these 3 derivations will be built:
  /nix/store/h78cg7igd9p4p1gpbhi5ci51bbkkqns2-treefmt.toml.drv
  /nix/store/z1x0f0fx8ldslh1jamlshvrncv802yh6-treefmt.drv
  /nix/store/r3if07477vl92w0xqw0mms0hk8i0wdir-treefmt-check.drv
building '/nix/store/h78cg7igd9p4p1gpbhi5ci51bbkkqns2-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/z1x0f0fx8ldslh1jamlshvrncv802yh6-treefmt.drv'
treefmt> structuredAttrs is enabled
building '/nix/store/r3if07477vl92w0xqw0mms0hk8i0wdir-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 73 files
treefmt-check> emitted 50 files for processing
treefmt-check> formatted 50 files (0 changed) in 1.204s