refactor(self_update): make maybe_install_rust() async

Author: rami3l

src/cli/self_update.rs

@@ -458,7 +458,7 @@ pub(crate) async fn install(
         }
     }
 
-    let install_res: Result<utils::ExitCode> = (|| {
+    let install_res = || async {
         install_bins()?;
 
         #[cfg(unix)]
@@ -478,12 +478,13 @@ pub(crate) async fn install(
             opts.targets,
             verbose,
             quiet,
-        )?;
+        )
+        .await?;
 
         Ok(utils::ExitCode(0))
-    })();
+    };
 
-    if let Err(e) = install_res {
+    if let Err(e) = install_res().await {
         report_error(&e);
 
         // On windows, where installation happens in a console
@@ -839,7 +840,7 @@ pub(crate) fn install_proxies() -> Result<()> {
     Ok(())
 }
 
-fn maybe_install_rust(
+async fn maybe_install_rust(
     toolchain: Option<MaybeOfficialToolchainName>,
     profile_str: &str,
     default_host_triple: Option<&str>,
@@ -869,16 +870,19 @@ fn maybe_install_rust(
             // - delete the partial install and start over
             // For now, we error.
             let mut toolchain = DistributableToolchain::new(&cfg, desc.clone())?;
-            utils::run_future(toolchain.update(components, targets, cfg.get_profile()?))?
+            toolchain
+                .update(components, targets, cfg.get_profile()?)
+                .await?
         } else {
-            utils::run_future(DistributableToolchain::install(
+            DistributableToolchain::install(
                 &cfg,
                 desc,
                 components,
                 targets,
                 cfg.get_profile()?,
                 true,
-            ))?
+            )
+            .await?
             .0
         };