these 3 derivations will be built:
  /nix/store/3i67fl8qkw3arkalfq7zgcc091p1pjdf-treefmt.toml.drv
  /nix/store/69xc7yr7l92vp38yyfdnscy80zwrqijh-treefmt.drv
  /nix/store/0w3qc4cjmvh1n0ipnnp4wfnhy7sc2f3x-treefmt-check.drv