these 3 derivations will be built:
  /nix/store/ijjqw7yarwznmlsvyc03y0a1a5v89f6r-treefmt.toml.drv
  /nix/store/4n1kpmzv33xx4lvgdq8m6p39bngb3bxq-treefmt.drv
  /nix/store/3kmwgmq6r4bbrg5cmri0y52ww0x1li4k-treefmt-check.drv
building '/nix/store/ijjqw7yarwznmlsvyc03y0a1a5v89f6r-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
treefmt.toml> 
building '/nix/store/4n1kpmzv33xx4lvgdq8m6p39bngb3bxq-treefmt.drv'
building '/nix/store/3kmwgmq6r4bbrg5cmri0y52ww0x1li4k-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 220ms