Rollup merge of #122847 - workingjubilee:suggest-rust-min-stack-workaround-on-overflow, r=TaKO8Ki

Suggest `RUST_MIN_STACK` workaround on overflow

For some Rust crates, like p384, we can't do a whole lot about it even if the stack overflow is reported like in rust-lang/rust#122357 because the problem may be inside LLVM or another codegen backend. We can, however, suggest people set a new `RUST_MIN_STACK` value while handling the SIGSEGV, as that stack-setting will carry forward into the dylib.

As a bonus, this also leads to cleaning up the stack-setting code a bit.

Author: matthiaskrgr