[Bug rust/107633] [13 regression] Bootstrap failure due to -Werror=unused-parameter and -Werror=dangling-reference

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107633

--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
https://gcc.gnu.org/pipermail/gcc-patches/2022-November/605800.html, if
accepted, should help.