these 3 derivations will be built:
  /nix/store/d0mzs118d122gfz1v6760jvqcwz36yh2-treefmt.toml.drv
  /nix/store/76k1b2v7y2gxm3bxk50608bd30yrnzjh-treefmt.drv
  /nix/store/y1w4s4qb225wfmcvvn1arc2bjzsmpz89-treefmt-check.drv
this path will be fetched (8.8 MiB download, 47.4 MiB unpacked):
  /nix/store/55mfy3z8nv3d7hjghybnk2fmazyqfyhh-clang-tools-21.1.8
copying path '/nix/store/55mfy3z8nv3d7hjghybnk2fmazyqfyhh-clang-tools-21.1.8' from 'https://cache.nixos.org'...
building '/nix/store/d0mzs118d122gfz1v6760jvqcwz36yh2-treefmt.toml.drv'...

building '/nix/store/76k1b2v7y2gxm3bxk50608bd30yrnzjh-treefmt.drv'...
building '/nix/store/y1w4s4qb225wfmcvvn1arc2bjzsmpz89-treefmt-check.drv'...
treefmt v2.5.0traversed 19 files
emitted 12 files for processing
formatted 12 files (0 changed) in 119ms