these 2 derivations will be built:
  /nix/store/lmd38ni6x8821w3jbk8pbqpkzm0mi49h-flake-inputs.drv
  /nix/store/gqmcsv2w8kp85dxvc16piw9rm57kjn88-check-flake-inputs.drv
farm.numtide.com:50051: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.2:50051: tcp handshaker shutdown, retrying
could not copy /nix/store/5p5mily28gikqa0qn8f2mmh5zvdqhxy2-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