these 2 derivations will be built:
  /nix/store/vblyvk82c4i2gqkdbhnrzy3acqhnhw2j-flake-inputs.drv
  /nix/store/674r57sxmlslmqlp51ndpz5wsss0yf2n-check-flake-inputs.drv
building '/nix/store/vblyvk82c4i2gqkdbhnrzy3acqhnhw2j-flake-inputs.drv'
building '/nix/store/674r57sxmlslmqlp51ndpz5wsss0yf2n-check-flake-inputs.drv'

upload niks3: ok