SumType! seemingly results in cryptic error, with dub suggesting to make an issue ticket

[Gimbles]

On Tuesday, 30 May 2023 at 08:47:16 UTC, user456 wrote:
> On Tuesday, 30 May 2023 at 08:42:38 UTC, Gimbles wrote:
>> My code is this
>> [...]
>> Should I make an issue for this as it suggests?
>
> 100% yes. This an "Internal Compiler Error" (ICE), meaning the 
> compiler has crashed.
> Open a ticket here : 
> https://issues.dlang.org/show_bug.cgi?id=23935
>
> with a title like "ICE caused by std.sumtype", and paste the 
> test case.

Alright, thanks! Opening a ticket :)