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Jane Losare-Lusby 2022-07-15 13:17:44 -07:00 • committed by GitHub
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library/std/src/io/error.rs
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@ -836,7 +836,7 @@ impl Error {
/// }
/// }
/// ```
#[unstable(feature = "io_error_downcast", issue = "none")]
#[unstable(feature = "io_error_downcast", issue = "99262")]
pub fn downcast<E>(self) -> result::Result<Box<E>, Self>
where
E: error::Error + Send + Sync + 'static,