these 3 derivations will be built:
  /nix/store/12vjdbm8sar5gqrf4h64gsd3042fdgyk-treefmt.toml.drv
  /nix/store/y94dbxcppigl3b561wqhdy0ck6g1arwf-treefmt.drv
  /nix/store/3mbicr1yp7lmnq56icm3j9yp26kviacz-treefmt-check.drv
this path will be fetched (10.5 MiB download, 29.5 MiB unpacked):
  /nix/store/lakbrf54z5zfs8jsf5npmgz6mp68qdj2-ruff-0.15.22