Rollup of 4 pull requests#146625

Closed

Zalathar wants to merge 9 commits intorust-lang:masterfrom

Zalathar:rollup-hrqdohi

Commits on Jul 8, 2025

Fix backtraces with `-C panic=abort` on linux; emit unwind tables by default
Enselic
committed

Commits on Sep 14, 2025

Commits on Sep 15, 2025

tests/run-make: Update list of statically linked musl targets
Gelbpunkt
committed
remove FIXME from `has_significant_drop`, replaced with checking non_region_infer
tnuha
committed