these 3 derivations will be built:
  /nix/store/cac7202nzhkfv8mpwqcdnd08mr42d1dr-treefmt.toml.drv
  /nix/store/y2z7rmwlqs7i31n7k68gacl90k5njws9-treefmt.drv
  /nix/store/1wmy0zgllpznnmh1bzgsyh92yyk30fgd-treefmt-check.drv
this path will be fetched (6.0 MiB download, 18.4 MiB unpacked):
  /nix/store/k2hwcha2p1fy0v0py34vq3jyvwqk339p-rustfmt-1.97.1
building '/nix/store/cac7202nzhkfv8mpwqcdnd08mr42d1dr-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/y2z7rmwlqs7i31n7k68gacl90k5njws9-treefmt.drv'
building '/nix/store/1wmy0zgllpznnmh1bzgsyh92yyk30fgd-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 19 files
treefmt-check> emitted 8 files for processing
treefmt-check> formatted 8 files (0 changed) in 61ms