these 2 derivations will be built:
  /nix/store/i6p6ifrpgaq5s1vsz47wmfc3a96lqyyg-treefmt.drv
  /nix/store/66bzgp2ivw1dxa4fskincfapzwymys8r-treefmt-check.drv
this path will be fetched (0.0 KiB download, 0.8 KiB unpacked):
  /nix/store/7xqffql6sq5cxi4w6wfvxf5cfmhxydzw-treefmt.toml