Bug 22791 – std\socket.d(790) Heisenbug random failure

Randomly appears in Azure Windows_DMD_latest x64 --- core.exception.AssertError@std\socket.d(790): unittest failure ---------------- 0x00007FF6D72A17F8 in d_unittestp 0x00007FF6D68A8F8F in std.socket.__unittest_L773_C7 at D:\a\1\phobos\std\socket.d(791) 0x00007FF6D68B8CBC in void std.socket.__modtest() 0x00007FF6D72C5159 in int core.runtime.runModuleUnitTests().__foreachbody2(object.ModuleInfo*) 0x00007FF6D72BD847 in int object.ModuleInfo.opApply(scope int delegate(object.ModuleInfo*)).__lambda2(immutable(object.ModuleInfo*)) 0x00007FF6D72C87C4 in int rt.minfo.moduleinfos_apply(scope int delegate(immutable(object.ModuleInfo*))).__foreachbody2(ref rt.sections_win64.SectionGroup) 0x00007FF6D72C872F in int rt.minfo.moduleinfos_apply(scope int delegate(immutable(object.ModuleInfo*))) 0x00007FF6D72BD807 in int object.ModuleInfo.opApply(scope int delegate(object.ModuleInfo*)) 0x00007FF6D72C4FA3 in runModuleUnitTests 0x00007FF6D72B8F85 in void rt.dmain2._d_run_main2(char[][], ulong, extern (C) int function(char[][])*).runAll() 0x00007FF6D72B8EDF in void rt.dmain2._d_run_main2(char[][], ulong, extern (C) int function(char[][])*).tryExec(scope void delegate()) 0x00007FF6D72B8CC6 in d_run_main2 0x00007FF6D7299039 in d_run_main 0x00007FF6D4D6EC42 in unittest._d_cmain!().main at D:\a\1\phobos\../druntime\import\core\internal\entrypoint.d(30) 0x00007FF6D7396B58 in __scrt_common_main_seh at d:\a01\_work\12\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl(288) 0x00007FF952437974 in BaseThreadInitThunk 0x00007FF953CFA2F1 in RtlUserThreadStart 1/133 modules FAILED unittests --- errorlevel 1

@WalterBright created dlang/phobos pull request #8388 "fix Issue 22791 - std\socket.d(790) Heisenbug random failure" fixing this issue: - fix Issue 22791 - std\socket.d(790) Heisenbug random failure https://github.com/dlang/phobos/pull/8388

dlang/phobos pull request #8388 "fix Issue 22791 - std\socket.d(790) Heisenbug random failure" was merged into master: - cc6f2d4dd9f70b46ba7591cbb9502fccc630e8c0 by Walter Bright: fix Issue 22791 - std\socket.d(790) Heisenbug random failure https://github.com/dlang/phobos/pull/8388