Make AsyncRuntime Fn Send + 'static

Signed-off-by: Tim Peters (HE/HIM) (from Dev Box) <timmypeters@microsoft.com>

Author: Darksecond

crates/core/src/pattern/asynk.rs

@@ -104,6 +104,6 @@ pub trait AsyncRuntime {
 
     fn spawn<Fn, F>(&self, f: Fn)
     where
-        Fn: FnOnce(Self::T) -> F,
+        Fn: FnOnce(Self::T) -> F + Send + 'static,
         F: Future<Output = ()> + Send + 'static;
 }

crates/proc_macros/src/runtime/emit.rs

@@ -25,7 +25,7 @@ impl RuntimeModel {
 
                 fn spawn<Fn, F>(&self, f: Fn)
                 where
-                    Fn: FnOnce(Self::T) -> F,
+                    Fn: FnOnce(Self::T) -> F + Send + 'static,
                     F: ::std::future::Future<Output = ()> + Send + 'static,
                 {
                     self.#forward_field.spawn(f)