[Bug target/125312] [16 Regression] x86_64-w64-mingw32: weak_ptr::lock() / shared_from_this() multi-thread stress fails

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125312

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Yeah I saw that, but it doesn't tell us anything useful. Probably because
Windows.

If a __glibcxx_assert or _GLIBCXX_DEBUG assertion fails, it's supposed to print
out a message along with the enclosing function name, file name, line number,
etc.