this derivation will be built:
  /nix/store/gll3cplh1m8gyjdyqwj7z586jmgvi1zp-stack-land.drv
building '/nix/store/gll3cplh1m8gyjdyqwj7z586jmgvi1zp-stack-land.drv'
stack-land> structuredAttrs is enabled

upload niks3: ok