Cover all features with clippy (#527)

* Fix lint

* Cover all/no features with clippy

.github/workflows/ci.yml

@@ -96,4 +96,8 @@ jobs:
       - uses: actions-rs/cargo@v1
         with:
           command: clippy
-          args: --workspace --all-targets -- -D warnings
+          args: -p ash --no-default-features -- -D warnings
+      - uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --workspace --all-targets --all-features -- -D warnings

ash/src/entry.rs

@@ -355,7 +355,7 @@ mod loaded {
 
     impl From<MissingEntryPoint> for LoadingError {
         fn from(err: MissingEntryPoint) -> Self {
-            LoadingError::MissingEntryPoint(err)
+            Self::MissingEntryPoint(err)
         }
     }
 }