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Double panic on MSVC no longer prints abort message #123470

Open CAD97 opened 4 months ago

CAD97 commented 4 months ago

I tried this code:

struct DropPanic;
impl Drop for DropPanic {
    fn drop(&mut self) {
        panic!("panic in drop");
    }
}

fn main() {
    let _bomb = DropPanic;
    panic!("panic in main");
}

I expected to see this happen: I would see a "panic in a destructor during cleanup" message and the program would abort.

Instead, this happened: The second panic prints a full backtrace and then the program exits with STATUS_STACK_BUFFER_OVERRUN (that's a __fastfail; before, it was STATUS_ILLEGAL_INSTRUCTION: intrinsics::abort instead of process::abort.)

Meta

I didn't bisect to the specific release that changed this, but it's due to the change to allow well-nested unwinds with catch_unwind in destructors during cleanup. I also didn't test whether windows-gnu also behaves like this (if it still uses SEH unwinding, it does).

rustc 1.56.1 (59eed8a2a 2021-11-01) output (abort message)

```text thread 'main' panicked at 'panic in main', src\main.rs:10:5 stack backtrace: 0: std::panicking::begin_panic_handler at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:517 1: core::panicking::panic_fmt at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\core\src\panicking.rs:101 2: cad97_playground::main at .\src\main.rs:10 3: core::ops::function::FnOnce::call_once > at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\library\core\src\ops\function.rs:227 note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. thread 'main' panicked at 'panic in drop', src\main.rs:4:9 stack backtrace: 0: 0x7ff60b526cfe - std::backtrace_rs::backtrace::dbghelp::trace at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\..\..\backtrace\src\backtrace\dbghelp.rs:98 1: 0x7ff60b526cfe - std::backtrace_rs::backtrace::trace_unsynchronized at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\..\..\backtrace\src\backtrace\mod.rs:66 2: 0x7ff60b526cfe - std::sys_common::backtrace::_print_fmt at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\sys_common\backtrace.rs:67 3: 0x7ff60b526cfe - std::sys_common::backtrace::_print::impl$0::fmt at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\sys_common\backtrace.rs:46 4: 0x7ff60b53527a - core::fmt::write at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\core\src\fmt\mod.rs:1150 5: 0x7ff60b524fa8 - std::io::Write::write_fmt at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\io\mod.rs:1667 6: 0x7ff60b528f16 - std::sys_common::backtrace::_print at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\sys_common\backtrace.rs:49 7: 0x7ff60b528f16 - std::sys_common::backtrace::print at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\sys_common\backtrace.rs:36 8: 0x7ff60b528f16 - std::panicking::default_hook::closure$1 at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:210 9: 0x7ff60b528a04 - std::panicking::default_hook at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:227 10: 0x7ff60b529575 - std::panicking::rust_panic_with_hook at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:624 11: 0x7ff60b52912f - std::panicking::begin_panic_handler::closure$0 at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:519 12: 0x7ff60b527647 - std::sys_common::backtrace::__rust_end_short_backtrace at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\sys_common\backtrace.rs:141 13: 0x7ff60b5290b9 - std::panicking::begin_panic_handler at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:517 14: 0x7ff60b539ac0 - core::panicking::panic_fmt at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\core\src\panicking.rs:101 15: 0x7ff60b52139f - cad97_playground::impl$0::drop at D:\git\cad97\playground\src\main.rs:4 16: 0x7ff60b52132e - core::ptr::drop_in_place at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\library\core\src\ptr\mod.rs:188 17: 