glib: Add missing Send bound to the output type of the spawn_from_within() future

Author: sdroege

glib/src/main_context_futures.rs

@@ -580,7 +580,7 @@ impl MainContext {
     /// The given `Future` does not have to be `Send` but the closure to spawn it has to be.
     ///
     /// This can be called only from any thread.
-    pub fn spawn_from_within<R: 'static, F: Future<Output = R> + 'static>(
+    pub fn spawn_from_within<R: Send + 'static, F: Future<Output = R> + 'static>(
         &self,
         func: impl FnOnce() -> F + Send + 'static,
     ) -> SpawnWithinJoinHandle<R> {
@@ -593,7 +593,7 @@ impl MainContext {
     /// The given `Future` does not have to be `Send` but the closure to spawn it has to be.
     ///
     /// This can be called only from any thread.
-    pub fn spawn_from_within_with_priority<R: 'static, F: Future<Output = R> + 'static>(
+    pub fn spawn_from_within_with_priority<R: Send + 'static, F: Future<Output = R> + 'static>(
         &self,
         priority: Priority,
         func: impl FnOnce() -> F + Send + 'static,