these 2 derivations will be built:
  /nix/store/nd1nwqd7dd52fbbj2ahc666ih87hc9y2-treefmt.drv
  /nix/store/9zp2hz1zckw4js6v97m34lw327jhd1yx-treefmt-check.drv
this path will be fetched (0.0 KiB download, 0.8 KiB unpacked):
  /nix/store/r6mmzragkxgz7lkmf0fnvk6bgq8vcs4b-treefmt.toml