ReaLearn: BorrowError when learning source

[helgoboss]

User Jordan reported:

Working in realearn to get this P1 Nano setup, this error just popped up when making a preset for reaeq. It appeared when I learned the motorized fader to a new mapping for the reaeq preset I'm working on

--- cut ---
REAPER version:      7.27/x64
Module name:         Helgobox
Module version:      v2.16.14/x86_64 rev f9f6bc (2024-11-06 21:24:42 UTC)
Module path:         C:\Reaper Portable - 7.27 - 11.25.24\UserPlugins\FX\helgobox-x64.dll
Module base address: 0x7ff9b2f00000
Module size:         0x2e2c000

Message: already mutably borrowed: BorrowError

   0:     0x7ff9b4a74954 - DllMain
   1:     0x7ff9b4a747ec - DllMain
   2:     0x7ff9b49f19ab - DllMain
   3:     0x7ff9b4c9107b - cpp_to_rust_PCM_source_Extended
   4:     0x7ff9b4c90e86 - cpp_to_rust_PCM_source_Extended
   5:     0x7ff9b4c8ef7f - cpp_to_rust_PCM_source_Extended
   6:     0x7ff9b4c90a66 - cpp_to_rust_PCM_source_Extended
   7:     0x7ff9b4fb27c4 - hid_write
   8:     0x7ff9b4fb2704 - hid_write
   9:     0x7ff9b3a99448 - invoke_host
  10:     0x7ff9b3c97b13 - MAIN
  11:     0x7ff9b39249bd - invoke_host
  12:     0x7ff9b406aa4b - DllMain
  13:     0x7ff9b32ba9e9 - <unknown>
  14:     0x7ff9b3a1d670 - invoke_host
  15:     0x7ff9b4a11583 - DllMain
  16:     0x7ff9b3bce245 - MAIN
  17:     0x7ff9b4b4c4ef - cpp_to_rust_PCM_source_Extended
  18:     0x7ff9b4b2d86f - cpp_to_rust_IReaperControlSurface_Run
  19:        0x1403393c1 - <unknown>
  20:        0x14020812f - <unknown>
  21:        0x14020787a - <unknown>
  22:        0x14020708b - <unknown>
  23:        0x1404c38cf - <unknown>
  24:     0x7ffa5fb63170 - ScreenToClient
  25:     0x7ffa5fb62912 - ScreenToClient
  26:     0x7ffa5fba9ec9 - UnpackDDElParam
  27:     0x7ffa5fb5ef5c - CallWindowProcW
  28:     0x7ffa5fb5e9de - CallWindowProcW
  29:     0x7ff99d88f4ea - <unknown>
  30:     0x7ff99d88f1e9 - <unknown>
  31:     0x7ff99d8673c0 - <unknown>
  32:     0x7ffa5fb5ef5c - CallWindowProcW
  33:     0x7ffa5fb5e9de - CallWindowProcW
  34:     0x7ff9ff08e226 - FT_Trace_Set_Default_Level
  35:     0x7ffa5fb5ef5c - CallWindowProcW
  36:     0x7ffa5fb5e8cc - DispatchMessageW
  37:     0x7ffa5fb710c3 - SendMessageTimeoutW
  38:     0x7ffa61bd1374 - KiUserCallbackDispatcher
  39:     0x7ffa5f7db144 - NtUserTrackPopupMenuEx
  40:     0x7ffa5fbc5ebb - TrackPopupMenu
  41:     0x7ff9b4b4850c - cpp_to_rust_PCM_source_Extended
  42:     0x7ff9b460ca48 - DllMain
  43:     0x7ff9b331918f - NSEEL_HOSTSTUB_EnterMutex
  44:     0x7ff9b3aac4ca - invoke_host
  45:     0x7ff9b460e079 - DllMain
  46:     0x7ffa5fb63170 - ScreenToClient
  47:     0x7ffa5fb62912 - ScreenToClient
  48:     0x7ffa5fb62826 - ScreenToClient
  49:     0x7ffa5fb5ef5c - CallWindowProcW
  50:     0x7ffa5fb5e8cc - DispatchMessageW
  51:     0x7ffa5fb710c3 - SendMessageTimeoutW
  52:     0x7ffa61bd1374 - KiUserCallbackDispatcher
  53:     0x7ffa5f7d1124 - NtUserMessageCall
  54:     0x7ffa5fb5e0d3 - SendMessageW
  55:     0x7ffa5fb5d814 - SendMessageW
  56:     0x7ffa51362457 - ImageList_LoadImageW
  57:     0x7ffa513720e0 - ImageList_WriteEx
  58:     0x7ffa5fb5ef5c - CallWindowProcW
  59:     0x7ffa5fb5e684 - DispatchMessageW
  60:        0x1404ba8b0 - <unknown>
  61:        0x140acd671 - <unknown>
  62:     0x7ffa60fb7374 - BaseThreadInitThunk
  63:     0x7ffa61b7cc91 - RtlUserThreadStart
--- cut ---

