these 2 derivations will be built:
  /nix/store/6zfngkwbfgin40fkq8n0yrj41j0h89id-iets-fuzzers-0.0.0.drv
  /nix/store/wz32pgpi7hwww1yfimznb7cv8fiwa12m-iets-fuzz-parse-check.drv