Fixes from PR

- Hide Docs
- Use repr_unpacked error

Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>

src/tools/tidy/src/pal.rs

@@ -56,6 +56,7 @@ const EXCEPTION_PATHS: &[&str] = &[
     "library/std/src/path.rs",
     "library/std/src/sys_common", // Should only contain abstractions over platforms
     "library/std/src/net/test.rs", // Utility helpers for tests
+    "library/std/src/io/error.rs", // Repr unpacked needed for UEFI
 ];
 
 pub fn check(path: &Path, bad: &mut bool) {