[helgoboss]

With symbols resolved:

Attempting to resolve symbols for 64 addresses
==============================================
        
0: 7ff9b4a74954
-----------------------------------
            
Relative: Some(1b74954)
Ours absolute: Some(7ffbd0394954)

7ffbd0394931
backtrace::backtrace::dbghelp64::trace
C:\Users\runneradmin\.cargo\registry\src\index.crates.io-6f17d22bba15001f\backtrace-0.3.74\src\backtrace\dbghelp64.rs (line 91)


0: 7ff9b4a74954
-----------------------------------
            
Relative: Some(1b74954)
Ours absolute: Some(7ffbd0394954)

7ffbd0394931
backtrace::backtrace::trace_unsynchronized
C:\Users\runneradmin\.cargo\registry\src\index.crates.io-6f17d22bba15001f\backtrace-0.3.74\src\backtrace\mod.rs (line 66)


0: 7ff9b4a74954
-----------------------------------
            
Relative: Some(1b74954)
Ours absolute: Some(7ffbd0394954)

7ffbd0394925
backtrace::backtrace::trace
C:\Users\runneradmin\.cargo\registry\src\index.crates.io-6f17d22bba15001f\backtrace-0.3.74\src\backtrace\mod.rs (line 53)


0: 7ff9b4a74954
-----------------------------------
            
Relative: Some(1b74954)
Ours absolute: Some(7ffbd0394954)

7ffbd03948d0
backtrace::capture::Backtrace::create
C:\Users\runneradmin\.cargo\registry\src\index.crates.io-6f17d22bba15001f\backtrace-0.3.74\src\capture.rs (line 292)


1: 7ff9b4a747ec
-----------------------------------
            
Relative: Some(1b747ec)
Ours absolute: Some(7ffbd03947ec)

7ffbd03947c0
backtrace::capture::Backtrace::new
C:\Users\runneradmin\.cargo\registry\src\index.crates.io-6f17d22bba15001f\backtrace-0.3.74\src\capture.rs (line 257)


2: 7ff9b49f19ab
-----------------------------------
            
Relative: Some(1af19ab)
Ours absolute: Some(7ffbd03119ab)

7ffbd0311970
reaper_high::log_util::create_reaper_panic_hook::closure$0<reaper_high::log_util::create_default_console_msg_formatter::closure_env$0>
C:\Users\runneradmin\.cargo\git\checkouts\reaper-rs-d32fed07113e6874\4d3e771\main\high\src\log_util.rs (line 19)


3: 7ff9b4c9107b
-----------------------------------
            
Relative: Some(1d9107b)
Ours absolute: Some(7ffbd05b107b)

7ffbd05b1074
alloc::boxed::impl$50::call
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library\alloc\src\boxed.rs (line 2084)


3: 7ff9b4c9107b
-----------------------------------
            
Relative: Some(1d9107b)
Ours absolute: Some(7ffbd05b107b)

