phantun always panicked when used in a few days

[lzfmars]

INFO client > New UDP client from 127.0.0.1:15497
INFO fake_tcp > Sent SYN to server
INFO fake_tcp > Connection to xxx.xxx.xxx.xxx:xxx established
INFO client > New UDP client from 127.0.0.1:63470
thread 'tokio-runtime-worker' panicked at 'assertion failed: tuples.insert(tuple, incoming.clone()).is_none()', /project/fake-tcp/src/lib.rs:425:13
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace
thread 'tokio-runtime-worker' panicked at 'called Result::unwrap() on an Err value: PoisonError { .. }', fake-tcp/src/lib.rs:325:44
stack backtrace:
0: 0x56c79d - std::backtrace_rs::backtrace::libunwind::trace::h081201764674ef17
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: 0x56c79d - std::backtrace_rs::backtrace::trace_unsynchronized::hebab37398c391bd7
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x56c79d - std::sys_common::backtrace::_print_fmt::h301516df68ed24f9
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:66:5
3: 0x56c79d - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h8f5170f4f03a12c0
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:45:22
4: 0x5a4cdc - core::fmt::write::h5dc5601e8d9f6367
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/fmt/mod.rs:1190:17
5: 0x565e88 - std::io::Write::write_fmt::h5b19302eb99d9acf
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/io/mod.rs:1657:15
6: 0x56ebe7 - std::sys_common::backtrace::_print::hd81cf53a75c8ae6a
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:48:5
7: 0x56ebe7 - std::sys_common::backtrace::print::hb5aa882e87c2a0dc
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:35:9
8: 0x56ebe7 - std::panicking::default_hook::{{closure}}::had913369af61b326
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:295:22
9: 0x56e8b0 - std::panicking::default_hook::h37b06af9ee965447
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:314:9
10: 0x56f339 - std::panicking::rust_panic_with_hook::hf2019958d21362cc
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:698:17
11: 0x56f027 - std::panicking::begin_panic_handler::{{closure}}::he9c06fdd592f8785
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:588:13
12: 0x56cc64 - std::sys_common::backtrace::__rust_end_short_backtrace::ha521b96560789310
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:138:18
13: 0x56ed39 - rust_begin_unwind
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:584:5
14: 0x40c363 - core::panicking::panic_fmt::h28f1697d4e9394b4
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/panicking.rs:143:14
15: 0x40c3f3 - core::result::unwrap_failed::hea43ef43a7a8c801
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/result.rs:1749:5
16: 0x4c36b6 - <fake_tcp::Socket as core::ops::drop::Drop>::drop::h1a82aa2a762e6663
17: 0x42769d - core::ptr::drop_in_place<fake_tcp::Socket>::h9642bb5034846e49
18: 0x42d1d6 - client::main::{{closure}}::{{closure}}::hedb1c4db73446abe
19: 0x4108dd - tokio::runtime::task::harness::poll_future::h71e4629bb72ebffa
20: 0x40ec41 - tokio::runtime::task::harness::Harness<T,S>::poll::hd78d455ce817a0c4
21: 0x4fc9f0 - std::thread::local::LocalKey::with::h25d46ec2bd26319e
22: 0x4f3c0d - tokio::runtime::thread_pool::worker::Context::run_task::h89a72a6001d042f4
23: 0x4f2d8f - tokio::runtime::thread_pool::worker::Context::run::h902a2ffa1a9bd051
24: 0x4dea1b - tokio::macros::scoped_tls::ScopedKey::set::h60ccb18cf4ba637e
25: 0x4f280c - tokio::runtime::thread_pool::worker::run::hdaf5742befe30ba0
26: 0x4d80e1 - <tokio::runtime::blocking::task::BlockingTask as core::future::future::Future>::poll::h100ed8d5c3bf1cbf
27: 0x4d9b41 - tokio::runtime::task::harness::Harness<T,S>::poll::hbd3606d2e34d7e90
28: 0x4e2e83 - tokio::runtime::blocking::pool::Inner::run::ha389bc77b977d94f
29: 0x4e096c - std::sys_common::backtrace::__rust_begin_short_backtrace::he288b5cbf780ffc1
30: 0x4e987f - core::ops::function::FnOnce::call_once{{vtable.shim}}::he75549d8b045b827
31: 0x573043 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce>::call_once::hcf019fa04facec20
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/alloc/src/boxed.rs:1853:9
32: 0x573043 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce>::call_once::h5cc542c486f8c3f4
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/alloc/src/boxed.rs:1853:9
33: 0x573043 - std::sys::unix::thread::Thread::new::thread_start::h5d35ae99cebafa12
at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys/unix/thread.rs:108:17
thread panicked while panicking. aborting.

[lzfmars]

phantun_client side

[dndx]

What kind of client do you have? I have never seen this error before and it will be helpful if you can provide more info.

[lzfmars]

client system run in a kvm，Openwrt 21.02.3 from official.
uname -a: Linux OpenWrt 5.4.188 #0 SMP Sat Apr 16 12:59:34 2022 x86_64 GNU/Linux

phantun_client version：
0.5.0，x86_64，musl

start command:
/usr/bin/phantun_client -l 127.0.0.1:1081 -r xxx:xxx --tun tun.trojan --tun-local 192.168.100.1 --tun-local6 fcc1::1 --tun-peer 192.168.100.2 --tun-peer6 fcc1::2

use case：
trojan-go ---> kcptun ---> phantun_client --------------------> phantun_server ---> kcptun ---> trojan-go

[lzfmars]

And I found ipv6 address is not set on tun in openwrt

[dndx]

Do you have high number of new UDP connections all the time? There is a small chance that Phantun might reuse an existing port number and that could cause this assertion failure you showed. How often does these New UDP client from logs appear?

