these 3 derivations will be built:
  /nix/store/84cbngz227z6318gvh7va01a4bcmz804-treefmt.toml.drv
  /nix/store/qa0xnacvd0wpwd4rw9c3zf3fyizk08sg-treefmt.drv
  /nix/store/xlfq8niyfw5ww8hk5q09j72xifiy1ahr-treefmt-check.drv