[Issue 13871] New: [REG] Segmentation fault from std/variant.d:609

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13871

          Issue ID: 13871
           Summary: [REG] Segmentation fault from std/variant.d:609
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: regression
          Priority: P1
         Component: Phobos
          Assignee: nobody at puremagic.com
          Reporter: public at dicebot.lv

DMD 8597cda, matching master Phobos

Doing `dub test` for https://github.com/Dicebot/libsdl-d results in
segmentation faul.

07:06:18 {master} ~/devel/libsdl-d$ gdb ./__test__library__ 
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Reading symbols from ./__test__library__...done.
(gdb) run
Starting program: /home/dicebot/devel/libsdl-d/__test__library__ 
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Unittesting sdlang ast...

Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0  0x0000000000000000 in ?? ()
#1  0x0000000000595481 in
_D3std7variant178__T8VariantNVmi32TbTAyaTwTiTlTfTdTeTS3std8datetime4DateTS4lang3sdl5token12DateTimeFracTS3std8datetime7SysTimeTS4lang3sdl5token23DateTimeFracUnknownZoneTS4core4time8DurationTAhTnZ8VariantN217__T8opAssignTS3std7variant178__T8VariantNVmi32TbTAyaTwTiTlTfTdTeTS3std8datetime4DateTS4lang3sdl5token12DateTimeFracTS3std8datetime7SysTimeTS4lang3sdl5token23DateTimeFracUnknownZoneTS4core4time8DurationTAhTnZ8VariantNZ8opAssignMFNeS3std7variant178__T8VariantNVmi32TbTAyaTwTiTlTfTdTeTS3std8datetime4DateTS4lang3sdl5token12DateTimeFracTS3std8datetime7SysTimeTS4lang3sdl5token23DateTimeFracUnknownZoneTS4core4time8DurationTAhTnZ8VariantNZS3std7variant178__T8VariantNVmi32TbTAyaTwTiTlTfTdTeTS3std8datetime4DateTS4lang3sdl5token12DateTimeFracTS3std8datetime7SysTimeTS4lang3sdl5token23DateTimeFracUnknownZoneTS4core4time8DurationTAhTnZ8VariantN
(this=0x7ffff7ecab90, __HID71=0x7ffff7ff2540, rhs=...)
    at /home/dicebot/devel/dlang/phobos/std/variant.d:609
#2  0x000000000058ae51 in
lang.sdl.parser.ValueEvent.opAssign(lang.sdl.parser.ValueEvent)
(this=0x7ffff7ecab70, p=...)
    at source/lang/sdl/parser.d:160
#3  0x00000000005a471c in
_D3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantN42__T7handlerTS4lang3sdl6parser10ValueEventZ7handlerFNeE3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantN4OpIDPG104hPvZ10tryPuttingFPS4lang3sdl6parser10ValueEventC8TypeInfoPvZb
(target=0x7ffff7ecab70, 
    targetType=0x828ac0 <TypeInfo_S4lang3sdl6parser10ValueEvent.init$>,
src=0x7ffff7ff27a8)
    at /home/dicebot/devel/dlang/phobos/std/variant.d:334
#4  0x00000000005a424a in
_D3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantN42__T7handlerTS4lang3sdl6parser10ValueEventZ7handlerFNeE3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantN4OpIDPG104hPvZl
(parm=0x7ffff7ecab68, 
    pStore=0x7ffff7ff27a8, selector=<incomplete type>) at
/home/dicebot/devel/dlang/phobos/std/variant.d:365
#5  0x0000000000596342 in
_D3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantN252__T8opAssignTS3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantNZ8opAssignMFNeS3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantNZS3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantN
(this=0x7ffff7ecab68, __HID74=0x7ffff7ff2828, rhs=...)
    at /home/dicebot/devel/dlang/phobos/std/variant.d:613
#6  0x000000000058a85f in
_D4lang3sdl15libInputVisitor287__T12InputVisitorTS4lang3sdl6parser10PullParserTS3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantNZ12InputVisitor5yieldMFS3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantNZv
(this=0x7ffff7ecab00, elem=...) at source/lang/sdl/libInputVisitor.d:79
#7  0x000000000058c786 in
_D4lang3sdl6parser10PullParser39__T4emitTS4lang3sdl6parser10ValueEventZ4emitMFS4lang3sdl6parser10ValueEventZv
(this=0x7fffffff1440, event=...) at
/home/dicebot/devel/dlang/phobos/std/variant.d:194
#8  0x000000000058bb1c in lang.sdl.parser.PullParser.parseValue()
(this=0x7fffffff1440) at source/lang/sdl/parser.d:371
#9  0x000000000058ba6a in lang.sdl.parser.PullParser.parseValues()
(this=0x7fffffff1440)
    at source/lang/sdl/parser.d:351
#10 0x000000000058b79e in lang.sdl.parser.PullParser.parseTag()
(this=0x7fffffff1440) at source/lang/sdl/parser.d:286
#11 0x000000000058b562 in lang.sdl.parser.PullParser.parseTags()
(this=0x7fffffff1440) at source/lang/sdl/parser.d:240
#12 0x000000000058b468 in lang.sdl.parser.PullParser.parseRoot()
(this=0x7fffffff1440) at source/lang/sdl/parser.d:219
#13 0x000000000058b3ca in
_D4lang3sdl6parser10PullParser5visitMFC4lang3sdl15libInputVisitor287__T12InputVisitorTS4lang3sdl6parser10PullParserTS3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantNZ12InputVisitorZv
(this=0x7fffffff1440, v=0x7ffff7ecab00) at source/lang/sdl/parser.d:201
#14 0x000000000058a6fb in
_D4lang3sdl15libInputVisitor287__T12InputVisitorTS4lang3sdl6parser10PullParserTS3std7variant213__T8VariantNVmi104TS4lang3sdl6parser14FileStartEventTS4lang3sdl6parser12FileEndEventTS4lang3sdl6parser13TagStartEventTS4lang3sdl6parser11TagEndEventTS4lang3sdl6parser10ValueEventTS4lang3sdl6parser14AttributeEventZ8VariantNZ12InputVisitor3runMFZv
(this=0x7ffff7ecab00) at source/lang/sdl/libInputVisitor.d:45
#15 0x00000000005e14ba in core.thread.Fiber.run() ()
#16 0x00000000005e13cd in fiber_entryPoint ()
#17 0x0000000000000000 in ?? ()

This is regression from 2.066.1, I have not found what exactly has introduced
it though

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