these 4 derivations will be built:
  /nix/store/lpbsxl04q44s432x32yqfcc0zl71iadw-iets-0.1.0.drv
  /nix/store/x2pvb3manfr54y5i7w8dg7x04fd5f3y8-iets-fuzz-diff-0.0.0.drv
  /nix/store/7kzsw0qhk4gpanxyjxvrzhmy5vxcsnj6-iets-conformance-adapter.drv
  /nix/store/sjnh1pxyw2aarxpv1ly119bq349dah1q-nix-conformance-iets.drv