these 3 derivations will be built:
  /nix/store/51cwgyjykk2mvb9cd0d9h73bc9y4njxi-treefmt.toml.drv
  /nix/store/7x650692z54cfjxf35m2z1pi784r71pk-treefmt.drv
  /nix/store/9pnjk7g7jjzf167nm9ljkwm4xxzkbfb6-treefmt-check.drv
building '/nix/store/51cwgyjykk2mvb9cd0d9h73bc9y4njxi-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
treefmt.toml> 
building '/nix/store/7x650692z54cfjxf35m2z1pi784r71pk-treefmt.drv'
building '/nix/store/9pnjk7g7jjzf167nm9ljkwm4xxzkbfb6-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 72 files
treefmt-check> emitted 31 files for processing
treefmt-check> formatted 31 files (0 changed) in 246ms