574 files for processing treefmt-check> formatted 574 files (0 changed) in 8.917s upload niks3: ok