these 2 derivations will be built:
  /nix/store/3c0zrsd3cisidrxjflw5znijb03cbf6z-flake-inputs.drv
  /nix/store/ilvmxcn4k8qcky44pap3xl63zbsvwgvd-check-flake-inputs.drv
could not copy /nix/store/k35h8c942svphi0f12l3zr0jzwxqybwy-check-flake-inputs: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.2:50051: tcp handshaker shutdown
error: some outputs are unexpectedly invalid