From 3d74c74fa0761542353ee1a2f4a832e9ba9b5ac4 Mon Sep 17 00:00:00 2001
From: Mazdak Farrokhzad <twingoow@gmail.com>
Date: Wed, 14 Feb 2018 17:31:23 +0100
Subject: [PATCH] core::iter::Iterator::flatten: tracking issue is #48213

---
 src/libcore/iter/iterator.rs |  2 +-
 src/libcore/iter/mod.rs      | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/libcore/iter/iterator.rs b/src/libcore/iter/iterator.rs
index 879696ba8e7..75a0e6aa2e6 100644
--- a/src/libcore/iter/iterator.rs
+++ b/src/libcore/iter/iterator.rs
@@ -1075,7 +1075,7 @@ fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>
     /// assert_eq!(merged, "alphabetagamma");
     /// ```
     #[inline]
-    #[unstable(feature = "iterator_flatten", issue = "0")]
+    #[unstable(feature = "iterator_flatten", issue = "48213")]
     fn flatten(self) -> Flatten<Self>
     where Self: Sized, Self::Item: IntoIterator {
         Flatten { inner: flatten_compat(self) }
diff --git a/src/libcore/iter/mod.rs b/src/libcore/iter/mod.rs
index e498f7d1b93..623cad754dd 100644
--- a/src/libcore/iter/mod.rs
+++ b/src/libcore/iter/mod.rs
@@ -2494,13 +2494,13 @@ impl<I, U, F> FusedIterator for FlatMap<I, U, F>
 /// [`flatten`]: trait.Iterator.html#method.flatten
 /// [`Iterator`]: trait.Iterator.html
 #[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
-#[unstable(feature = "iterator_flatten", issue = "0")]
+#[unstable(feature = "iterator_flatten", issue = "48213")]
 pub struct Flatten<I: Iterator>
 where I::Item: IntoIterator {
     inner: FlattenCompat<I, <I::Item as IntoIterator>::IntoIter>,
 }
 
-#[unstable(feature = "iterator_flatten", issue = "0")]
+#[unstable(feature = "iterator_flatten", issue = "48213")]
 impl<I, U> fmt::Debug for Flatten<I>
     where I: Iterator + fmt::Debug, U: Iterator + fmt::Debug,
           I::Item: IntoIterator<IntoIter = U, Item = U::Item>,
@@ -2510,7 +2510,7 @@ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
     }
 }
 
-#[unstable(feature = "iterator_flatten", issue = "0")]
+#[unstable(feature = "iterator_flatten", issue = "48213")]
 impl<I, U> Clone for Flatten<I>
     where I: Iterator + Clone, U: Iterator + Clone,
           I::Item: IntoIterator<IntoIter = U, Item = U::Item>,
@@ -2518,7 +2518,7 @@ impl<I, U> Clone for Flatten<I>
     fn clone(&self) -> Self { Flatten { inner: self.inner.clone() } }
 }
 
-#[unstable(feature = "iterator_flatten", issue = "0")]
+#[unstable(feature = "iterator_flatten", issue = "48213")]
 impl<I, U> Iterator for Flatten<I>
     where I: Iterator, U: Iterator,
           I::Item: IntoIterator<IntoIter = U, Item = U::Item>
@@ -2546,7 +2546,7 @@ fn fold<Acc, Fold>(self, init: Acc, fold: Fold) -> Acc
     }
 }
 
-#[unstable(feature = "iterator_flatten", issue = "0")]
+#[unstable(feature = "iterator_flatten", issue = "48213")]
 impl<I, U> DoubleEndedIterator for Flatten<I>
     where I: DoubleEndedIterator, U: DoubleEndedIterator,
           I::Item: IntoIterator<IntoIter = U, Item = U::Item>
-- 
2.44.0