[lzfmars]

Do you have high number of new UDP connections all the time? There is a small chance that Phantun might reuse an existing port number and that could cause this assertion failure you showed. How often does these New UDP client from logs appear?

About 2-3 New UDP client from per minute.

[Theo-Silfa]

Hi! Got same stack tonight:

panicked at 'assertion failed: tuples.insert(tuple, incoming.clone()).is_none()', /project/fake-tcp/src/lib.rs:425:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
thread 'tokio-runtime-worker' panicked at 'called `Result::unwrap()` on an `Err` value: PoisonError { .. }', fake-tcp/src/lib.rs:325:44
stack backtrace:
   0:     0x5615095c583d - std::backtrace_rs::backtrace::libunwind::trace::h9135f25bc195152c
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x5615095c583d - std::backtrace_rs::backtrace::trace_unsynchronized::h015ee85be510df51
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x5615095c583d - std::sys_common::backtrace::_print_fmt::h5fad03caa9652a2c
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:66:5
   3:     0x5615095c583d - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2b42ca28d244e5c7
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:45:22
   4:     0x5615095e2f8c - core::fmt::write::h401e827d053130ed
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/fmt/mod.rs:1198:17
   5:     0x5615095c0831 - std::io::Write::write_fmt::hffec93268f5cde32
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/io/mod.rs:1672:15
   6:     0x5615095c7005 - std::sys_common::backtrace::_print::h180c4c706ee1d3fb
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:48:5
   7:     0x5615095c7005 - std::sys_common::backtrace::print::hd0c35d18765761c9
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:35:9
   8:     0x5615095c7005 - std::panicking::default_hook::{{closure}}::h1f023310983bc730
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:295:22
   9:     0x5615095c6d21 - std::panicking::default_hook::h188fec3334afd5be
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:314:9
  10:     0x5615095c7596 - std::panicking::rust_panic_with_hook::hf26e9d4f97b40096
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:698:17
  11:     0x5615095c7487 - std::panicking::begin_panic_handler::{{closure}}::hfab912107608087a
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:588:13
  12:     0x5615095c5d34 - std::sys_common::backtrace::__rust_end_short_backtrace::h434b685ce8d9965b
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:138:18
  13:     0x5615095c71b9 - rust_begin_unwind
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:584:5
  14:     0x56150945f663 - core::panicking::panic_fmt::ha6dc7f2ab2479463
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panicking.rs:142:14
  15:     0x56150945f753 - core::result::unwrap_failed::h42ad8e915aa0a906
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/result.rs:1814:5
  16:     0x56150950cae1 - <fake_tcp::Socket as core::ops::drop::Drop>::drop::h19e2e075513180a0
  17:     0x56150947d43d - core::ptr::drop_in_place<fake_tcp::Socket>::ha967b200bc38b151
  18:     0x5615094806e6 - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::h03c38917dad1c848
  19:     0x56150946812c - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc8b45a1f819e7f31
  20:     0x561509462b8a - tokio::runtime::task::harness::Harness<T,S>::poll::hf9aa08af6be609ae
  21:     0x561509552f25 - std::thread::local::LocalKey<T>::with::ha7b80a901bf9e81b
  22:     0x561509546d0d - tokio::runtime::scheduler::multi_thread::worker::Context::run_task::h650b7cb2bf218561
  23:     0x561509545fc0 - tokio::runtime::scheduler::multi_thread::worker::Context::run::hfa733f6a2e0eb109
  24:     0x56150954b487 - tokio::macros::scoped_tls::ScopedKey<T>::set::hc0a769405f79e976
  25:     0x561509545a89 - tokio::runtime::scheduler::multi_thread::worker::run::h7a48bbe89036a0a7
  26:     0x5615095433f1 - <tokio::runtime::blocking::task::BlockingTask<T> as core::future::future::Future>::poll::h4f1627be177f482f
  27:     0x56150952ef09 - tokio::runtime::task::harness::Harness<T,S>::poll::h978af0f4f4ebe3e9
  28:     0x561509542c55 - tokio::runtime::blocking::pool::Inner::run::h781931038d2c6d58
  29:     0x5615095353c2 - std::sys_common::backtrace::__rust_begin_short_backtrace::hddca8cca672b70a3
  30:     0x56150953849f - core::ops::function::FnOnce::call_once{{vtable.shim}}::h3de090dace688788
  31:     0x5615095ca1f3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h56d5fc072706762b
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/alloc/src/boxed.rs:1935:9
  32:     0x5615095ca1f3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h41deef8e33b824bb
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/alloc/src/boxed.rs:1935:9
  33:     0x5615095ca1f3 - std::sys::unix::thread::Thread::new::thread_start::ha6436304a1170bba
                               at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys/unix/thread.rs:108:17
  34:     0x7f7d2efd4ac3 - <unknown>
  35:     0x7f7d2f066850 - <unknown>
  36:                0x0 - <unknown>
thread panicked while panicking. aborting.
phantun.service: Main process exited, code=killed, status=6/ABRT
phantun.service: Failed with result 'signal'.
phantun.service: Consumed 1h 59min 36.441s CPU time.

OS is the Ubuntu 22.04.4 LTS:

Linux 1893537-sh48322.twc1.net 5.15.0-112-generic #122-Ubuntu SMP Thu May 23 07:48:21 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

Client version:

Phantun Client 0.6.0

Start command:

/usr/local/bin/phantun_client --local 0.0.0.0:<localport> --remote <remoteip>:<remoteport>

Usage:
I do not use anything special, just redirecting Wireguard traffic to remote server
Reproducibility:
I've updated to 0.6.0 in April. This crash is a first time in three months.

[dndx]

Please give #162 a try, I think this will address your issue.

If it works well, I will publish a new release with the fix.