Use '_ for irrelevant lifetimes in Debug impl.

m-ou-se · danielhenrymantilla · web-flow · commit 9099353ea88c · 2022-03-04T10:41:39.000Z
Co-authored-by: Daniel Henry-Mantilla &lt;daniel.henry.mantilla@gmail.com&gt;
diff --git a/library/std/src/thread/scoped.rs b/library/std/src/thread/scoped.rs
@@ -301,7 +301,7 @@ impl<'scope, T> ScopedJoinHandle<'scope, T> {
     }
 }
 
-impl<'scope, 'env> fmt::Debug for Scope<'scope, 'env> {
+impl fmt::Debug for Scope<'_, '_> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("Scope")
             .field("num_running_threads", &self.data.num_running_threads.load(Ordering::Relaxed))

Original file line number	Diff line number	Diff line change
`@@ -301,7 +301,7 @@ impl<'scope, T> ScopedJoinHandle<'scope, T> {`
`301`	`301`	`}`
`302`	`302`	`}`
`303`	`303`
`304`		`-impl<'scope, 'env> fmt::Debug for Scope<'scope, 'env> {`
	`304`	`+impl fmt::Debug for Scope<'_, '_> {`
`305`	`305`	`fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {`
`306`	`306`	`f.debug_struct("Scope")`
`307`	`307`	`.field("num_running_threads", &self.data.num_running_threads.load(Ordering::Relaxed))`