this derivation will be built:
  /nix/store/c8d3fcics8kmw5rkl2qfpsrxqzd8jmbv-stack-land.drv
building '/nix/store/c8d3fcics8kmw5rkl2qfpsrxqzd8jmbv-stack-land.drv' on 'grpc://[fddb:4344:343b:14b9:399:9324:19d9:3451]:50051?ca-cert=/run/nix-grpc-store/ca.crt&connect-timeout=5'
building '/nix/store/c8d3fcics8kmw5rkl2qfpsrxqzd8jmbv-stack-land.drv' on [fddb:4344:343b:14b9:399:9324:19d9:3451]:50051
stack-land> stibnite: building c8d3fcics8kmw5rkl2qfpsrxqzd8jmbv-stack-land.drv

upload niks3: ok