these 2 derivations will be built:
  /nix/store/yfmb6aw9dblks6ls69bamr0f4b9rh2dp-flake-inputs.drv
  /nix/store/d7imh0ff2v30h03lig3l9cyjndbhg9sl-check-flake-inputs.drv
could not copy /nix/store/2g1ayyfrjky5s8zab3kwb54lmqcssnh3-check-flake-inputs: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:65.21.215.17:50051: tcp handshaker shutdown
error: some outputs are unexpectedly invalid