https://issues.dlang.org/show_bug.cgi?id=11329

--- Comment #1 from Kenji Hara <k.hara.pg@gmail.com> ---
(In reply to Andrej Mitrovic from comment #0)
> but for some reason its dtor /is/
> called, however only in a situation when it's nested in a class.

The dtor is called from druntime during process finalization.
By inserting a print line at the end of main, you can confirm that.

void main()
{
    //// S dtor not called (ok, because its ctor failed)
    //assertThrown!Exception(S(1));

    // S dtor called even though S object was not
    // properly initialized (ctor failed)
    assertThrown!Exception(new C());

    stderr.writeln("end main");
}

Prints:

$ dmd -run test
end main
S dtor -- _x: 1

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https://issues.dlang.org/show_bug.cgi?id=11329

--- Comment #2 from dlangBugzillaToGithub <robert.schadek@posteo.de> ---
THIS ISSUE HAS BEEN MOVED TO GITHUB

https://github.com/dlang/dmd/issues/18701

DO NOT COMMENT HERE ANYMORE, NOBODY WILL SEE IT, THIS ISSUE HAS BEEN MOVED TO GITHUB

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