these 3 derivations will be built:
  /nix/store/4jzs8rar0slm37p6rs8q27ixg1njrxnf-treefmt.toml.drv
  /nix/store/7x26pc1c8z824sgvwc72xh5a3h3ggwc1-treefmt.drv
  /nix/store/qq894yi1kzl6wag7d4yj1c7bl2sm19qa-treefmt-check.drv
building '/nix/store/4jzs8rar0slm37p6rs8q27ixg1njrxnf-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
treefmt.toml> 
building '/nix/store/7x26pc1c8z824sgvwc72xh5a3h3ggwc1-treefmt.drv'
building '/nix/store/qq894yi1kzl6wag7d4yj1c7bl2sm19qa-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 91 files
treefmt-check> emitted 48 files for processing
treefmt-check> formatted 48 files (0 changed) in 439ms