these 2 derivations will be built:
  /nix/store/1x9fkn7jf94d174aycj7nafhlicj9im1-flake-inputs.drv
  /nix/store/3syn85sfkk1qnskx5xpdaqnkdggrw7mq-check-flake-inputs.drv
building '/nix/store/1x9fkn7jf94d174aycj7nafhlicj9im1-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/1x9fkn7jf94d174aycj7nafhlicj9im1-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-2c14001d: building 1x9fkn7jf94d174aycj7nafhlicj9im1-flake-inputs.drv
building '/nix/store/3syn85sfkk1qnskx5xpdaqnkdggrw7mq-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/3syn85sfkk1qnskx5xpdaqnkdggrw7mq-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-2c14001d: building 3syn85sfkk1qnskx5xpdaqnkdggrw7mq-check-flake-inputs.drv