0x7ff60b5210c7 - cad97_playground::main at D:\git\cad97\playground\src\main.rs:11 18: 0x7ffb62171060 - 19: 0x7ffb621753ea - is_exception_typeof 20: 0x7ffb6217fb80 - _C_specific_handler 21: 0x7ffb621745f0 - is_exception_typeof 22: 0x7ffb621804b1 - _CxxFrameHandler3 23: 0x7ffb74ed448f - _chkstk 24: 0x7ffb74e4fd54 - RtlUnwindEx 25: 0x7ffb62180046 - _C_specific_handler 26: 0x7ffb62173245 - is_exception_typeof 27: 0x7ffb62173666 - is_exception_typeof 28: 0x7ffb621746ec - is_exception_typeof 29: 0x7ffb621804b1 - _CxxFrameHandler3 30: 0x7ffb74ed440f - _chkstk 31: 0x7ffb74e4e466 - RtlFindCharInUnicodeString 32: 0x7ffb74e84465 - RtlRaiseException 33: 0x7ffb727053ac - RaiseException 34: 0x7ffb62176ba7 - CxxThrowException 35: 0x7ff60b52c911 - panic_unwind::real_imp::panic at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\panic_unwind\src\seh.rs:313 36: 0x7ff60b52c899 - panic_unwind::__rust_start_panic at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\panic_unwind\src\lib.rs:105 37: 0x7ff60b52982b - std::panicking::rust_panic at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:672 38: 0x7ff60b52972b - std::panicking::rust_panic_with_hook at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:642 39: 0x7ff60b52912f - std::panicking::begin_panic_handler::closure$0 at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:519 40: 0x7ff60b527647 - std::sys_common::backtrace::__rust_end_short_backtrace at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\sys_common\backtrace.rs:141 41: 0x7ff60b5290b9 - std::panicking::begin_panic_handler at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:517 42: 0x7ff60b539ac0 - core::panicking::panic_fmt at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\core\src\panicking.rs:101 43: 0x7ff60b5210a0 - cad97_playground::main at D:\git\cad97\playground\src\main.rs:10 44: 0x7ff60b5212bb - core::ops::function::FnOnce::call_once > at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\library\core\src\ops\function.rs:227 45: 0x7ff60b52101b - std::sys_common::backtrace::__rust_begin_short_backtrace > at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\library\std\src\sys_common\backtrace.rs:125 46: 0x7ff60b521151 - std::rt::lang_start::closure$0 > at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\library\std\src\rt.rs:63 47: 0x7ff60b5299c6 - core::ops::function::impls::impl$2::call_once at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\library\core\src\ops\function.rs:259 48: 0x7ff60b5299c6 - std::panicking::try::do_call at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:403 49: 0x7ff60b5299c6 - std::panicking::try at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:367 50: 0x7ff60b5299c6 - std::panic::catch_unwind at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panic.rs:129 51: 0x7ff60b5299c6 - std::rt::lang_start_internal::closure$2 at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\rt.rs:45 52: 0x7ff60b5299c6 - std::panicking::try::do_call at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:403 53: 0x7ff60b5299c6 - std::panicking::try at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panicking.rs:367 54: 0x7ff60b5299c6 - std::panic::catch_unwind at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\panic.rs:129 55: 0x7ff60b5299c6 - std::rt::lang_start_internal at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\/library\std\src\rt.rs:45 56: 0x7ff60b52111f - std::rt::lang_start > at /rustc/59eed8a2aac0230a8b53e89d4e99d55912ba6b35\library\std\src\rt.rs:62 57: 0x7ff60b5210e6 - main 58: 0x7ff60b538874 - invoke_main at D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:78 59: 0x7ff60b538874 - __scrt_common_main_seh at D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288 60: 0x7ffb746e257d - BaseThreadInitThunk 61: 0x7ffb74e8aa48 - RtlUserThreadStart thread panicked while panicking. aborting. ```

rustc 1.79.0-nightly (8df7e723e 2024-03-30) output (no abort message)

