[Issue 16352] dead-lock in std.allocator.free_list unittest

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16352

--- Comment #5 from John Colvin <john.loughran.colvin at gmail.com> ---
It seems that all the threads exit but (in my tests) one message either is
never sent or is never received by the main thread, so it sits in
receiveOnly!bool

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