panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x2a pc=0x468863]
```
+This is a segfault, not a normal Go panic, so something has gone horribly wrong.
Note that the address that caused the segfault is `0x2a`, the hex representation of 42.
What is happening here?