this derivation will be built:
  /nix/store/3flsyn9mb4qy4qnjv6ar6xgfl714s45s-treefmt-check.drv
building '/nix/store/3flsyn9mb4qy4qnjv6ar6xgfl714s45s-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 64 files
treefmt-check> emitted 54 files for processing
treefmt-check> formatted 54 files (0 changed) in 83ms

upload attic: ok
✍️ Overwriting server "r2d2"