these 2 derivations will be built:
  /nix/store/3m4hmq426x206c2d1i7rbv8caf44xp0w-nix-grpc-store-fuzzers-0.2.2.drv
  /nix/store/5igcdfll1fhlbldbfpfqijrh2cjm5yig-nix-grpc-store-fuzz-smoke.drv