7ffbd05b0f60
std::panicking::rust_panic_with_hook
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library\std\src\panicking.rs (line 808)


4: 7ff9b4c90e86
-----------------------------------
            
Relative: Some(1d90e86)
Ours absolute: Some(7ffbd05b0e86)

7ffbd05b0de0
std::panicking::begin_panic_handler::closure$0
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library\std\src\panicking.rs (line 674)


5: 7ff9b4c8ef7f
-----------------------------------
            
Relative: Some(1d8ef7f)
Ours absolute: Some(7ffbd05aef7f)

7ffbd05aef70
std::sys::backtrace::__rust_end_short_backtrace<std::panicking::begin_panic_handler::closure_env$0,never$>
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library\std\src\sys\backtrace.rs (line 168)


6: 7ff9b4c90a66
-----------------------------------
            
Relative: Some(1d90a66)
Ours absolute: Some(7ffbd05b0a66)

7ffbd05b0a30
std::panicking::begin_panic_handler
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library\std\src\panicking.rs (line 665)


7: 7ff9b4fb27c4
-----------------------------------
            
Relative: Some(20b27c4)
Ours absolute: Some(7ffbd08d27c4)

7ffbd08d2790
core::panicking::panic_fmt
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library\core\src\panicking.rs (line 74)


8: 7ff9b4fb2704
-----------------------------------
            
Relative: Some(20b2704)
Ours absolute: Some(7ffbd08d2704)

7ffbd08d26b0
core::cell::panic_already_mutably_borrowed
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library\core\src\cell.rs (line 793)


9: 7ff9b3a99448
-----------------------------------
            
Relative: Some(b99448)
Ours absolute: Some(7ffbcf3b9448)

7ffbcf3b8c0e
core::cell::RefCell<helgobox::application::unit_model::UnitModel>::borrow
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\core\src\cell.rs (line 980)


9: 7ff9b3a99448
-----------------------------------
            
Relative: Some(b99448)
Ours absolute: Some(7ffbcf3b9448)

7ffbcf3b8bd6
helgobox::infrastructure::ui::mapping_panel::MappingPanel::read
D:\a\helgobox\helgobox\main\src\infrastructure\ui\mapping_panel.rs (line 1728)


9: 7ff9b3a99448
-----------------------------------
            
Relative: Some(b99448)
Ours absolute: Some(7ffbcf3b9448)

7ffbcf3b8bd6
helgobox::infrastructure::ui::mapping_panel::decorate_reaction::closure$0::closure$0
D:\a\helgobox\helgobox\main\src\infrastructure\ui\mapping_panel.rs (line 1893)


9: 7ff9b3a99448
-----------------------------------
            
Relative: Some(b99448)
Ours absolute: Some(7ffbcf3b9448)

7ffbcf3b8b90
helgobox::infrastructure::ui::mapping_panel::MappingPanel::invoke_programmatically<helgobox::infrastructure::ui::mapping_panel::decorate_reaction::closure$0::closure_env$0<tuple$<>,helgobox::infrastructure::ui::mapping_panel::impl$3::register_help_listener
D:\a\helgobox\helgobox\main\src\infrastructure\ui\mapping_panel.rs (line 1691)


10: 7ff9b3c97b13
-----------------------------------
            
Relative: Some(d97b13)
Ours absolute: Some(7ffbcf5b7b13)

7ffbcf5b7ab0
rxrust::observer::impl$1::next<tuple$<>,tuple$<>,rxrust::observable::observable_next::ObserverN<helgobox::base::scheduling::impl$1::do_sync_internal::closure_env$0<tuple$<>,rxrust::ops::take_until::TakeUntilOp<rxrust::ops::map_to::MapToOp<rxrust::subject::
C:\Users\runneradmin\.cargo\git\checkouts\rxrust-cafb4595e4707389\349e50b\src\observer.rs (line 78)


