these 3 derivations will be built:
  /nix/store/ynlw4mkrq7s61j22fmkgdlg5yq922x31-treefmt.toml.drv
  /nix/store/zr57486b842d99aiyw7aan89aizyigqz-treefmt.drv
  /nix/store/9pfkm2ygdxakpvb1k1b41k7nx1ykxy38-inputDerivation-treefmt-check.drv
these 2 paths will be fetched (14.5 MiB download, 71.0 MiB unpacked):
  /nix/store/m7qns7c685ipighxx60bry03pz27kll7-nixfmt-rs-0.5.3
  /nix/store/802sq8z3s7qwbh0f6z3bwyawsllyqkv4-python3.14-mypy-2.1.0