* Should this output be possible (specifically the PC value being somewhere in RAM)?

```
1.000 DEBUG: fw_main || now? None
ExceptionFrame {
    r0: 0x00000000,
    r1: 0x0002bf00,
    r2: 0x20005044,
    r3: 0x20005044,
    r12: 0x0001fff8,
    lr: 0x00027c57,
    pc: 0x20005044,
    xpsr: 0x40000000,
}
```

This is with a simple hardfault handler that just dumps the exception frame.  I'm trying to narrow down the root cause of a hard fault that appears to stem from a problem in nightlies post-20230808 when you debug-format a None value.  (Possibly only with opt\_level "z" but I suspect this is more about things shifting around in memory than specific settings.)