Fix doctest failure
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1 changed files with 3 additions and 1 deletions
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@ -839,9 +839,11 @@ impl<T> Weak<T> {
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/// # Examples
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///
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/// ```
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/// #![feature(downgraded_weak)]
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///
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/// use std::rc::Weak;
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///
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/// let five = Weak::new_downgraded();
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/// let empty:Weak<i64> = Weak::new_downgraded();
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/// ```
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#[unstable(feature = "downgraded_weak",
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