Guile support on GDB has been disabled for quite some time, but it's possible to reenable it now. This bug is just a tracking bug for this task.
FEDORA-2020-992574ec53 has been submitted as an update to Fedora 31. https://bodhi.fedoraproject.org/updates/FEDORA-2020-992574ec53
gdb-8.3.50.20190824-27.fc31 has been pushed to the Fedora 31 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-992574ec53
gdb-8.3.50.20190824-27.fc31 has been pushed to the Fedora 31 stable repository. If problems still persist, please make note of it in this bug report.