these 2 derivations will be built:
  /nix/store/ay629pki6sn0kl7cxkfvhnw1jpw0bffl-flake-inputs.drv
  /nix/store/r7gw4bwqfs24vg7hrj0biw82nq9rlzsc-check-flake-inputs.drv
building '/nix/store/ay629pki6sn0kl7cxkfvhnw1jpw0bffl-flake-inputs.drv'
building '/nix/store/r7gw4bwqfs24vg7hrj0biw82nq9rlzsc-check-flake-inputs.drv'

upload niks3: ok