Fix ci (#1024)

* fix format

* fix clippy

* used fixed nightly

.github/workflows/ci.yml

@@ -103,7 +103,7 @@ jobs:
 
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: nightly
+          toolchain: nightly-2020-12-07
           components: rustfmt, clippy
           override: true
 
@@ -114,7 +114,7 @@ jobs:
         run: sudo apt-get update; sudo apt-get install --no-install-recommends libudev-dev
 
       - name: Check the format
-        run: cargo +nightly fmt --all -- --check
+        run: cargo +nightly-2020-12-07 fmt --all -- --check
 
       # type complexity must be ignored because we use huge templates for queries
       # -A clippy::manual-strip: strip_prefix support was added in 1.45. we want to support earlier rust versions

crates/bevy_render/src/renderer/render_resource/render_resource_bindings.rs

@@ -36,10 +36,13 @@ impl RenderResourceBinding {
     }
 
     pub fn is_dynamic_buffer(&self) -> bool {
-        matches!(self, RenderResourceBinding::Buffer {
+        matches!(
+            self,
+            RenderResourceBinding::Buffer {
                 dynamic_index: Some(_),
                 ..
-        })
+            }
+        )
     }
 
     pub fn get_sampler(&self) -> Option<SamplerId> {
@@ -239,10 +242,13 @@ impl RenderResourceBindings {
         self.bindings
             .iter()
             .filter(|(_, binding)| {
-                matches!(binding, RenderResourceBinding::Buffer {
+                matches!(
+                    binding,
+                    RenderResourceBinding::Buffer {
                         dynamic_index: Some(_),
                         ..
-                })
+                    }
+                )
             })
             .map(|(name, _)| name.as_str())
     }

crates/bevy_winit/src/lib.rs

@@ -342,15 +342,16 @@ pub fn winit_runner(mut app: App) {
                 }
                 _ => {}
             },
-            event::Event::DeviceEvent { ref event, .. } => {
+            event::Event::DeviceEvent {
-                if let DeviceEvent::MouseMotion { delta } = event {
+                event: DeviceEvent::MouseMotion { delta },
+                ..
+            } => {
                 let mut mouse_motion_events =
                     app.resources.get_mut::<Events<MouseMotion>>().unwrap();
                 mouse_motion_events.send(MouseMotion {
                     delta: Vec2::new(delta.0 as f32, delta.1 as f32),
                 });
             }
-            }
             event::Event::MainEventsCleared => {
                 handle_create_window_events(
                     &mut app.resources,