error: Undefined Behavior: not granting access to tag <715> because that would remove [Unique for <729>] which is strongly protected because it is an argument of call 293 --> /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/unix/thread_local_dtor.rs:72:16 | 72 | let list = &mut DTORS; | ^^^^^^^^^^ not granting access to tag <715> because that would remove [Unique for <729>] which is strongly protected because it is an argument of call 293 | = 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: <715> was created here, as the base tag for alloc381 --> src/main.rs:14:1 | 14 | / thread_local! { 15 | | static LOCAL: Local = Local; 16 | | } | |_^ help: <729> is this argument --> src/main.rs:14:1 | 14 | / thread_local! { 15 | | static LOCAL: Local = Local; 16 | | } | |_^ = note: BACKTRACE (of the first span): = note: inside `std::sys::unix::thread_local_dtor::register_dtor` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/unix/thread_local_dtor.rs:72:16: 72:26 = note: inside `std::thread::local_impl::Key::<Local>::try_register_dtor` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/common/thread_local/fast_local.rs:207:26: 207:88 = note: inside `std::thread::local_impl::Key::<Local>::try_initialize::<[closure@/Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/common/thread_local/fast_local.rs:91:31: 91:38]>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/common/thread_local/fast_local.rs:188:48: 188:72 = note: inside `std::thread::local_impl::Key::<Local>::get::<[closure@/Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/common/thread_local/fast_local.rs:91:31: 91:38]>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/common/thread_local/fast_local.rs:173:25: 173:50 note: inside `LOCAL::__getit` --> src/main.rs:14:1 | 14 | / thread_local! { 15 | | static LOCAL: Local = Local; 16 | | } | |_^ = note: inside `std::thread::LocalKey::<Local>::try_with::<[closure@src/main.rs:20:20: 20:28], ()>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:269:32: 269:50 = note: inside `std::thread::LocalKey::<Local>::with::<[closure@src/main.rs:20:20: 20:28], ()>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:246:9: 246:25 note: inside `<Alloc as std::alloc::GlobalAlloc>::alloc` --> src/main.rs:20:9 | 20 | LOCAL.with(|_local| {}); | ^^^^^^^^^^^^^^^^^^^^^^^ note: inside `_::__rust_alloc` --> src/main.rs:4:15 | 3 | #[global_allocator] | ------------------- in this procedural macro expansion 4 | static ALLOC: Alloc = Alloc; | ^^^^^ = note: inside `std::alloc::alloc` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/alloc.rs:98:9: 98:52 = note: inside `std::alloc::Global::alloc_impl` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/alloc.rs:181:73: 181:86 = note: inside `<std::alloc::Global as std::alloc::Allocator>::allocate` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/alloc.rs:241:9: 241:39 = note: inside `alloc::raw_vec::finish_grow::<std::alloc::Global>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/raw_vec.rs:485:9: 485:35 = note: inside `alloc::raw_vec::RawVec::<(*mut u8, unsafe extern "C" fn(*mut u8))>::grow_amortized` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/raw_vec.rs:404:19: 404:82 = note: inside `alloc::raw_vec::RawVec::<(*mut u8, unsafe extern "C" fn(*mut u8))>::reserve_for_push` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/raw_vec.rs:302:24: 302:51 = note: inside `std::vec::Vec::<(*mut u8, unsafe extern "C" fn(*mut u8))>::push` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/vec/mod.rs:1829:13: 1829:48 = note: inside `std::sys::unix::thread_local_dtor::register_dtor` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/unix/thread_local_dtor.rs:73:5: 73:25 = note: inside `std::thread::local_impl::Key::<Local>::try_register_dtor` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/common/thread_local/fast_local.rs:207:26: 207:88 = note: inside `std::thread::local_impl::Key::<Local>::try_initialize::<[closure@/Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/common/thread_local/fast_local.rs:91:31: 91:38]>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/common/thread_local/fast_local.rs:188:48: 188:72 = note: inside `std::thread::local_impl::Key::<Local>::get::<[closure@/Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/common/thread_local/fast_local.rs:91:31: 91:38]>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/common/thread_local/fast_local.rs:173:25: 173:50 note: inside `LOCAL::__getit` --> src/main.rs:14:1 | 14 | / thread_local! { 15 | | static LOCAL: Local = Local; 16 | | } | |_^ = note: inside `std::thread::LocalKey::<Local>::try_with::<[closure@src/main.rs:20:20: 20:28], ()>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:269:32: 269:50 = note: inside `std::thread::LocalKey::<Local>::with::<[closure@src/main.rs:20:20: 20:28], ()>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:246:9: 246:25 note: inside `<Alloc as std::alloc::GlobalAlloc>::alloc` --> src/main.rs:20:9 | 20 | LOCAL.with(|_local| {}); | ^^^^^^^^^^^^^^^^^^^^^^^ note: inside `_::__rust_alloc` --> src/main.rs:4:15 | 3 | #[global_allocator] | ------------------- in this procedural macro expansion 4 | static ALLOC: Alloc = Alloc; | ^^^^^ = note: inside `std::alloc::alloc` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/alloc.rs:98:9: 98:52 = note: inside `std::alloc::Global::alloc_impl` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/alloc.rs:181:73: 181:86 = note: inside `<std::alloc::Global as std::alloc::Allocator>::allocate` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/alloc.rs:241:9: 241:39 = note: inside `alloc::raw_vec::RawVec::<u8>::allocate_in` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/raw_vec.rs:184:45: 184:67 = note: inside `alloc::raw_vec::RawVec::<u8>::with_capacity_in` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/raw_vec.rs:130:9: 130:69 = note: inside `std::vec::Vec::<u8>::with_capacity_in` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/vec/mod.rs:670:20: 670:61 = note: inside `std::vec::Vec::<u8>::with_capacity` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/vec/mod.rs:479:9: 479:49 = note: inside `std::ffi::CString::new::spec_new_impl_bytes` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/ffi/c_str.rs:287:30: 287:58 = note: inside `<&str as std::ffi::CString::new::SpecNewImpl>::spec_new_impl` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/ffi/c_str.rs:306:17: 306:53 = note: inside `std::ffi::CString::new::<&str>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/ffi/c_str.rs:316:9: 316:26 = note: inside `std::rt::init` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs:104:53: 104:73 = note: inside closure at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs:147:42: 147:67 = note: inside `std::panicking::r#try::do_call::<[closure@std::rt::lang_start_internal::{closure#1}], ()>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:524:40: 524:43 = note: inside `std::panicking::r#try::<(), [closure@std::rt::lang_start_internal::{closure#1}]>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:488:19: 488:81 = note: inside `std::panic::catch_unwind::<[closure@std::rt::lang_start_internal::{closure#1}], ()>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/panic.rs:142:14: 142:33 = note: inside `std::rt::lang_start_internal` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs:147:5: 147:70 = note: inside `std::rt::lang_start::<()>` at /Users/nv/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs:165:17: 170:6 = note: this error originates in the macro `$crate::thread::local_impl::thread_local_inner` which comes from the expansion of the attribute macro `global_allocator` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to previous error