these 4 derivations will be built:
  /nix/store/0m63qzrvsj5f2k2gplr0b4hb76yjpdmm-iets-0.1.0.drv
  /nix/store/17nx0c2hi160xjfd54jhr1vfpc7p36zh-iets-fuzz-diff-0.0.0.drv
  /nix/store/rlshqlczlv2kfiq1bprysbwc0yh7inwh-iets-conformance-adapter.drv
  /nix/store/l2j7pi8wb76ydckdy77942394i8zs8v0-nix-conformance-iets.drv