diff --git a/crates/rust-analyzer/src/config.rs b/crates/rust-analyzer/src/config.rs
index 8fa9df4e69a..ac0fdf85a77 100644
--- a/crates/rust-analyzer/src/config.rs
+++ b/crates/rust-analyzer/src/config.rs
@@ -1277,7 +1277,7 @@ macro_rules! create_bool_or_string_de {
             impl<'de> serde::de::Visitor<'de> for V {
                 type Value = ();
 
-                fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+                fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
                     formatter.write_str(concat!(
                         stringify!($bool),
                         " or \"",
@@ -1344,7 +1344,7 @@ macro_rules! named_unit_variant {
             struct V;
             impl<'de> serde::de::Visitor<'de> for V {
                 type Value = ();
-                fn expecting(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+                fn expecting(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
                     f.write_str(concat!("\"", stringify!($variant), "\""))
                 }
                 fn visit_str<E: serde::de::Error>(self, value: &str) -> Result<Self::Value, E> {
@@ -1405,7 +1405,7 @@ where
     impl<'de> serde::de::Visitor<'de> for SingleOrVec {
         type Value = Vec<String>;
 
-        fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
+        fn expecting(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
             formatter.write_str("string or array of strings")
         }
 
diff --git a/crates/rust-analyzer/src/diff.rs b/crates/rust-analyzer/src/diff.rs
index 231be580778..3fcfb4a1b08 100644
--- a/crates/rust-analyzer/src/diff.rs
+++ b/crates/rust-analyzer/src/diff.rs
@@ -7,7 +7,7 @@ pub(crate) fn diff(left: &str, right: &str) -> TextEdit {
     textedit_from_chunks(chunks)
 }
 
-fn textedit_from_chunks(chunks: Vec<dissimilar::Chunk>) -> TextEdit {
+fn textedit_from_chunks(chunks: Vec<dissimilar::Chunk<'_>>) -> TextEdit {
     let mut builder = TextEdit::builder();
     let mut pos = TextSize::default();
 
diff --git a/crates/rust-analyzer/src/lib.rs b/crates/rust-analyzer/src/lib.rs
index 4b1e0cd5aeb..552379752fa 100644
--- a/crates/rust-analyzer/src/lib.rs
+++ b/crates/rust-analyzer/src/lib.rs
@@ -72,7 +72,7 @@ impl LspError {
 }
 
 impl fmt::Display for LspError {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(f, "Language Server request failed with {}. ({})", self.code, self.message)
     }
 }
diff --git a/crates/rust-analyzer/src/main_loop.rs b/crates/rust-analyzer/src/main_loop.rs
index 0579cae4ed0..5845cf712c8 100644
--- a/crates/rust-analyzer/src/main_loop.rs
+++ b/crates/rust-analyzer/src/main_loop.rs
@@ -75,8 +75,8 @@ pub(crate) enum PrimeCachesProgress {
 }
 
 impl fmt::Debug for Event {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        let debug_verbose_not = |not: &Notification, f: &mut fmt::Formatter| {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let debug_verbose_not = |not: &Notification, f: &mut fmt::Formatter<'_>| {
             f.debug_struct("Notification").field("method", &not.method).finish()
         };