these 3 derivations will be built:
  /nix/store/sjav41aay7wmq8zn4670q02a8aaa3p2b-treefmt.toml.drv
  /nix/store/s1wzxc32yw1lb3yqscfv8lji5gqjipdk-treefmt.drv
  /nix/store/gz38hyxxkp0d1g4c6bj77ksknniwm73v-treefmt-check.drv
this path will be fetched (10.5 MiB download, 29.5 MiB unpacked):
  /nix/store/lakbrf54z5zfs8jsf5npmgz6mp68qdj2-ruff-0.15.22