subscriber: make Layer impls for Box<dyn Layer<..>> Send+Sync (#1547)

davidbarsky · davidbarsky · commit 92ca4a1f4fd4 · 2021-09-13T17:11:04.000-04:00
And for Arc This is a fixup for #1536.
diff --git a/tracing-subscriber/src/subscribe.rs b/tracing-subscriber/src/subscribe.rs
@@ -957,7 +957,7 @@ where
     subscriber_impl_body! {}
 }
 
-impl<C> Subscribe<C> for Arc<dyn Subscribe<C>>
+impl<C> Subscribe<C> for Arc<dyn Subscribe<C> + Send + Sync>
 where
     C: Collect,
 {
@@ -972,7 +972,7 @@ where
     subscriber_impl_body! {}
 }
 
-impl<C> Subscribe<C> for Box<dyn Subscribe<C>>
+impl<C> Subscribe<C> for Box<dyn Subscribe<C> + Send + Sync>
 where
     C: Collect,
 {

Original file line number	Diff line number	Diff line change
`@@ -957,7 +957,7 @@ where`
`957`	`957`	`subscriber_impl_body! {}`
`958`	`958`	`}`
`959`	`959`
`960`		`-impl<C> Subscribe<C> for Arc<dyn Subscribe<C>>`
	`960`	`+impl<C> Subscribe<C> for Arc<dyn Subscribe<C> + Send + Sync>`
`961`	`961`	`where`
`962`	`962`	`C: Collect,`
`963`	`963`	`{`
`@@ -972,7 +972,7 @@ where`
`972`	`972`	`subscriber_impl_body! {}`
`973`	`973`	`}`
`974`	`974`
`975`		`-impl<C> Subscribe<C> for Box<dyn Subscribe<C>>`
	`975`	`+impl<C> Subscribe<C> for Box<dyn Subscribe<C> + Send + Sync>`
`976`	`976`	`where`
`977`	`977`	`C: Collect,`
`978`	`978`	`{`