diff --git a/src/servo/html/hubbub_html_parser.rs b/src/servo/html/hubbub_html_parser.rs
index 91efd5306d6..ac43e3e8282 100644
--- a/src/servo/html/hubbub_html_parser.rs
+++ b/src/servo/html/hubbub_html_parser.rs
@@ -166,7 +166,7 @@ fn build_element_kind(tag: &str) -> ~ElementKind {
 }
 
 pub fn parse_html(scope: NodeScope,
-                  url: Url,
+                  +url: Url,
                   resource_task: ResourceTask,
                   image_cache_task: ImageCacheTask) -> HtmlParserResult unsafe {
     // Spawn a CSS parser to receive links to CSS style sheets.
@@ -183,7 +183,7 @@ pub fn parse_html(scope: NodeScope,
         js_script_listener(js_chan, js_port, resource_task);
     };
 
-    let (scope, url) = (@copy scope, @copy url);
+    let (scope, url) = (@copy scope, @url);
 
     // Build the root node.
     let root = scope.new_node(Element(ElementData(~"html", ~HTMLDivElement)));
diff --git a/src/servo/platform/osmain.rs b/src/servo/platform/osmain.rs
index 2ed8fe3587b..d0c235c85e6 100644
--- a/src/servo/platform/osmain.rs
+++ b/src/servo/platform/osmain.rs
@@ -101,11 +101,11 @@ fn mainloop(+mode: Mode, po: comm::Port<Msg>) {
             match po.recv() {
               AddKeyHandler(move key_ch) => key_handlers.push(move key_ch),
               AddEventListener(event_listener) => event_listeners.push(event_listener),
-              BeginDrawing(sender) => lend_surface(*surfaces, sender),
-              Draw(sender, dt) => {
+              BeginDrawing(move sender) => lend_surface(surfaces, sender),
+              Draw(move sender, move dt) => {
                 #debug("osmain: received new frame");
-                return_surface(*surfaces, dt);
-                lend_surface(*surfaces, sender);
+                return_surface(surfaces, dt);
+                lend_surface(surfaces, sender);
 
                 let buffer = surfaces.front.cairo_surface.data();
                 let image = @layers::layers::Image(800, 600, layers::layers::ARGB32Format,
@@ -182,7 +182,7 @@ struct SurfaceSet {
     mut back: Surface,
 }
 
-fn lend_surface(surfaces: SurfaceSet, receiver: pipes::Chan<DrawTarget>) {
+fn lend_surface(surfaces: &SurfaceSet, +receiver: pipes::Chan<DrawTarget>) {
     // We are in a position to lend out the surface?
     assert surfaces.front.have;
     // Ok then take it
@@ -197,7 +197,7 @@ fn lend_surface(surfaces: SurfaceSet, receiver: pipes::Chan<DrawTarget>) {
     assert surfaces.front.have;
 }
 
-fn return_surface(surfaces: SurfaceSet, draw_target: DrawTarget) {
+fn return_surface(surfaces: &SurfaceSet, +draw_target: DrawTarget) {
     #debug("osmain: returning surface %?", draw_target);
     // We have room for a return
     assert surfaces.front.have;
diff --git a/src/servo/resource/resource_task.rs b/src/servo/resource/resource_task.rs
index d3d212d22d4..fbd998de9bf 100644
--- a/src/servo/resource/resource_task.rs
+++ b/src/servo/resource/resource_task.rs
@@ -73,7 +73,7 @@ pub struct ResourceManager {
 
 
 pub fn ResourceManager(from_client: Port<ControlMsg>, 
-                       loaders: ~[(~str, LoaderTaskFactory)]) -> ResourceManager {
+                       +loaders: ~[(~str, LoaderTaskFactory)]) -> ResourceManager {
     ResourceManager {
         from_client : from_client,
         loaders : loaders,
@@ -97,7 +97,7 @@ impl ResourceManager {
 
     fn load(+url: Url, progress_chan: Chan<ProgressMsg>) {
 
-        match self.get_loader_factory(url) {
+        match self.get_loader_factory(&url) {
           Some(loader_factory) => {
             #debug("resource_task: loading url: %s", to_str(copy url));
             loader_factory(url, progress_chan);
@@ -109,7 +109,7 @@ impl ResourceManager {
         }
     }
 
-    fn get_loader_factory(url: Url) -> Option<LoaderTaskFactory> {
+    fn get_loader_factory(url: &Url) -> Option<LoaderTaskFactory> {
         for self.loaders.each |scheme_loader| {
             let (scheme, loader_factory) = copy *scheme_loader;
             if scheme == url.scheme {
diff --git a/src/servo/text/text_run.rs b/src/servo/text/text_run.rs
index 2d5331ea320..e89c212b4e2 100644
--- a/src/servo/text/text_run.rs
+++ b/src/servo/text/text_run.rs
@@ -120,7 +120,7 @@ impl TextRun {
     }
 }
  
-fn TextRun(font: &Font, text: ~str) -> TextRun {
+fn TextRun(font: &Font, +text: ~str) -> TextRun {
     let glyph_store = GlyphStore(text);
     let run = TextRun {
         text: text,
@@ -154,7 +154,7 @@ fn test_calc_min_break_width() {
 #[test]
 #[ignore]
 fn test_iter_indivisible_pieces() {
-    fn test_pieces(text: ~str, res: ~[~str]) {
+    fn test_pieces(+text: ~str, +res: ~[~str]) {
         let flib = FontCache();
         let font = flib.get_test_font();
         let run = TextRun(font, copy text);