this derivation will be built: /nix/store/nbqkh1xyrjs9dfqbqimnxz66maffi62c-treefmt-check.drv building '/nix/store/nbqkh1xyrjs9dfqbqimnxz66maffi62c-treefmt-check.drv' treefmt-check> treefmt v2.6.0traversed 75 files treefmt-check> emitted 68 files for processing treefmt-check> formatted 68 files (0 changed) in 95ms upload attic: ok ✍️ Overwriting server "r2d2"