Clippy all targets (#153)

* Fix clippy lints in tests

* CI: let clippy lint also tests

They deserve equal clippy love, right? :)

.github/workflows/rust.yml

@@ -56,4 +56,4 @@ jobs:
       uses: actions-rs/cargo@v1
       with:
         command: clippy
-        args: -- -D warnings
+        args: --all-targets -- -D warnings

wireguard-control-sys/src/lib.rs

@@ -1,6 +1,8 @@
 #![allow(non_upper_case_globals)]
 #![allow(non_camel_case_types)]
 #![allow(non_snake_case)]
+// https://github.com/rust-lang/rust-bindgen/issues/1651
+#![allow(deref_nullptr)]
 
 #[cfg(target_os = "linux")]
 include!(concat!(env!("OUT_DIR"), "/bindings.rs"));

wireguard-control/src/backends/userspace.rs

@@ -491,22 +491,22 @@ mod test {
     #[test]
     fn test_rng_sanity_private() {
         let first = Key::generate_private();
-        assert!(first.as_bytes() != &[0u8; 32]);
+        assert!(first.as_bytes() != [0u8; 32]);
         for _ in 0..100_000 {
             let key = Key::generate_private();
             assert!(first != key);
-            assert!(key.as_bytes() != &[0u8; 32]);
+            assert!(key.as_bytes() != [0u8; 32]);
         }
     }
 
     #[test]
     fn test_rng_sanity_preshared() {
         let first = Key::generate_preshared();
-        assert!(first.as_bytes() != &[0u8; 32]);
+        assert!(first.as_bytes() != [0u8; 32]);
         for _ in 0..100_000 {
             let key = Key::generate_preshared();
             assert!(first != key);
-            assert!(key.as_bytes() != &[0u8; 32]);
+            assert!(key.as_bytes() != [0u8; 32]);
         }
     }
 }