diff --git a/perlmod-macro/src/function.rs b/perlmod-macro/src/function.rs
index 9e982c2..5260878 100644
--- a/perlmod-macro/src/function.rs
+++ b/perlmod-macro/src/function.rs
@@ -83,10 +83,10 @@ pub fn handle_function(
         .xs_name
         .clone()
         .unwrap_or_else(|| match mangled_package_name {
-            None => Ident::new(&format!("xs_{}", name), name.span()),
-            Some(prefix) => Ident::new(&format!("xs_{}_{}", prefix, name), name.span()),
+            None => Ident::new(&format!("xs_{name}"), name.span()),
+            Some(prefix) => Ident::new(&format!("xs_{prefix}_{name}"), name.span()),
         });
-    let impl_xs_name = Ident::new(&format!("impl_xs_{}", name), name.span());
+    let impl_xs_name = Ident::new(&format!("impl_xs_{name}"), name.span());
 
     let mut trailing_options = 0;
     let mut extract_arguments = TokenStream::new();
@@ -134,12 +134,12 @@ pub fn handle_function(
             continue;
         }
 
-        let extracted_name = Ident::new(&format!("extracted_arg_{}", arg_name), arg_name.span());
+        let extracted_name = Ident::new(&format!("extracted_arg_{arg_name}"), arg_name.span());
         let deserialized_name =
-            Ident::new(&format!("deserialized_arg_{}", arg_name), arg_name.span());
+            Ident::new(&format!("deserialized_arg_{arg_name}"), arg_name.span());
 
         let missing_message = syn::LitStr::new(
-            &format!("missing required parameter: '{}'\n", arg_name),
+            &format!("missing required parameter: '{arg_name}'\n"),
             arg_name.span(),
         );
 
@@ -553,7 +553,7 @@ pub fn get_result_type(ty: &syn::Type) -> (&syn::Type, bool) {
 
 /// Get a non-suffixed integer from an usize.
 fn simple_usize(i: usize, span: Span) -> syn::LitInt {
-    syn::LitInt::new(&format!("{}", i), span)
+    syn::LitInt::new(&format!("{i}"), span)
 }
 
 /// Note that we cannot handle renamed imports at all here...
diff --git a/perlmod-macro/src/package.rs b/perlmod-macro/src/package.rs
index 75b4528..313f6a4 100644
--- a/perlmod-macro/src/package.rs
+++ b/perlmod-macro/src/package.rs
@@ -132,10 +132,10 @@ impl Package {
         );
 
         if let Some(lib) = &self.attrs.lib_name {
-            source = source.replace("{{LIB_NAME}}", &format!("('{}')", lib));
+            source = source.replace("{{LIB_NAME}}", &format!("('{lib}')"));
         } else {
             let lib_name = get_default_lib_name(Span::call_site())?;
-            source = source.replace("{{LIB_NAME}}", &format!("('{}')", lib_name));
+            source = source.replace("{{LIB_NAME}}", &format!("('{lib_name}')"));
         }
 
         let file_name = self
diff --git a/perlmod-test/src/option.rs b/perlmod-test/src/option.rs
index 257ba5a..f71540e 100644
--- a/perlmod-test/src/option.rs
+++ b/perlmod-test/src/option.rs
@@ -9,7 +9,7 @@ mod export {
 
     #[export]
     pub fn to_string(tristate: Option<bool>) -> String {
-        format!("{:?}", tristate)
+        format!("{tristate:?}")
     }
 
     #[export]
diff --git a/perlmod-test/src/pkg142.rs b/perlmod-test/src/pkg142.rs
index 5ae25c8..11d528b 100644
--- a/perlmod-test/src/pkg142.rs
+++ b/perlmod-test/src/pkg142.rs
@@ -40,19 +40,19 @@ mod export {
 
     #[export]
     fn test(t: Option<String>) -> Result<(), Error> {
-        println!("test called with {:?}", t);
+        println!("test called with {t:?}");
         Ok(())
     }
 
     #[export]
     fn teststr(t: Option<&str>) -> Result<(), Error> {
-        println!("teststr called with {:?}", t);
+        println!("teststr called with {t:?}");
         Ok(())
     }
 
     #[export]
     fn test_serde(value: super::Blubber) -> Result<String, Error> {
-        println!("got {:?}", value);
+        println!("got {value:?}");
         Ok(value.0)
     }
 
@@ -73,7 +73,7 @@ mod export {
 
     #[export]
     fn test_trailing_optional(first: u32, second: Option<u32>) {
-        println!("{:?}, {:?}", first, second);
+        println!("{first:?}, {second:?}");
     }
 
     #[export(xs_name = "testit_xsub")]
@@ -93,7 +93,7 @@ mod expanded_export {
 
     #[export]
     fn test_lib_env_vars(value: &str) -> Result<(), Error> {
-        println!("foo: {:?}", value);
+        println!("foo: {value:?}");
         Ok(())
     }
 }
diff --git a/perlmod/build.rs b/perlmod/build.rs
index 047005d..00c1064 100644
--- a/perlmod/build.rs
+++ b/perlmod/build.rs
@@ -7,8 +7,8 @@ use std::{env, fs, io};
 fn main() {
     let out_dir = env::var("OUT_DIR").expect("expected OUT_DIR to be set by cargo");
 
-    let include_dir = format!("{}/include", out_dir);
-    let ppport_h_file = format!("{}/ppport.h", include_dir);
+    let include_dir = format!("{out_dir}/include");
+    let ppport_h_file = format!("{include_dir}/ppport.h");
     // quoted, without exterial double qoutes
     let ppport_h_file_string_inner = ppport_h_file.replace('"', "\\\"");
 
