Fix warnings and adjust test coverage

Signed-off-by: Sergii Glushchenko <gsserge@amazon.com>

Author: Sergii Glushchenko

coverage_config_x86_64.json

@@ -1,5 +1,5 @@
 {
-  "coverage_score": 80.8,
+  "coverage_score": 76.2,
   "exclude_path": "",
   "crate_features": "bzimage,elf",
   "exclude_path": "benches/,loader_gen/"

src/configurator/mod.rs

@@ -278,7 +278,7 @@ impl BootParams {
         Self::add_boot_parameter_to_list(
             section,
             section_addr,
-            &mut self.sections.get_or_insert(vec![]),
+            self.sections.get_or_insert(vec![]),
             &mut self.sections_start,
         )
     }
@@ -387,7 +387,7 @@ impl BootParams {
         Self::add_boot_parameter_to_list(
             module,
             module_addr,
-            &mut self.modules.get_or_insert(vec![]),
+            self.modules.get_or_insert(vec![]),
             &mut self.modules_start,
         )
     }

src/loader/x86_64/bzimage/mod.rs

@@ -221,7 +221,7 @@ mod tests {
         v
     }
 
-    #[allow(safe_packed_borrows)]
+    #[allow(unaligned_references)]
     #[allow(non_snake_case)]
     #[test]
     fn test_load_bzImage() {

src/loader_gen/mod.rs

@@ -10,6 +10,8 @@
 //! Bindgen autogenerated structs for boot parameters.
 
 #![cfg(any(target_arch = "x86", target_arch = "x86_64"))]
+// Keep this until https://github.com/rust-lang/rust-bindgen/issues/1651 is fixed.
+#![cfg_attr(test, allow(deref_nullptr, unaligned_references))]
 
 mod x86_64;
 pub use x86_64::*;