Rollup merge of rust-lang#78188 - fusion-engineering-forks:static-ref…

…-tracking-issue, r=withoutboats

Add tracking issue number for pin_static_ref

Forgot to add a tracking issue in rust-lang#77726. Opened rust-lang#78186 as tracking issue.

library/core/src/pin.rs

@@ -786,7 +786,7 @@ impl<T: ?Sized> Pin<&'static T> {
     ///
     /// This is safe, because `T` is borrowed for the `'static` lifetime, which
     /// never ends.
-    #[unstable(feature = "pin_static_ref", issue = "none")]
+    #[unstable(feature = "pin_static_ref", issue = "78186")]
     #[rustc_const_unstable(feature = "const_pin", issue = "76654")]
     pub const fn static_ref(r: &'static T) -> Pin<&'static T> {
         // SAFETY: The 'static borrow guarantees the data will not be
@@ -800,7 +800,7 @@ impl<T: ?Sized> Pin<&'static mut T> {
     ///
     /// This is safe, because `T` is borrowed for the `'static` lifetime, which
     /// never ends.
-    #[unstable(feature = "pin_static_ref", issue = "none")]
+    #[unstable(feature = "pin_static_ref", issue = "78186")]
     #[rustc_const_unstable(feature = "const_pin", issue = "76654")]
     pub const fn static_mut(r: &'static mut T) -> Pin<&'static mut T> {
         // SAFETY: The 'static borrow guarantees the data will not be