No longer put mutexes on the 'unsupported' platform in a box.

m-ou-se · m-ou-se · commit 2f0386771d17 · 2020-10-02T09:47:08.000+02:00
These mutexes are just a bool (in a cell), so can be moved without
problems.
diff --git a/library/std/src/sys/unsupported/mutex.rs b/library/std/src/sys/unsupported/mutex.rs
@@ -4,7 +4,7 @@ pub struct Mutex {
     locked: UnsafeCell<bool>,
 }
 
-pub type MovableMutex = Box<Mutex>;
+pub type MovableMutex = Mutex;
 
 unsafe impl Send for Mutex {}
 unsafe impl Sync for Mutex {} // no threads on this platform

Original file line number	Diff line number	Diff line change
`@@ -4,7 +4,7 @@ pub struct Mutex {`
`4`	`4`	`locked: UnsafeCell<bool>,`
`5`	`5`	`}`
`6`	`6`
`7`		`-pub type MovableMutex = Box<Mutex>;`
	`7`	`+pub type MovableMutex = Mutex;`
`8`	`8`
`9`	`9`	`unsafe impl Send for Mutex {}`
`10`	`10`	`unsafe impl Sync for Mutex {} // no threads on this platform`