this derivation will be built: /nix/store/r4xd1lj00x4y5bdxza7hyp1g2inq3wn1-treefmt-check.drv building '/nix/store/r4xd1lj00x4y5bdxza7hyp1g2inq3wn1-treefmt-check.drv' treefmt-check> traversed 539 files treefmt-check> emitted 367 files for processing treefmt-check> formatted 367 files (0 changed) in 17.501s upload niks3: ok