diff --git a/src/__private_api.rs b/src/__private_api.rs
index 58d4c0fab..a9492aeed 100644
--- a/src/__private_api.rs
+++ b/src/__private_api.rs
@@ -18,7 +18,7 @@ mod sealed {
 
 // Types for the `kv` argument.
 
-impl<'a> KVs<'a> for &'a [(&'a str, Value<'a>)] {
+impl<'a, const N: usize> KVs<'a> for &'a [(&'a str, Value<'a>); N] {
     #[inline]
     fn into_kvs(self) -> Option<&'a [(&'a str, Value<'a>)]> {
         Some(self)
diff --git a/src/lib.rs b/src/lib.rs
index a8de0e290..688e6221e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1528,7 +1528,8 @@ where
 pub unsafe fn set_logger_racy(logger: &'static dyn Log) -> Result<(), SetLoggerError> {
     match STATE.load(Ordering::Acquire) {
         UNINITIALIZED => {
-            LOGGER = logger;
+            // SAFETY: Access to `LOGGER` is synchronized through `STATE`
+            unsafe { LOGGER = logger };
             STATE.store(INITIALIZED, Ordering::Release);
             Ok(())
         }
diff --git a/src/macros.rs b/src/macros.rs
index 14e4ac64b..77da9a840 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -126,7 +126,7 @@ macro_rules! __log {
                 $crate::__private_api::format_args!($($arg)+),
                 lvl,
                 &($target, $crate::__private_api::module_path!(), $crate::__private_api::loc()),
-                &[$(($crate::__log_key!($key), $crate::__log_value!($key $(:$capture)* = $($value)*))),+] as &[_],
+                &[$(($crate::__log_key!($key), $crate::__log_value!($key $(:$capture)* = $($value)*))),+],
             );
         }
     });
@@ -431,9 +431,7 @@ macro_rules! __log_logger {
         $crate::__private_api::GlobalLogger
     }};
 
-    ($logger:expr) => {{
-        &($logger)
-    }};
+    ($logger:expr) => {&($logger)};
 }
 
 // These macros use a pattern of #[cfg]s to produce nicer error