these 3 derivations will be built:
  /nix/store/20gk3hk17zvw04fxmh8x7xifwd6mqbqy-treefmt.toml.drv
  /nix/store/zh5g1wl431yr475ca42mhjhrp2rs4k0m-treefmt.drv
  /nix/store/fp22gprms9w5335l96a8kw2ccpv9k30g-treefmt-check.drv
this path will be fetched (1.0 MiB download, 2.7 MiB unpacked):
  /nix/store/n0ly840jidyhdb5vpqaf48wxbfw0n2zr-nixfmt-rs-0.5.3