Troubleshooting DUB invocations

[Dukc]

On Wednesday, 13 November 2019 at 15:41:01 UTC, Sebastiaan Koppe 
wrote:
> It has been on the back of my mind since 1.18-beta came out. I 
> am going to reserve a little time tomorrow to work on it.

Regarding that, perhaps I can save you a bit trouble if you also 
try to get 1.19 working: if you get compile errors related to 
SortedRange, the fix is https://github.com/dlang/phobos/pull/7266.