these 2 derivations will be built:
  /nix/store/5pypsysb2ix8yd9z50ivyirw4vdca5c9-treefmt.toml.drv
  /nix/store/fdymmffz1yma5hy9hhvw4jy9zyqcd2h1-treefmt.drv
this path will be fetched (9.3 MiB download, 25.9 MiB unpacked):
  /nix/store/5pjwp5ad0x369bj32a8hl3bipj9ipfm7-ruff-0.16.4