these 3 derivations will be built:
  /nix/store/r4nvirn1llkc286bzfkbh20agwwylm02-treefmt.toml.drv
  /nix/store/vlqq09i43dgd28ir9ybhdifhx9dr9y15-treefmt.drv
  /nix/store/5ph9r7jgmaqziddgw0y0a6qqxsh4ivqz-treefmt-check.drv
this path will be fetched (1.0 MiB download, 2.7 MiB unpacked):
  /nix/store/fzsnm7dznh380plw3s0qc2yvaf5bw72c-nixfmt-rs-0.5.3