message: Try loopback
diff: @@ -74,7 +74,7 @@ jobs:
  - run:
  name: Command-line Utilities
  command: |
  - cargo run --bin neqo-server -- '[::]:4433' & spid=$!; \
  + cargo run --bin neqo-server -- '[::1]:4433' & spid=$!; \
  cargo run --bin neqo-client -- 'https://[::1]:4433/'; r=$?; \
  kill -9 $spid; [ "$r" -eq 0 ]
  