these 2 derivations will be built:
  /nix/store/0gmp8a0wd4r2chjsfrzilzn6f43871b2-iets-deps-riscv64-unknown-linux-gnu-0.1.0.drv
  /nix/store/6vld775fssdargc12gwli4hab2c9rmqz-iets-riscv64-unknown-linux-gnu-0.1.0.drv