11: 7ff9b39249bd
-----------------------------------
            
Relative: Some(a249bd)
Ours absolute: Some(7ffbcf2449bd)

7ffbcf2449b2
rxrust::observer::impl$2::next
C:\Users\runneradmin\.cargo\git\checkouts\rxrust-cafb4595e4707389\349e50b\src\observer.rs (line 92)


11: 7ff9b39249bd
-----------------------------------
            
Relative: Some(a249bd)
Ours absolute: Some(7ffbcf2449bd)

7ffbcf2449aa
rxrust::subject::impl$5::next::closure$0
C:\Users\runneradmin\.cargo\git\checkouts\rxrust-cafb4595e4707389\349e50b\src\subject.rs (line 144)


11: 7ff9b39249bd
-----------------------------------
            
Relative: Some(a249bd)
Ours absolute: Some(7ffbcf2449bd)

7ffbcf2449aa
core::iter::adapters::map::map_try_fold::closure$0
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\core\src\iter\adapters\map.rs (line 96)


11: 7ff9b39249bd
-----------------------------------
            
Relative: Some(a249bd)
Ours absolute: Some(7ffbcf2449bd)

7ffbcf244964
core::iter::traits::iterator::Iterator::try_fold
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\core\src\iter\traits\iterator.rs (line 2410)


11: 7ff9b39249bd
-----------------------------------
            
Relative: Some(a249bd)
Ours absolute: Some(7ffbcf2449bd)

7ffbcf244940
core::iter::adapters::map::impl$2::try_fold<alloc::boxed::Box<dyn$<rxrust::subscription::Publisher<assoc$<Item,enum2$<core::option::Option<u32> > >,assoc$<Err,tuple$<> > > >,alloc::alloc::Global>,alloc::vec::drain::Drain<alloc::boxed::Box<dyn$<rxrust::subs
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\core\src\iter\adapters\map.rs (line 122)


12: 7ff9b406aa4b
-----------------------------------
            
Relative: Some(116aa4b)
Ours absolute: Some(7ffbcf98aa4b)

7ffbcf98aa3f
core::iter::traits::iterator::Iterator::find
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\core\src\iter\traits\iterator.rs (line 2880)


12: 7ff9b406aa4b
-----------------------------------
            
Relative: Some(116aa4b)
Ours absolute: Some(7ffbcf98aa4b)

7ffbcf98aa37
core::iter::adapters::filter::impl$3::next
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\core\src\iter\adapters\filter.rs (line 96)


12: 7ff9b406aa4b
-----------------------------------
            
Relative: Some(116aa4b)
Ours absolute: Some(7ffbcf98aa4b)

7ffbcf98aa37
alloc::vec::spec_from_iter_nested::impl$0::from_iter
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\alloc\src\vec\spec_from_iter_nested.rs (line 26)


12: 7ff9b406aa4b
-----------------------------------
            
Relative: Some(116aa4b)
Ours absolute: Some(7ffbcf98aa4b)

7ffbcf98aa10
alloc::vec::spec_from_iter::impl$0::from_iter<alloc::boxed::Box<dyn$<rxrust::subscription::Publisher<assoc$<Item,enum2$<core::option::Option<u32> > >,assoc$<Err,tuple$<> > > >,alloc::alloc::Global>,core::iter::adapters::filter::Filter<core::iter::adapters:
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\alloc\src\vec\spec_from_iter.rs (line 33)


13: 7ff9b32ba9e9
-----------------------------------
            
Relative: Some(3ba9e9)
Ours absolute: Some(7ffbcebda9e9)

7ffbcebda960
rxrust::subject::impl$5::next<enum2$<core::option::Option<u32> >,tuple$<>,alloc::boxed::Box<dyn$<rxrust::subscription::Publisher<assoc$<Item,enum2$<core::option::Option<u32> > >,assoc$<Err,tuple$<> > > >,alloc::alloc::Global> >
C:\Users\runneradmin\.cargo\git\checkouts\rxrust-cafb4595e4707389\349e50b\src\subject.rs (line 148)


