these 2 derivations will be built:
  /nix/store/09nkmjjg95q3cqdzrx1n0a8lq3yx1ipx-iets-conformance-adapter.drv
  /nix/store/gbs9d0mn1r1a25irk74k6x6v4fq6w2vx-nix-conformance-iets.drv