Fix wasm32

Dockerfile

@@ -1,7 +1,7 @@
 ##################
 ### BASE STAGE ###
 ##################
-FROM rust:1.92.0 AS base
+FROM rust:1.94.0 AS base
 
 RUN rustup target add wasm32-unknown-unknown
 RUN rustup target add x86_64-unknown-linux-musl

gui/src/io.rs

@@ -40,6 +40,7 @@ impl Io {
     /// Spawn a fallible async function.
     ///
     /// Update the `ConnectionStatus` in the GUI depending on whether the result is an error.
+    #[cfg(not(target_arch = "wasm32"))]
     pub fn spawn<Fut>(&self, f: impl FnOnce() -> Fut + Send + 'static)
     where
         Fut: Future<Output = anyhow::Result<()>>,
@@ -64,4 +65,34 @@ impl Io {
                 .await;
         });
     }
+
+    /// Spawn a fallible async function.
+    ///
+    /// Update the `ConnectionStatus` in the GUI depending on whether the result is an error.
+    // FIXME: this function is duplicated from the one above, but without the `Send` requirement on the future.
+    #[cfg(target_arch = "wasm32")]
+    pub fn spawn<Fut>(&self, f: impl FnOnce() -> Fut + Send + 'static)
+    where
+        Fut: Future<Output = anyhow::Result<()>>,
+        Fut: 'static,
+    {
+        let io = self.clone();
+        spawn(async move {
+            let _ = io.state.status.send(ui::ConnectionStatus::Syncing).await;
+            let result = f().await;
+            let was_error = result.is_err();
+            if let Err(e) = result {
+                eprintln!("{e:?}");
+            }
+            let _ = io
+                .state
+                .status
+                .send(if was_error {
+                    ui::ConnectionStatus::Error
+                } else {
+                    ui::ConnectionStatus::Idle
+                })
+                .await;
+        });
+    }
 }