Missed linux changes

Author: Robo210

src/native/user_events.rs

@@ -21,7 +21,7 @@ use tracing_subscriber::registry::{LookupSpan, SpanRef};
 pub(crate) type ProviderGroupType = std::borrow::Cow<'static, str>;
 
 // These are automagically generated by the compiler for the start and stop of section _etw_kw
-extern "C" {
+unsafe extern "C" {
     #[link_name = "__start__etw_kw"]
     pub(crate) static _start__etw_kw: usize;
     #[link_name = "__stop__etw_kw"]
@@ -56,7 +56,7 @@ impl AddFieldAndValue for &'_ mut eventheader_dynamic::EventBuilder {
             ValueTypes::v_bool(b) => {
                 self.add_value(fv.field_name, *b, FieldFormat::Boolean, 0);
             }
-            ValueTypes::v_str(ref s) => {
+            ValueTypes::v_str(s) => {
                 self.add_str(fv.field_name, s.as_ref(), FieldFormat::Default, 0);
             }
             ValueTypes::v_char(c) => {
@@ -128,7 +128,7 @@ impl<OutMode: OutputMode> crate::native::ProviderTraits for Provider<OutMode> {
         for<'a> &'a G: Into<crate::native::GuidWrapper>,
     {
         let mut options = eventheader_dynamic::Provider::new_options();
-        if let Some(ref name) = provider_group {
+        if let Some(name) = provider_group {
             options = *options.group_name(name);
         }
         let mut provider = eventheader_dynamic::Provider::new(provider_name, &options);