this derivation will be built: /nix/store/n6xdi2n1maf31iqw189v0a4cb0p81zia-treefmt-check.drv building '/nix/store/n6xdi2n1maf31iqw189v0a4cb0p81zia-treefmt-check.drv' treefmt-check> traversed 555 files treefmt-check> emitted 374 files for processing treefmt-check> formatted 374 files (0 changed) in 15.67s upload niks3: ok