these 4 derivations will be built:
  /nix/store/50jnn4byms07a2a54jb4sh1q38q82r79-iets-0.1.0.drv
  /nix/store/ixkfr4v37rhym62sa5hrgyv6189l85hv-iets-fuzz-diff-0.0.0.drv
  /nix/store/39yai6hddj203hidmyvclkzbalblfkf9-iets-conformance-adapter.drv
  /nix/store/5zcm053m142pl7fwyhy1z0b54rd7a9wp-nix-conformance-iets.drv