these 4 derivations will be built:
  /nix/store/k5lanxmhzm98sc0qzz6qc4qbf79avrnc-iets-0.1.0.drv
  /nix/store/smrch2pwkmh7g6ms24iscrnvy7xh5f9x-iets-fuzz-diff-0.0.0.drv
  /nix/store/02nljh3dnpvjqyqbxwli98ib0546dnc4-iets-conformance-adapter.drv
  /nix/store/41j5xh09w6v99fv8rrg18m498d536lcd-nix-conformance-iets.drv