4 files changed, 6 insertions, 8 deletions

diff --git a/xtask/src/codegen/gen_assists_docs.rs b/xtask/src/codegen/gen_assists_docs.rs
index 0c4cf2152..05afda8f1 100644
--- a/xtask/src/codegen/gen_assists_docs.rs
+++ b/xtask/src/codegen/gen_assists_docs.rs
@@ -53,7 +53,7 @@ fn collect_assists() -> Result<Vec<Assist>> {
 
             let doc = take_until(lines.by_ref(), "```").trim().to_string();
             assert!(
-                doc.chars().next().unwrap().is_ascii_uppercase() && doc.ends_with("."),
+                doc.chars().next().unwrap().is_ascii_uppercase() && doc.ends_with('.'),
                 "\n\n{}: assist docs should be proper sentences, with capitalization and a full stop at the end.\n\n{}\n\n",
                 id, doc,
             );
diff --git a/xtask/src/codegen/gen_parser_tests.rs b/xtask/src/codegen/gen_parser_tests.rs
index db1e59dac..d0f0f683b 100644
--- a/xtask/src/codegen/gen_parser_tests.rs
+++ b/xtask/src/codegen/gen_parser_tests.rs
@@ -102,12 +102,10 @@ fn tests_from_dir(dir: &Path) -> Result<Tests> {
         for test in collect_tests(&text) {
             if test.ok {
                 if let Some(old_test) = res.ok.insert(test.name.clone(), test) {
-                    Err(format!("Duplicate test: {}", old_test.name))?
-                }
-            } else {
-                if let Some(old_test) = res.err.insert(test.name.clone(), test) {
-                    Err(format!("Duplicate test: {}", old_test.name))?
+                    return Err(format!("Duplicate test: {}", old_test.name).into());
                 }
+            } else if let Some(old_test) = res.err.insert(test.name.clone(), test) {
+                return Err(format!("Duplicate test: {}", old_test.name).into());
             }
         }
         Ok(())
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index 04dca402c..4d20232ff 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -60,7 +60,7 @@ fn main() -> Result<()> {
             matches.finish().or_else(handle_extra_flags)?;
             let opts = InstallOpt {
                 client: if server { None } else { Some(ClientOpt::VsCode) },
-                server: if client_code { None } else { Some(ServerOpt { jemalloc: jemalloc }) },
+                server: if client_code { None } else { Some(ServerOpt { jemalloc }) },
             };
             install(opts)?
         }
diff --git a/xtask/tests/tidy-tests/docs.rs b/xtask/tests/tidy-tests/docs.rs
index b766aeff1..6a629ce63 100644
--- a/xtask/tests/tidy-tests/docs.rs
+++ b/xtask/tests/tidy-tests/docs.rs
@@ -29,7 +29,7 @@ fn is_exclude_file(d: &DirEntry) -> bool {
 }
 
 fn is_hidden(entry: &DirEntry) -> bool {
-    entry.file_name().to_str().map(|s| s.starts_with(".")).unwrap_or(false)
+    entry.file_name().to_str().map(|s| s.starts_with('.')).unwrap_or(false)
 }
 
 #[test]