these 4 derivations will be built:
  /nix/store/wsz6rjv7y58gynxiajnw7w624hzdjk7r-iets-0.1.0.drv
  /nix/store/y6s02qlsl13inam5vqljcdvafq1g159h-iets-fuzz-diff-0.0.0.drv
  /nix/store/czs9sl443493xv7qc2c0vvx5m3363bfw-iets-conformance-adapter.drv
  /nix/store/8m3q5jzkhsnn7lbyxgnw787zzq5idkj1-nix-conformance-iets.drv