these 3 derivations will be built:
  /nix/store/7b2pjay7lbi2xh2pjswlgiavchsqjlb1-treefmt.toml.drv
  /nix/store/6d807jpm02dn4qz3f6y9c928x6wgby3v-treefmt.drv
  /nix/store/5jm8v16pvfj2kj87n1zb3bz2mcvadmxp-inputDerivation-treefmt-check.drv
these 2 paths will be fetched (16.3 MiB download, 84.0 MiB unpacked):
  /nix/store/aawjx69vgxy7fnnbfgs7j1978zj32m9i-nixfmt-rs-0.5.3
  /nix/store/43sjg68snlvh1983g1a7hbqjzxxznh43-python3.14-mypy-2.1.0