[Bug]: Crash in PostUserFeedback - Mapbox Navigation SDK

Nobody has claimed this yet.

### Mapbox Navigation SDK version

3.9.2

### Steps to reproduce

-

### Expected behavior

The App should not crash

### Actual behavior

The app crashes.

## Environment

- Xcode version: 15.3
- iOS version: 18.5.0
- Devices affected: iPhone 13 Pro Max
- Orientation: Portrait
- Jailbroken: No
- RAM Free: 1004.25 MB

## Observed behavior

A crash occurred in production on June 9, 2025, at 14:03:28 on an iPhone 13 Pro Max running iOS 18.5.0. The crash is consistently triggered from within Mapbox's native telemetry layer during a call to `postUserFeedback`.

### Stack trace excerpt:
``` console
Crashed: com.apple.root.utility-qos
0 MapboxNavigationNative 0x96ecc4 mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 9172188
1 MapboxNavigationNative 0x96f054 mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 9173100
2 MapboxNavigationNative 0x96f93c mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 9175380
3 MapboxNavigationNative 0x970e60 mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 9180792
4 MapboxNavigationNative 0xb99e64 XXH64_hashFromCanonical + 632368
5 MapboxNavigationNative 0xb65350 XXH64_hashFromCanonical + 416540
6 MapboxNavigationNative 0xb67dec XXH64_hashFromCanonical + 427448
7 MapboxNavigationNative 0xb668cc XXH64_hashFromCanonical + 422040
8 MapboxNavigationNative 0xb64560 XXH64_hashFromCanonical + 412972
9 MapboxNavigationNative 0xb63578 XXH64_hashFromCanonical + 408900
10 MapboxNavigationNative 0x6d4dac mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 6444484
11 MapboxNavigationNative 0x6d3598 mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 6438320
12 MapboxNavigationNative 0x6aa388 mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 6269856
13 MapboxNavigationNative 0x6b33f0 mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 6306824
14 MapboxNavigationNative 0x6a9650 mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 6266472
15 MapboxNavigationNative 0x6ad4f4 mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 6282508
16 MapboxNavigationNative 0x6b7d58 mapbox::bindgen::mapbox::navigation::telemetry::Telemetry::postUserFeedback(mapbox::navigation::telemetry::UserFeedbackMetadata&&, mapbox::navigation::telemetry::UserFeedback&&, std::__1::function, std::__1::basic_string, std::__1::allocator>> const&)>&&) + 6325616
17 MapboxCommon 0x1a68dc mapbox::common::internal::scheduler::override::Set(std::__1::function (mapbox::common::ThreadServiceType)>, std::__1::function> (mapbox::common::ThreadServiceType)>, std::__1::function> (mapbox::common::Scheduler::DestructionPolicy, mapbox::common::ThreadServiceType)>) + 3628
18 MapboxCommon 0x171fb0 mapbox::common::platform::processTask(std::__1::function const&) + 2956
19 libdispatch.dylib 0x1aac _dispatch_call_block_and_release + 32
20 libdispatch.dylib 0x1b584 _dispatch_client_callout + 16
21 libdispatch.dylib 0x37eb0 _dispatch_channel_invoke.cold.5 + 32
22 libdispatch.dylib 0x13f24 _dispatch_root_queue_drain + 736
23 libdispatch.dylib 0x1454c _dispatch_worker_thread2 + 156
24 libsystem_pthread.dylib 0x9d0 _pthread_wqthread + 232
25 libsystem_pthread.dylib 0xaac start_wqthread + 8
```

### Is this a one-time issue or a repeatable issue?

repeatable

Start by reproducing the repeatable crash on the reported Mapbox Navigation SDK 3.9.2, Xcode 15.3, iOS 18.5.0, and iPhone 13 Pro Max environment. Trace the `postUserFeedback` entry point and the provided native telemetry stack; done means the app no longer crashes during this call and the behavior is verified against the reported scenario.

Written by the indexing model from the issue text.