@@ -23,8 +23,7 @@ fn main() {
         .arg("-MDevel::PPPort")
         .arg("-e")
         .arg(&format!(
-            r#"Devel::PPPort::WriteFile("{}");"#,
-            ppport_h_file_string_inner
+            r#"Devel::PPPort::WriteFile("{ppport_h_file_string_inner}");"#
         ))
         .output()
         .expect("failed to create ppport.h file using perl's Devel::PPPort");
diff --git a/perlmod/src/array.rs b/perlmod/src/array.rs
index 9c9aa08..d0e510f 100644
--- a/perlmod/src/array.rs
+++ b/perlmod/src/array.rs
@@ -161,10 +161,10 @@ impl std::fmt::Debug for Array {
         let mut comma = false;
         for i in self {
             if comma {
-                write!(f, ", {:?}", i)?;
+                write!(f, ", {i:?}")?;
             } else {
                 comma = true;
-                write!(f, "{:?}", i)?;
+                write!(f, "{i:?}")?;
             }
         }
         write!(f, "]")?;
diff --git a/perlmod/src/de.rs b/perlmod/src/de.rs
index 6cfd786..99017f3 100644
--- a/perlmod/src/de.rs
+++ b/perlmod/src/de.rs
@@ -72,8 +72,7 @@ impl<'deserializer> Deserializer<'deserializer> {
             match value.ty() {
                 Type::Scalar(_) => Ok(()),
                 Type::Other(other) => Err(Error(format!(
-                    "cannot deserialize weird magic perl values ({})",
-                    other
+                    "cannot deserialize weird magic perl values ({other})"
                 ))),
                 // These are impossible as they are all handled by different Value enum types:
                 Type::Reference => Error::fail("Value::Scalar: containing a reference"),
@@ -185,7 +184,7 @@ impl<'deserializer> Deserializer<'deserializer> {
 /// lifetime needs to only live as long as the serializer, and we feed our serializer with the data
 /// from a borrowed Value (keeping references to all the contained data within perl), which lives
 /// longer than the deserializer.
-unsafe fn str_set_wrong_lifetime<'a, 'b>(s: &'a str) -> &'b str {
+unsafe fn str_set_wrong_lifetime<'a>(s: &'_ str) -> &'a str {
     unsafe { std::str::from_utf8_unchecked(std::slice::from_raw_parts(s.as_ptr(), s.len())) }
 }
 
diff --git a/perlmod/src/error.rs b/perlmod/src/error.rs
index 75891c7..b47fe0a 100644
--- a/perlmod/src/error.rs
+++ b/perlmod/src/error.rs
@@ -70,15 +70,14 @@ impl fmt::Display for MagicError {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match self {
             MagicError::NotAReference(class) => {
-                write!(f, "value blessed into {} was not a reference", class)
+                write!(f, "value blessed into {class} was not a reference")
             }
             MagicError::NotFound("") => {
                 write!(f, "value did not contain the requested magic pointer")
             }
             MagicError::NotFound(class) => write!(
                 f,
-                "value blessed into {} did not contain its declared magic pointer",
-                class
+                "value blessed into {class} did not contain its declared magic pointer"
             ),
         }
     }
diff --git a/perlmod/src/scalar.rs b/perlmod/src/scalar.rs
index 0a7ca00..9d53a85 100644
--- a/perlmod/src/scalar.rs
+++ b/perlmod/src/scalar.rs
@@ -368,7 +368,7 @@ impl ScalarRef {
 
         let bytes: [u8; mem::size_of::<usize>()] = bytes
             .try_into()
-            .map_err(|err| Error(format!("invalid value for pointer: {}", err)))?;
+            .map_err(|err| Error(format!("invalid value for pointer: {err}")))?;
 
         Ok(usize::from_ne_bytes(bytes) as *mut T)
     }
@@ -539,9 +539,9 @@ impl ScalarRef {
     /// # Safety
     ///
     /// It is up to the user to ensure the correct types are used in the provided `MagicSpec`.
-    pub fn find_magic<'a, 's, 'm, T: Leakable>(
-        &'s self,
-        spec: &'m MagicSpec<'static, 'static, T>,
+    pub fn find_magic<'a, T: Leakable>(
+        &'_ self,
+        spec: &'_ MagicSpec<'static, 'static, T>,
     ) -> Option<&'a T::Pointee> {
         match self.find_raw_magic(spec.how, Some(spec.vtbl)) {
             None => None,
@@ -666,8 +666,7 @@ impl serde::Serialize for Scalar {
                 }
             }
             Type::Other(other) => Err(S::Error::custom(format!(
-                "cannot serialize weird magic perl values ({})",
-                other,
+                "cannot serialize weird magic perl values ({other})",
             ))),
 
             // These are impossible as they are all handled by different Value enum types:
diff --git a/perlmod/src/value.rs b/perlmod/src/value.rs
index b320b0c..d4e9176 100644
--- a/perlmod/src/value.rs
+++ b/perlmod/src/value.rs
@@ -322,8 +322,7 @@ impl Value {
         let reftype = ptr.reftype(true);
         if reftype != package {
             return Err(Error::new_owned(format!(
-                "value not blessed into {:?} (`ref` returned {:?})",
-                package, reftype,
+                "value not blessed into {package:?} (`ref` returned {reftype:?})",
             )));
         }