this derivation will be built: /nix/store/b9fll7pxl72j1ly1n6cljixp3846q9b1-treefmt-check.drv building '/nix/store/b9fll7pxl72j1ly1n6cljixp3846q9b1-treefmt-check.drv' treefmt-check> treefmt v2.6.0traversed 2083 files treefmt-check> emitted 556 files for processing treefmt-check> formatted 556 files (0 changed) in 3.184s upload niks3: ok