diff options
Diffstat (limited to 'src/libstd/sync')
| -rw-r--r-- | src/libstd/sync/mutex.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libstd/sync/mutex.rs b/src/libstd/sync/mutex.rs index 0cb16b19d73..797b22fdd12 100644 --- a/src/libstd/sync/mutex.rs +++ b/src/libstd/sync/mutex.rs @@ -108,6 +108,7 @@ use crate::sys_common::poison::{self, LockResult, TryLockError, TryLockResult}; /// *guard += 1; /// ``` #[stable(feature = "rust1", since = "1.0.0")] +#[cfg_attr(not(test), rustc_diagnostic_item = "mutex_type")] pub struct Mutex<T: ?Sized> { // Note that this mutex is in a *box*, not inlined into the struct itself. // Once a native mutex has been used once, its address can never change (it |