these 3 derivations will be built:
  /nix/store/hm0nqhbhw38cdxhwqnc3fsyji4k96raf-treefmt.toml.drv
  /nix/store/n3ckshk67qkxl3d4bqhfjqdrm427963a-treefmt.drv
  /nix/store/1fpzv3iva9mdj6yfjcamhrlcb49gcncs-treefmt-check.drv
these 2 paths will be fetched (16.4 MiB download, 84.4 MiB unpacked):
  /nix/store/yx9m5hy0bza1gxfbb5zdmi7sgdyqgvy0-nixfmt-rs-0.4.1
  /nix/store/69mqmd5q1pm47qkp6ic645n467z0p0q9-python3.14-mypy-2.1.0