these 2 derivations will be built:
  /nix/store/6v2g6nqhbvp6619s280l2lxmfwnnx27c-treefmt.drv
  /nix/store/w5y4mk9lfk7mr2kayak7450d24zhsglz-treefmt-check.drv
this path will be fetched (0.0 KiB download, 0.4 KiB unpacked):
  /nix/store/lmwlbgy4l0a9r94kmmg2azgyyfvhis2c-treefmt.toml