this derivation will be built:
  /nix/store/pq8by8dl39pzfd2ir9bss7igbda65nwg-check-cgo-flag-tables.drv
could not copy /nix/store/h18qci20cniwsx29hh4084qx35dcdrgk-check-cgo-flag-tables: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv6:%5B2a01:4f9:3071:1fc8::1%5D:50051: Handshake write failed
error: some outputs are unexpectedly invalid