these 3 derivations will be built:
  /nix/store/2krgyrxfhbfgpqlj6yzqy2rr133f562x-iets-fuzzers-0.0.0.drv
  /nix/store/ihbpjrzvsfjvms8wxm3r1wr6gqh15d06-iets-fuzz-diff-0.0.0.drv
  /nix/store/cppqh8r1yzfvskjd73a9bpl6k807am2n-iets-fuzz-parse-check.drv