Commit c6f501d fixed an issue where some tests were incorrectly marked as unsupported for a bootstrapping build. This exposed on our bootstrap builder that fdr-mode.cpp actually fails at RISC-V, I believe because we miss an _xray_ArgLoggerEntry.
This issue is being filed so it's at least noted and can be tracked. The test has been marked as UNSUPPORTED for now, so there is no immediate need to address in any other way.