See https://github.com/haskell-works/network/pull/2/checks?check_run_id=1157841677

Also there is a PR #486 to enable Github Workflows for the project which gets you Windows and MacOS Builds as well to catch these kinds of errors.

There is an exclusion for ghc-8.8.3 on Windows, in the workflow that can be removed once it is fixed.