these 2 derivations will be built:
  /nix/store/p61b5p3jln9sw60k7g6vw121f3hv90qc-flake-inputs.drv
  /nix/store/0cy43pj2xf3f3y6y1dvgkz4pggwyddsl-check-flake-inputs.drv
building '/nix/store/p61b5p3jln9sw60k7g6vw121f3hv90qc-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/p61b5p3jln9sw60k7g6vw121f3hv90qc-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-23d67df9: building p61b5p3jln9sw60k7g6vw121f3hv90qc-flake-inputs.drv
building '/nix/store/0cy43pj2xf3f3y6y1dvgkz4pggwyddsl-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/0cy43pj2xf3f3y6y1dvgkz4pggwyddsl-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-23d67df9: building 0cy43pj2xf3f3y6y1dvgkz4pggwyddsl-check-flake-inputs.drv