```rust trap at Instance { def: Item(DefId(2:13710 ~ core[b9f2]::core_arch::x86::sse2::_mm_packs_epi32)), args: [] } (_ZN4core9core_arch3x864sse215_mm_packs_epi3217hba4b3ff5de2eb293E): llvm.x86.sse2.packssdw.128 ``` to repro: clone [fimg](https://github.com/bend-n/fimg), run `cargo test nearest`.
