Some debugging improvements and code style nits across gfx and constellation.

 * Propagate the RUST_LOG env var to the child process
 * Add debug information when a recv() fails in paint thread's select!.

1 files changed, 3 insertions, 4 deletions

diff --git a/components/gfx/paint_thread.rs b/components/gfx/paint_thread.rs
index b4ad2abd299..6fad77dbcf3 100644
--- a/components/gfx/paint_thread.rs
+++ b/components/gfx/paint_thread.rs
@@ -379,8 +379,7 @@ impl<C> PaintThread<C> where C: PaintListener + Send + 'static {
                   font_cache_thread: FontCacheThread,
                   time_profiler_chan: time::ProfilerChan,
                   mem_profiler_chan: mem::ProfilerChan) {
-        thread::spawn_named(format!("PaintThread {:?}", id),
-                            move || {
+        thread::spawn_named(format!("PaintThread {:?}", id), move || {
             thread_state::initialize(thread_state::PAINT);
             PipelineId::install(id);
 
@@ -425,9 +424,9 @@ impl<C> PaintThread<C> where C: PaintListener + Send + 'static {
                 let chrome_to_paint = &self.chrome_to_paint_port;
                 select! {
                     msg = layout_to_paint.recv() =>
-                        Msg::FromLayout(msg.unwrap()),
+                        Msg::FromLayout(msg.expect("expected message from layout")),
                     msg = chrome_to_paint.recv() =>
-                        Msg::FromChrome(msg.unwrap())
+                        Msg::FromChrome(msg.expect("expected message from chrome"))
                 }
             };