this derivation will be built: /nix/store/3cns8c645bvbrw3cn5hfcvj5gjl34y3w-treefmt-check.drv building '/nix/store/3cns8c645bvbrw3cn5hfcvj5gjl34y3w-treefmt-check.drv' treefmt-check> traversed 554 files treefmt-check> emitted 374 files for processing treefmt-check> formatted 374 files (0 changed) in 39.809s upload niks3: ok