diff options
Diffstat (limited to 'library/std/src')
| -rw-r--r-- | library/std/src/thread/scoped.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/library/std/src/thread/scoped.rs b/library/std/src/thread/scoped.rs index 8c64a6e6201..2bc93549dab 100644 --- a/library/std/src/thread/scoped.rs +++ b/library/std/src/thread/scoped.rs @@ -11,6 +11,8 @@ use crate::sync::Arc; /// See [`scope`] for details. pub struct Scope<'env> { data: ScopeData, + /// Invariance over 'env, to make sure 'env cannot shrink, + /// which is necessary for soundness. env: PhantomData<&'env mut &'env ()>, } |