these 2 derivations will be built:
  /nix/store/8alm753w1mmnsfzcy0cyzyv365d38nbp-treefmt.drv
  /nix/store/f1izfwpcsm0szig20kk51vjv5hznss78-treefmt-check.drv
this path will be fetched (0.0 KiB download, 0.3 KiB unpacked):
  /nix/store/ri6ngvyzhjfgsn10rnwmcsgakhc55fpw-treefmt.toml