14: 7ff9b3a1d670
-----------------------------------
            
Relative: Some(b1d670)
Ours absolute: Some(7ffbcf33d670)

7ffbcf33d65c
rxrust::subject::impl$2::next
C:\Users\runneradmin\.cargo\git\checkouts\rxrust-cafb4595e4707389\349e50b\src\subject.rs (line 29)


14: 7ff9b3a1d670
-----------------------------------
            
Relative: Some(b1d670)
Ours absolute: Some(7ffbcf33d670)

7ffbcf33d656
helgobox::base::property::impl$0::notify::closure$0
D:\a\helgobox\helgobox\main\src\base\property.rs (line 39)


14: 7ff9b3a1d670
-----------------------------------
            
Relative: Some(b1d670)
Ours absolute: Some(7ffbcf33d670)

7ffbcf33d640
core::ops::function::FnOnce::call_once<helgobox::base::property::impl$0::notify::closure_env$0<enum2$<core::option::Option<u32> > >,tuple$<> >
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\core\src\ops\function.rs (line 250)


15: 7ff9b4a11583
-----------------------------------
            
Relative: Some(1b11583)
Ours absolute: Some(7ffbd0331583)

7ffbd0331580
alloc::boxed::impl$48::call_once
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\alloc\src\boxed.rs (line 2070)


15: 7ff9b4a11583
-----------------------------------
            
Relative: Some(1b11583)
Ours absolute: Some(7ffbd0331583)

7ffbd0331480
reaper_high::main_task_middleware::MainTaskMiddleware::run
C:\Users\runneradmin\.cargo\git\checkouts\reaper-rs-d32fed07113e6874\4d3e771\main\high\src\main_task_middleware.rs (line 174)


16: 7ff9b3bce245
-----------------------------------
            
Relative: Some(cce245)
Ours absolute: Some(7ffbcf4ee245)

7ffbcf4ee0d0
helgobox::domain::control_surface::RealearnControlSurfaceMiddleware<alloc::rc::Weak<core::cell::RefCell<helgobox::application::unit_model::UnitModel>,alloc::alloc::Global> >::run_internal<alloc::rc::Weak<core::cell::RefCell<helgobox::application::unit_mode
D:\a\helgobox\helgobox\main\src\domain\control_surface.rs (line 289)


17: 7ff9b4b4c4ef
-----------------------------------
            
Relative: Some(1c4c4ef)
Ours absolute: Some(7ffbd046c4ef)

7ffbd046c4d0
reaper_low::util::firewall<reaper_low::control_surface::cpp_to_rust_IReaperControlSurface_Run::closure_env$0,tuple$<> >
C:\Users\runneradmin\.cargo\git\checkouts\reaper-rs-d32fed07113e6874\4d3e771\main\low\src\util.rs (line 18)


18: 7ff9b4b2d86f
-----------------------------------
            
Relative: Some(1c2d86f)
Ours absolute: Some(7ffbd044d86f)

7ffbd044d850
reaper_low::control_surface::cpp_to_rust_IReaperControlSurface_Run
C:\Users\runneradmin\.cargo\git\checkouts\reaper-rs-d32fed07113e6874\4d3e771\main\low\src\control_surface.rs (line 224)


41: 7ff9b4b4850c
-----------------------------------
            
Relative: Some(1c4850c)
Ours absolute: Some(7ffbd046850c)

7ffbd04684e0
reaper_low::swell::Swell::TrackPopupMenu
C:\Users\runneradmin\.cargo\git\checkouts\reaper-rs-d32fed07113e6874\4d3e771\main\low\src\swell.rs (line 7676)


42: 7ff9b460ca48
-----------------------------------
            
Relative: Some(170ca48)
Ours absolute: Some(7ffbcff2ca48)

7ffbcff2ca00
swell_ui::window::Window::open_popup_menu_internal
D:\a\helgobox\helgobox\swell-ui\src\window.rs (line 747)