```text thread 'main' panicked at src\main.rs:10:5: panic in main stack backtrace: 0: std::panicking::begin_panic_handler at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\panicking.rs:646 1: core::panicking::panic_fmt at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\core\src\panicking.rs:72 2: cad97_playground::main at .\src\main.rs:10 3: core::ops::function::FnOnce::call_once > at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373\library\core\src\ops\function.rs:250 4: core::hint::black_box at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373\library\core\src\hint.rs:338 note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. thread 'main' panicked at src\main.rs:4:9: panic in drop stack backtrace: 0: 0x7ff79eca63ea - std::backtrace_rs::backtrace::dbghelp64::trace at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\..\..\backtrace\src\backtrace\dbghelp64.rs:99 1: 0x7ff79eca63ea - std::backtrace_rs::backtrace::trace_unsynchronized at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\..\..\backtrace\src\backtrace\mod.rs:66 2: 0x7ff79eca63ea - std::sys_common::backtrace::_print_fmt at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\sys_common\backtrace.rs:68 3: 0x7ff79eca63ea - std::sys_common::backtrace::_print::impl$0::fmt at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\sys_common\backtrace.rs:44 4: 0x7ff79ecb36d9 - core::fmt::rt::Argument::fmt at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\core\src\fmt\rt.rs:142 5: 0x7ff79ecb36d9 - core::fmt::write at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\core\src\fmt\mod.rs:1153 6: 0x7ff79eca4a01 - std::io::Write::write_fmt at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\io\mod.rs:1843 7: 0x7ff79eca61d6 - std::sys_common::backtrace::print at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\sys_common\backtrace.rs:34 8: 0x7ff79eca7cb8 - std::panicking::default_hook::closure$1 at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\panicking.rs:272 9: 0x7ff79eca7957 - std::panicking::default_hook at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\panicking.rs:292 10: 0x7ff79eca81fd - std::panicking::rust_panic_with_hook at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\panicking.rs:789 11: 0x7ff79eca807b - std::panicking::begin_panic_handler::closure$0 at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\panicking.rs:650 12: 0x7ff79eca6a7f - std::sys_common::backtrace::__rust_end_short_backtrace at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\sys_common\backtrace.rs:171 13: 0x7ff79eca7d68 - std::panicking::begin_panic_handler at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\panicking.rs:646 14: 0x7ff79ecb86a7 - core::panicking::panic_fmt at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\core\src\panicking.rs:72 15: 0x7ff79eca1246 - cad97_playground::impl$0::drop at D:\git\cad97\playground\src\main.rs:4 16: 0x7ff79eca11ee - core::ptr::drop_in_place at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373\library\core\src\ptr\mod.rs:514 17: 0x7ff79eca1107 - cad97_playground::main at D:\git\cad97\playground\src\main.rs:11 18: 0x7ffb62171060 - 19: 0x7ffb621753ea - is_exception_typeof 20: 0x7ffb6217fb80 - _C_specific_handler 21: 0x7ffb621745f0 - is_exception_typeof 22: 0x7ffb621804b1 - _CxxFrameHandler3 23: 0x7ffb74ed448f - _chkstk 24: 0x7ffb74e4fd54 - RtlUnwindEx 25: 0x7ffb62180046 - _C_specific_handler 26: 0x7ffb62173245 - is_exception_typeof 27: 0x7ffb62173666 - is_exception_typeof 28: 0x7ffb621746ec - is_exception_typeof 29: 0x7ffb621804b1 - _CxxFrameHandler3 30: 0x7ffb74ed440f - _chkstk 31: 0x7ffb74e4e466 - RtlFindCharInUnicodeString 32: 0x7ffb74e84465 - RtlRaiseException 33: 0x7ffb727053ac - RaiseException 34: 0x7ffb62176ba7 - CxxThrowException 35: 0x7ff79ecab650 - panic_unwind::real_imp::panic at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\panic_unwind\src\seh.rs:323 36: 0x7ff79ecab650 - panic_unwind::__rust_start_panic at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\panic_unwind\src\lib.rs:106 37: 0x7ff79eca8585 - std::panicking::rust_panic at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\panicking.rs:841 38: 0x7ff79eca8286 - std::panicking::rust_panic_with_hook at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\panicking.rs:811 39: 0x7ff79eca807b - std::panicking::begin_panic_handler::closure$0 at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\panicking.rs:650 40: 0x7ff79eca6a7f - std::sys_common::backtrace::__rust_end_short_backtrace at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\sys_common\backtrace.rs:171 41: 0x7ff79eca7d68 - std::panicking::begin_panic_handler at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\panicking.rs:646 42: 0x7ff79ecb86a7 - core::panicking::panic_fmt at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\core\src\panicking.rs:72 43: 0x7ff79eca10ea - cad97_playground::main at D:\git\cad97\playground\src\main.rs:10 44: 0x7ff79eca117b - core::ops::function::FnOnce::call_once > at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373\library\core\src\ops\function.rs:250 45: 0x7ff79eca113e - core::hint::black_box at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373\library\core\src\hint.rs:338 46: 0x7ff79eca113e - std::sys_common::backtrace::__rust_begin_short_backtrace > at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373\library\std\src\sys_common\backtrace.rs:155 47: 0x7ff79eca12c1 - std::rt::lang_start::closure$0 > at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373\library\std\src\rt.rs:166 48: 0x7ff79eca31d2 - std::rt::lang_start_internal at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373/library\std\src\rt.rs:148 49: 0x7ff79eca129a - std::rt::lang_start > at /rustc/8df7e723ea729a7f917501cc2d91d640b7021373\library\std\src\rt.rs:165 50: 0x7ff79eca1129 - main 51: 0x7ff79ecb6e10 - invoke_main at D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:78 52: 0x7ff79ecb6e10 - __scrt_common_main_seh at D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288 53: 0x7ffb746e257d - BaseThreadInitThunk 54: 0x7ffb74e8aa48 - RtlUserThreadStart ```

