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Diffstat (limited to 'src/libcore/iter/iterator.rs')
| -rw-r--r-- | src/libcore/iter/iterator.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libcore/iter/iterator.rs b/src/libcore/iter/iterator.rs index 31f77f92435..42fd9051292 100644 --- a/src/libcore/iter/iterator.rs +++ b/src/libcore/iter/iterator.rs @@ -1368,6 +1368,7 @@ pub trait Iterator { /// [`Result`]: ../../std/result/enum.Result.html #[inline] #[stable(feature = "rust1", since = "1.0.0")] + #[must_use = "if you really need to exhaust the iterator, consider `.for_each(drop)` instead"] fn collect<B: FromIterator<Self::Item>>(self) -> B where Self: Sized { FromIterator::from_iter(self) } |