these 2 derivations will be built:
  /nix/store/mw7djsksjnxss9p4ajpj5w2l1950pscx-flake-inputs.drv
  /nix/store/ya3wcf0r21846xq449x5j3y7yhs29zqb-check-flake-inputs.drv
building '/nix/store/mw7djsksjnxss9p4ajpj5w2l1950pscx-flake-inputs.drv'
building '/nix/store/ya3wcf0r21846xq449x5j3y7yhs29zqb-check-flake-inputs.drv'

upload niks3: ok