Fix `time::Every` implementation for `smol` runtime

examples/stopwatch/Cargo.toml

@@ -6,4 +6,4 @@ edition = "2018"
 publish = false
 
 [dependencies]
-iced = { path = "../..", features = ["tokio"] }
+iced = { path = "../..", features = ["smol"] }

futures/Cargo.toml

@@ -37,7 +37,7 @@ optional = true
 features = ["unstable"]
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies.smol]
-version = "1.0"
+version = "1.2"
 optional = true
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]

futures/src/time.rs

@@ -35,8 +35,16 @@ where
         _input: futures::stream::BoxStream<'static, E>,
     ) -> futures::stream::BoxStream<'static, Self::Output> {
         use futures::stream::StreamExt;
+        use std::time::Instant;
 
-        smol::Timer::interval(self.0).boxed()
+        let duration = self.0;
+
+        futures::stream::unfold(Instant::now(), move |last_tick| async move {
+            let last_tick = smol::Timer::at(last_tick + duration).await;
+
+            Some((last_tick, last_tick))
+        })
+        .boxed()
     }
 }