https://issues.dlang.org/show_bug.cgi?id=18953
--- Comment #1 from Rainer Schuetze <r.sagita...@gmx.de> --- Probalby happens because TypeInfo_Struct.destroy doesn't use the expected __thiscall calling convention: https://github.com/dlang/druntime/blob/master/src/object.d#L2010 --