these 2 derivations will be built:
  /nix/store/6bwizi4n4savlnrpj3xf8w5bfbjwma2v-iets-fuzz-diff-0.0.0.drv
  /nix/store/phb57mnncwr5qzbi0qi440v5fjfpphck-iets-fuzz-parse-check.drv