On Tuesday, 18 December 2018 at 16:19:33 UTC, unDEFER wrote: > Yes, thank you for the hint. You are almost right. I did not > ENABLE_DEBUG=1, but I also did not ENABLE_RELEASE=1 > > So it is the bug. I will report about it. https://issues.dlang.org/show_bug.cgi?id=19500