$ cargo r --features=llvm -p wasmer-cli run --disable-cache cowsay aa
...
(gdb) bt
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1  0x00007f45e62989d3 in __pthread_kill_internal (threadid=<optimized out>, signo=6) at pthread_kill.c:89
#2  0x00007f45e623e3a0 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#3  0x00007f45e622557a in __GI_abort () at abort.c:77
#4  0x00007f45e65a211e in __deregister_frame_info_bases (begin=<optimized out>) at /usr/src/debug/gcc/gcc/libgcc/unwind-dw2-fde.c:296
#5  __deregister_frame_info_bases (begin=<optimized out>) at /usr/src/debug/gcc/gcc/libgcc/unwind-dw2-fde.c:230
#6  0x00007f45e65c308a in __deregister_frame (begin=<optimized out>) at /usr/src/debug/gcc/gcc/libgcc/unwind-dw2-fde.c:311
#7  0x0000558cf6957081 in wasmer_compiler::engine::unwind::systemv::{impl#1}::drop (self=0x7f456409d6e0) at lib/compiler/src/engine/unwind/systemv.rs:261
#8  0x0000558cf694ff17 in core::ptr::drop_in_place<wasmer_compiler::engine::unwind::systemv::UnwindRegistry> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#9  0x0000558cf694f36f in core::ptr::drop_in_place<wasmer_compiler::engine::code_memory::CodeMemory> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#10 0x0000558cf695006d in core::ptr::drop_in_place<[wasmer_compiler::engine::code_memory::CodeMemory]> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#11 0x0000558cf6951d13 in alloc::vec::{impl#25}::drop<wasmer_compiler::engine::code_memory::CodeMemory, alloc::alloc::Global> (self=0x558d09921878)
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/vec/mod.rs:3804
#12 0x0000558cf6950ed7 in core::ptr::drop_in_place<alloc::vec::Vec<wasmer_compiler::engine::code_memory::CodeMemory, alloc::alloc::Global>> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#13 0x0000558cf694ea8b in core::ptr::drop_in_place<wasmer_compiler::engine::inner::EngineInner> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#14 0x0000558cf69511ab in core::ptr::drop_in_place<core::cell::UnsafeCell<wasmer_compiler::engine::inner::EngineInner>> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#15 0x0000558cf694b38f in core::ptr::drop_in_place<std::sync::poison::mutex::Mutex<wasmer_compiler::engine::inner::EngineInner>> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#16 0x0000558cf692b4a2 in alloc::sync::Arc<std::sync::poison::mutex::Mutex<wasmer_compiler::engine::inner::EngineInner>, alloc::alloc::Global>::drop_slow<std::sync::poison::mutex::Mutex<wasmer_compiler::engine::inner::EngineInner>, alloc::alloc::Global> (self=0x558d0988aa08)
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/sync.rs:1943
#17 0x0000558cf6951f8d in alloc::sync::{impl#38}::drop<std::sync::poison::mutex::Mutex<wasmer_compiler::engine::inner::EngineInner>, alloc::alloc::Global> (
    self=0x558d0988aa08) at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/sync.rs:2686
#18 0x0000558cf694bf9b in core::ptr::drop_in_place<alloc::sync::Arc<std::sync::poison::mutex::Mutex<wasmer_compiler::engine::inner::EngineInner>, alloc::alloc::Global>> () at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#19 0x0000558cf694e43b in core::ptr::drop_in_place<wasmer_compiler::engine::inner::Engine> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#20 0x0000558cf57d3a49 in core::ptr::drop_in_place<wasmer::entities::engine::inner::BackendEngine> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#21 0x0000558cf57d329b in core::ptr::drop_in_place<wasmer::entities::engine::Engine> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#22 0x0000558cf51e9b33 in core::ptr::drop_in_place<wasmer_wasix::runtime::PluggableRuntime> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#23 0x0000558cf51a4ded in core::ptr::drop_in_place<(dyn wasmer_wasix::runtime::Runtime + core::marker::Send + core::marker::Sync)> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#24 0x0000558cf5287280 in alloc::sync::Arc<(dyn wasmer_wasix::runtime::Runtime + core::marker::Send + core::marker::Sync), alloc::alloc::Global>::drop_slow<(dyn wasmer_wasix::runtime::Runtime + core::marker::Send + core::marker::Sync), alloc::alloc::Global> (self=0x7f456d1e2fc8)
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/sync.rs:1943
#25 0x0000558cf51fb41d in alloc::sync::{impl#38}::drop<(dyn wasmer_wasix::runtime::Runtime + core::marker::Send + core::marker::Sync), alloc::alloc::Global> (
    self=0x7f456d1e2fc8) at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/sync.rs:2686
#26 0x0000558cf51ae33b in core::ptr::drop_in_place<alloc::sync::Arc<(dyn wasmer_wasix::runtime::Runtime + core::marker::Send + core::marker::Sync), alloc::alloc::Global>> () at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:524
#27 0x0000558cf4ca8603 in wasmer_wasix::bin_factory::exec::call_module (ctx=..., store=..., handle=..., rewind_state=..., recycle=...)
