these 4 derivations will be built:
  /nix/store/19q3wbbrh22ka216xprp69gf1nqndg18-iets-0.2.0.drv
  /nix/store/4bal7w4wkcn9yd6mvh8xsrj74xldzrhp-iets-fuzz-diff-0.0.0.drv
  /nix/store/85lw6gzj88mvf0zq6i0s9aalmbrc9c9n-iets-conformance-adapter.drv
  /nix/store/jngfy0hphcg9sw9nifhc1yhjqy1qrzmq-nix-conformance-iets.drv