Running tests\c_str_alloc_error.rs (build\x86_64-pc-windows-msvc\stage2-std\x86_64-pc-windows-msvc\debug\build\alloctests/f351f1e9a7e114c5\out\c_str_alloc_error-f351f1e9a7e114c5.exe)

running 0 tests
error: Undefined Behavior: attempting a read access using <171667> at alloc58192[0x68], but that tag does not exist in the borrow stack for this location
##[error]    --> D:\a\rust\rust\library\std\src\sys\alloc\windows.rs:189:26
     |
 189 |                 unsafe { ptr::read((ptr as *mut Header).sub(1)).0 }
     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this error occurs as part of an access at alloc58192[0x68..0x70]
     |
     = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental
     = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information
help: <171667> was created by a Unique retag at offsets [0x70..0x270]
    --> D:\a\rust\rust\library\core\src\mem\mod.rs:1038:22
     |
1038 | pub const fn drop<T>(_x: T)
     |                      ^^
     = note: stack backtrace:
             0: std::sys::alloc::windows::<impl std::alloc::GlobalAlloc for std::alloc::System>::dealloc
                 at D:\a\rust\rust\library\std\src\sys\alloc\windows.rs:189:26: 189:64
             1: <OneShotFailingAlloc as std::alloc::GlobalAlloc>::dealloc
                 at library\alloctests\tests\c_str_alloc_error.rs:33:18: 33:45
             2: _::__rust_dealloc
                 at library\alloctests\tests\c_str_alloc_error.rs:45:15: 45:34
             3: <std::boxed::Box<std::sync::mpmc::counter::Counter<std::sync::mpmc::list::Channel<test::event::CompletedTest>>> as std::ops::Drop>::drop
                 at D:\a\rust\rust\library\alloc\src\boxed.rs:2002:17: 2002:66
             4: std::ptr::drop_glue::<std::boxed::Box<std::sync::mpmc::counter::Counter<std::sync::mpmc::list::Channel<test::event::CompletedTest>>>> - shim(Some(std::boxed::Box<std::sync::mpmc::counter::Counter<std::sync::mpmc::list::Channel<test::event::CompletedTest>>>))
                 at D:\a\rust\rust\library\core\src\ptr\mod.rs:823:1: 825:25
             5: std::mem::drop::<std::boxed::Box<std::sync::mpmc::counter::Counter<std::sync::mpmc::list::Channel<test::event::CompletedTest>>>>
                 at D:\a\rust\rust\library\core\src\mem\mod.rs:1042:1: 1042:2
             6: std::sync::mpmc::counter::Sender::<std::sync::mpmc::list::Channel<test::event::CompletedTest>>::release::<{closure@<std::sync::mpmc::Sender<test::event::CompletedTest> as std::ops::Drop>::drop::{closure#1}}>
                 at D:\a\rust\rust\library\std\src\sync\mpmc\counter.rs:65:17: 65:61
             7: <std::sync::mpmc::Sender<test::event::CompletedTest> as std::ops::Drop>::drop
                 at D:\a\rust\rust\library\std\src\sync\mpmc\mod.rs:662:45: 662:85
             8: std::ptr::drop_glue::<std::sync::mpmc::Sender<test::event::CompletedTest>> - shim(Some(std::sync::mpmc::Sender<test::event::CompletedTest>))
                 at D:\a\rust\rust\library\core\src\ptr\mod.rs:823:1: 825:25
             9: std::ptr::drop_glue::<std::sync::mpsc::Sender<test::event::CompletedTest>> - shim(Some(std::sync::mpsc::Sender<test::event::CompletedTest>))
                 at D:\a\rust\rust\library\core\src\ptr\mod.rs:823:1: 825:25
             10: test::run_tests::<{closure@test::run_tests_console::{closure#2}}>
                 at D:\a\rust\rust\library\test\src\lib.rs:536:1: 536:2
             11: test::run_tests_console
                 at D:\a\rust\rust\library\test\src\console.rs:328:5: 328:70
             12: test::test_main_inner::<{closure@test::test_main_static::{closure#0}}>
                 at D:\a\rust\rust\library\test\src\lib.rs:170:19: 170:59
             13: test::test_main_static
                 at D:\a\rust\rust\library\test\src\lib.rs:195:5: 195:47
             14: main
                 at no-location
---

error: test failed, to rerun pass `-p alloctests --test c_str_alloc_error`

Caused by:
  process didn't exit successfully: `D:\a\rust\rust\build\x86_64-pc-windows-msvc\stage2\bin\cargo-miri.exe runner 'D:\a\rust\rust\build\x86_64-pc-windows-msvc\stage2-std\x86_64-pc-windows-msvc\debug\build\alloctests/f351f1e9a7e114c5\out\c_str_alloc_error-f351f1e9a7e114c5.exe' notest -Z unstable-options --format json` (exit code: 1)
note: test exited abnormally; to see the full output pass --no-capture to the harness.
Bootstrap failed while executing `miri --stage 2 library/alloc --test-args notest`
Build completed unsuccessfully in 0:00:48
  local time: Mon Jul  6 08:29:01 CUT 2026
  network time: Mon, 06 Jul 2026 08:29:01 GMT
##[error]Process completed with exit code 1.
##[group]Run echo "disk usage:"