this derivation will be built:
  /nix/store/klh725y78hr9lqljcx5r1l7vsicdd7a1-hvw-clan-eval.drv
building '/nix/store/klh725y78hr9lqljcx5r1l7vsicdd7a1-hvw-clan-eval.drv'
hvw-clan-eval> structuredAttrs is enabled

upload niks3: ok