these 2 derivations will be built:
  /nix/store/7i9i0q1qf7ya62dxrmkkpf3b4dm7wrbb-flake-inputs.drv
  /nix/store/xb4l3wysr4z3c5pwymxdzsbxb3pdc8mi-check-flake-inputs.drv
building '/nix/store/7i9i0q1qf7ya62dxrmkkpf3b4dm7wrbb-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/7i9i0q1qf7ya62dxrmkkpf3b4dm7wrbb-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-20d6c3df: building 7i9i0q1qf7ya62dxrmkkpf3b4dm7wrbb-flake-inputs.drv
building '/nix/store/xb4l3wysr4z3c5pwymxdzsbxb3pdc8mi-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/xb4l3wysr4z3c5pwymxdzsbxb3pdc8mi-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-20d6c3df: building xb4l3wysr4z3c5pwymxdzsbxb3pdc8mi-check-flake-inputs.drv