these 3 derivations will be built:
  /nix/store/90dzqqwpb5s33jx0ap44fsn9rfd3gyy1-treefmt.toml.drv
  /nix/store/25cckihhf1gd1wdp7hym12ik72vi5db4-treefmt.drv
  /nix/store/bjzaw0m22v5vl7v49cb8ljp271x49ykw-treefmt-check.drv