full call stack when abort is called, as reported by vscode debugger

```text abort (@abort:21) terminate (@terminate:12) __FrameUnwindFilter (@__FrameUnwindFilter:20) memset (@memset:346) __C_specific_handler (@__C_specific_handler:46) __chkstk (@__chkstk:121) RtlFindCharInUnicodeString (@RtlFindCharInUnicodeString:714) KiUserExceptionDispatcher (@KiUserExceptionDispatcher:15) RaiseException (@RaiseException:26) _CxxThrowException (@_CxxThrowException:42) void panic_unwind::__rust_start_panic() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\panic_unwind\src\lib.rs:106) void std::panicking::rust_panic() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\panicking.rs:841) void std::panicking::rust_panic_with_hook() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\panicking.rs:811) static void std::panicking::begin_panic_handler::closure$0() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\panicking.rs:650) static void std::sys_common::backtrace::__rust_end_short_backtrace() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\sys_common\backtrace.rs:171) void std::panicking::begin_panic_handler() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\panicking.rs:646) void core::panicking::panic_fmt() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\panicking.rs:72) 140001246 (d:\git\cad97\playground\src\main.rs:4) core::ptr::drop_in_place (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\ptr\mod.rs:514) static void cad97_playground::main() (d:\git\cad97\playground\src\main.rs:11) 180001060 (@7ffb62171060..7ffb621710d1:3) _is_exception_typeof (@_is_exception_typeof:2790) __C_specific_handler (@__C_specific_handler:377) _is_exception_typeof (@_is_exception_typeof:1837) __CxxFrameHandler3 (@__CxxFrameHandler3:33) __chkstk (@__chkstk:163) RtlUnwindEx (@RtlUnwindEx:152) __C_specific_handler (@__C_specific_handler:724) _is_exception_typeof (@_is_exception_typeof:517) _is_exception_typeof (@_is_exception_typeof:791) _is_exception_typeof (@_is_exception_typeof:1899) __CxxFrameHandler3 (@__CxxFrameHandler3:33) __chkstk (@__chkstk:121) RtlFindCharInUnicodeString (@RtlFindCharInUnicodeString:714) KiUserExceptionDispatcher (@KiUserExceptionDispatcher:15) RaiseException (@RaiseException:26) _CxxThrowException (@_CxxThrowException:42) void panic_unwind::__rust_start_panic() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\panic_unwind\src\lib.rs:106) void std::panicking::rust_panic() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\panicking.rs:841) void std::panicking::rust_panic_with_hook() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\panicking.rs:811) static void std::panicking::begin_panic_handler::closure$0() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\panicking.rs:650) static void std::sys_common::backtrace::__rust_end_short_backtrace() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\sys_common\backtrace.rs:171) void std::panicking::begin_panic_handler() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\panicking.rs:646) void core::panicking::panic_fmt() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\panicking.rs:72) static void cad97_playground::main() (d:\git\cad97\playground\src\main.rs:10) void core::ops::function::FnOnce::call_once >( *) (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\ops\function.rs:250) void std::sys_common::backtrace::__rust_begin_short_backtrace >( *) (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\sys_common\backtrace.rs:155) int std::rt::lang_start::closure$0 >(struct std::rt::lang_start::closure_env$0 > *) (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\rt.rs:166) void std::rt::lang_start_internal() (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\rt.rs:148) __int64 std::rt::lang_start >( *, __int64, unsigned char * *, unsigned char) (d:\.rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\rt.rs:165) main (@main:9) static int __scrt_common_main_seh() (@7ff79ecb6e10..7ff79ecb6e77:3) BaseThreadInitThunk (@BaseThreadInitThunk:12) RtlUserThreadStart (@RtlUserThreadStart:12) ```

@rustbot modify labels: +regression-from-stable-to-stable +O-windows

apiraino commented 4 months ago

WG-prioritization assigning priority (Zulip discussion).

@rustbot label -I-prioritize +P-medium