43: 7ff9b331918f
-----------------------------------
            
Relative: Some(41918f)
Ours absolute: Some(7ffbcec3918f)

7ffbcec39070
swell_ui::window::Window::open_popup_menu<enum2$<helgobox::infrastructure::ui::mapping_panel::impl$2::open_target_menu::MenuAction> >
D:\a\helgobox\helgobox\swell-ui\src\window.rs (line 771)


44: 7ff9b3aac4ca
-----------------------------------
            
Relative: Some(bac4ca)
Ours absolute: Some(7ffbcf3cc4ca)

7ffbcf3cc102
helgobox::infrastructure::ui::mapping_panel::impl$4::button_clicked::closure$16
D:\a\helgobox\helgobox\main\src\infrastructure\ui\mapping_panel.rs (line 7262)


44: 7ff9b3aac4ca
-----------------------------------
            
Relative: Some(bac4ca)
Ours absolute: Some(7ffbcf3cc4ca)

7ffbcf3cc071
helgobox::infrastructure::ui::mapping_panel::MappingPanel::write
D:\a\helgobox\helgobox\main\src\infrastructure\ui\mapping_panel.rs (line 1787)


44: 7ff9b3aac4ca
-----------------------------------
            
Relative: Some(bac4ca)
Ours absolute: Some(7ffbcf3cc4ca)

7ffbcf3cb850
helgobox::infrastructure::ui::mapping_panel::impl$4::button_clicked
D:\a\helgobox\helgobox\main\src\infrastructure\ui\mapping_panel.rs (line 7262)


45: 7ff9b460e079
-----------------------------------
            
Relative: Some(170e079)
Ours absolute: Some(7ffbcff2e079)

7ffbcff2d301
swell_ui::view_manager::view_dialog_proc::closure$0::closure$0
D:\a\helgobox\helgobox\swell-ui\src\view_manager.rs (line 231)


45: 7ff9b460e079
-----------------------------------
            
Relative: Some(170e079)
Ours absolute: Some(7ffbcff2e079)

7ffbcff2d301
std::thread::local::LocalKey<core::cell::Cell<bool> >::try_with
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\std\src\thread\local.rs (line 283)


45: 7ff9b460e079
-----------------------------------
            
Relative: Some(170e079)
Ours absolute: Some(7ffbcff2e079)

7ffbcff2d301
std::thread::local::LocalKey<core::cell::Cell<bool> >::with
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\std\src\thread\local.rs (line 260)


45: 7ff9b460e079
-----------------------------------
            
Relative: Some(170e079)
Ours absolute: Some(7ffbcff2e079)

7ffbcff2d301
swell_ui::view_manager::view_dialog_proc::closure$0
D:\a\helgobox\helgobox\swell-ui\src\view_manager.rs (line 149)


45: 7ff9b460e079
-----------------------------------
            
Relative: Some(170e079)
Ours absolute: Some(7ffbcff2e079)

7ffbcff2d301
std::panicking::try::do_call
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\std\src\panicking.rs (line 557)


45: 7ff9b460e079
-----------------------------------
            
Relative: Some(170e079)
Ours absolute: Some(7ffbcff2e079)

7ffbcff2d301
std::panicking::try
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\std\src\panicking.rs (line 521)


45: 7ff9b460e079
-----------------------------------
            
Relative: Some(170e079)
Ours absolute: Some(7ffbcff2e079)

7ffbcff2d301
std::panic::catch_unwind
/rustc/eeb90cda1969383f56a2637cbd3037bdf598841c\library\std\src\panic.rs (line 350)


45: 7ff9b460e079
-----------------------------------
            
Relative: Some(170e079)
Ours absolute: Some(7ffbcff2e079)

7ffbcff2d2c0
swell_ui::view_manager::view_dialog_proc
D:\a\helgobox\helgobox\swell-ui\src\view_manager.rs (line 148)

[helgoboss]

This happens when having the target menu open and learning something.