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authormbartlett21 <29034492+mbartlett21@users.noreply.github.com>2021-05-18 13:40:26 +1000
committerGitHub <noreply@github.com>2021-05-18 13:40:26 +1000
commit18b0e7bf2cc527aae98af62a9d66b26759d84db3 (patch)
tree72e162a70419578c947d6f9e1c5d6293d42cd92a
parent5f10d310f475b3ba583b9c590b8d19f6c2fde28f (diff)
downloadrust-18b0e7bf2cc527aae98af62a9d66b26759d84db3.tar.gz
rust-18b0e7bf2cc527aae98af62a9d66b26759d84db3.zip
Fix must_use on `Option::is_none`
This fixes the `#[must_use = ...]` on `Option::is_none` to have a working suggestion.
-rw-r--r--library/core/src/option.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/library/core/src/option.rs b/library/core/src/option.rs
index 04551dded8c..8e8b623c50b 100644
--- a/library/core/src/option.rs
+++ b/library/core/src/option.rs
@@ -209,7 +209,7 @@ impl<T> Option<T> {
     /// assert_eq!(x.is_none(), true);
     /// ```
     #[must_use = "if you intended to assert that this doesn't have a value, consider \
-                  `.and_then(|| panic!(\"`Option` had a value when expected `None`\"))` instead"]
+                  `.and_then(|_| panic!(\"`Option` had a value when expected `None`\"))` instead"]
     #[inline]
     #[rustc_const_stable(feature = "const_option", since = "1.48.0")]
     #[stable(feature = "rust1", since = "1.0.0")]