this derivation will be built:
  /nix/store/8k0hnxmpbpbk95imc3qiafxk26bwry4r-check-grok.drv
building '/nix/store/8k0hnxmpbpbk95imc3qiafxk26bwry4r-check-grok.drv'

upload niks3: ok