    at lib/wasix/src/bin_factory/exec.rs:393
#28 0x0000558cf4ca2622 in wasmer_wasix::bin_factory::exec::run_exec (props=...) at lib/wasix/src/bin_factory/exec.rs:231
#29 0x0000558cf5199b8d in core::ops::function::FnOnce::call_once<fn(wasmer_wasix::runtime::task_manager::TaskWasmRunProperties), (wasmer_wasix::runtime::task_manager::TaskWasmRunProperties)> () at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:250
#30 0x0000558cf519690c in core::ops::function::FnOnce::call_once<fn(wasmer_wasix::runtime::task_manager::TaskWasmRunProperties), (wasmer_wasix::runtime::task_manager::TaskWasmRunProperties)> () at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:250
#31 0x0000558cf529b909 in alloc::boxed::{impl#28}::call_once<(wasmer_wasix::runtime::task_manager::TaskWasmRunProperties), (dyn core::ops::function::FnOnce<(wasmer_wasix::runtime::task_manager::TaskWasmRunProperties), Output=()> + core::marker::Send), alloc::alloc::Global> (self=..., args=...)
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/boxed.rs:1966
#32 0x0000558cf536fda1 in wasmer_wasix::runtime::task_manager::tokio::{impl#8}::task_wasm::{closure#2} () at lib/wasix/src/runtime/task_manager/tokio.rs:300
#33 0x0000558cf519657e in core::ops::function::FnOnce::call_once<wasmer_wasix::runtime::task_manager::tokio::{impl#8}::task_wasm::{closure_env#2}, ()> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:250
#34 0x0000558cf546ae48 in alloc::boxed::{impl#28}::call_once<(), (dyn core::ops::function::FnOnce<(), Output=()> + core::marker::Send), alloc::alloc::Global> (
    self=..., args=()) at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/boxed.rs:1966
#35 0x0000558cf54739b6 in rusty_pool::Worker::exec_task_and_notify (self=0x7f456d1e7580, sentinel=0x7f456d1e74c0, task=...) at src/lib.rs:1119
#36 0x0000558cf5473641 in rusty_pool::{impl#10}::start::{closure#0} () at src/lib.rs:1085
#37 0x0000558cf5463f26 in std::sys::backtrace::__rust_begin_short_backtrace<rusty_pool::{impl#10}::start::{closure_env#0}, ()> (
    f=<error reading variable: Cannot access memory at address 0x3f8604>)
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/sys/backtrace.rs:152
#38 0x0000558cf547a4ba in std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure#0}<rusty_pool::{impl#10}::start::{closure_env#0}, ()> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/thread/mod.rs:559
#39 0x0000558cf54617a1 in core::panic::unwind_safe::{impl#23}::call_once<(), std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rusty_pool::{impl#10}::start::{closure_env#0}, ()>> (self=...)
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/panic/unwind_safe.rs:272
#40 0x0000558cf54641cc in std::panicking::try::do_call<core::panic::unwind_safe::AssertUnwindSafe<std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rusty_pool::{impl#10}::start::{closure_env#0}, ()>>, ()> (data=0x7f456d1e7918)
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:589
#41 0x0000558cf547accb in __rust_try ()
#42 0x0000558cf5479efa in std::panicking::try<(), core::panic::unwind_safe::AssertUnwindSafe<std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rusty_pool::{impl#10}::start::{closure_env#0}, ()>>> (f=...)
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:552
#43 std::panic::catch_unwind<core::panic::unwind_safe::AssertUnwindSafe<std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rusty_pool::{impl#10}::start::{closure_env#0}, ()>>, ()> (f=...) at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panic.rs:359
#44 std::thread::{impl#0}::spawn_unchecked_::{closure#1}<rusty_pool::{impl#10}::start::{closure_env#0}, ()> ()
    at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/thread/mod.rs:557
#45 0x0000558cf546490f in core::ops::function::FnOnce::call_once<std::thread::{impl#0}::spawn_unchecked_::{closure_env#1}<rusty_pool::{impl#10}::start::{closure_env#0}, ()>, ()> () at /home/marxin/.rustup/toolchains/1.88-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:250
#46 0x0000558cf7fa373b in alloc::boxed::{impl#28}::call_once<(), dyn core::ops::function::FnOnce<(), Output=()>, alloc::alloc::Global> ()
    at library/alloc/src/boxed.rs:1966
#47 alloc::boxed::{impl#28}::call_once<(), alloc::boxed::Box<dyn core::ops::function::FnOnce<(), Output=()>, alloc::alloc::Global>, alloc::alloc::Global> ()
    at library/alloc/src/boxed.rs:1966
#48 std::sys::pal::unix::thread::{impl#2}::new::thread_start () at library/std/src/sys/pal/unix/thread.rs:97
#49 0x00007f45e629698b in start_thread (arg=<optimized out>) at pthread_create.c:448
#50 0x00007f45e631a9cc in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78