embassy/embassy-sync/tests/ui/sync_impl/lazy_lock_function.stderr

error[E0277]: `*const u8` cannot be shared between threads safely
  --> tests/ui/sync_impl/lazy_lock_function.rs:8:16
   |
 6 |     let closure_capturing_non_sync_variable = || unsafe { core::ptr::read(x_ptr) };
   |                                               -- within this `{closure@$DIR/tests/ui/sync_impl/lazy_lock_function.rs:6:47: 6:49}`
 7 |
 8 |     check_sync(LazyLock::new(closure_capturing_non_sync_variable));
   |     ---------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `*const u8` cannot be shared between threads safely
   |     |
   |     required by a bound introduced by this call
   |
   = help: within `{closure@$DIR/tests/ui/sync_impl/lazy_lock_function.rs:6:47: 6:49}`, the trait `Sync` is not implemented for `*const u8`
   = note: required because it appears within the type `&*const u8`
note: required because it's used within this closure
  --> tests/ui/sync_impl/lazy_lock_function.rs:6:47
   |
 6 |     let closure_capturing_non_sync_variable = || unsafe { core::ptr::read(x_ptr) };
   |                                               ^^
   = note: required for `embassy_sync::lazy_lock::LazyLock<u8, {closure@$DIR/tests/ui/sync_impl/lazy_lock_function.rs:6:47: 6:49}>` to implement `Sync`
note: required by a bound in `check_sync`
  --> tests/ui/sync_impl/lazy_lock_function.rs:11:18
   |
11 | fn check_sync<T: Sync>(_lazy_lock: T) {}
   |                  ^^^^ required by this bound in `check_sync`