these 2 derivations will be built:
  /nix/store/aaq2qzmw46hr9dvp49ilwl9l52pnjzg6-flake-inputs.drv
  /nix/store/8gfgc23bywnchi2p9nzdpdrgh70a7i91-check-flake-inputs.drv
building '/nix/store/aaq2qzmw46hr9dvp49ilwl9l52pnjzg6-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/aaq2qzmw46hr9dvp49ilwl9l52pnjzg6-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-23d67df9: building aaq2qzmw46hr9dvp49ilwl9l52pnjzg6-flake-inputs.drv
building '/nix/store/8gfgc23bywnchi2p9nzdpdrgh70a7i91-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/8gfgc23bywnchi2p9nzdpdrgh70a7i91-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-23d67df9: building 8gfgc23bywnchi2p9nzdpdrgh70a7i91-check-flake-inputs.drv