diff --git a/crates/ide/src/doc_links/intra_doc_links.rs b/crates/ide/src/doc_links/intra_doc_links.rs
index d94999dddd..1df9aaae28 100644
--- a/crates/ide/src/doc_links/intra_doc_links.rs
+++ b/crates/ide/src/doc_links/intra_doc_links.rs
@@ -21,8 +21,7 @@ pub(super) fn parse_intra_doc_link(s: &str) -> (&str, Option<hir::Namespace>) {
         (hir::Namespace::Values, (VALUES.0.iter(), VALUES.1.iter())),
         (hir::Namespace::Macros, (MACROS.0.iter(), MACROS.1.iter())),
     ]
-    .iter()
-    .cloned()
+    .into_iter()
     .find_map(|(ns, (mut prefixes, mut suffixes))| {
         if let Some(prefix) = prefixes.find(|&&prefix| {
             s.starts_with(prefix)
@@ -42,8 +41,7 @@ pub(super) fn strip_prefixes_suffixes(s: &str) -> &str {
         (VALUES.0.iter(), VALUES.1.iter()),
         (MACROS.0.iter(), MACROS.1.iter()),
     ]
-    .iter()
-    .cloned()
+    .into_iter()
     .find_map(|(mut prefixes, mut suffixes)| {
         if let Some(prefix) = prefixes.find(|&&prefix| {
             s.starts_with(prefix)
diff --git a/crates/ide_assists/src/handlers/expand_glob_import.rs b/crates/ide_assists/src/handlers/expand_glob_import.rs
index 34eb235ce2..3abf06d588 100644
--- a/crates/ide_assists/src/handlers/expand_glob_import.rs
+++ b/crates/ide_assists/src/handlers/expand_glob_import.rs
@@ -226,7 +226,7 @@ fn find_imported_defs(ctx: &AssistContext, star: SyntaxToken) -> Option<Vec<Def>
 
     Some(
         [Direction::Prev, Direction::Next]
-            .iter()
+            .into_iter()
             .flat_map(|dir| {
                 parent_use_item_syntax
                     .siblings(dir.to_owned())
diff --git a/crates/ide_db/src/tests/sourcegen_lints.rs b/crates/ide_db/src/tests/sourcegen_lints.rs
index 3c37aa6cb9..3a44fab0f8 100644
--- a/crates/ide_db/src/tests/sourcegen_lints.rs
+++ b/crates/ide_db/src/tests/sourcegen_lints.rs
@@ -105,7 +105,7 @@ fn generate_lint_descriptor(buf: &mut String) {
 
 fn generate_feature_descriptor(buf: &mut String, src_dir: &Path) {
     let mut features = ["language-features", "library-features"]
-        .iter()
+        .into_iter()
         .flat_map(|it| sourcegen::list_files(&src_dir.join(it)))
         .filter(|path| {
             // Get all `.md ` files
diff --git a/crates/project_model/src/sysroot.rs b/crates/project_model/src/sysroot.rs
index 415bc4c9b7..52750f4896 100644
--- a/crates/project_model/src/sysroot.rs
+++ b/crates/project_model/src/sysroot.rs
@@ -43,8 +43,7 @@ impl Sysroot {
         // core is added as a dependency before std in order to
         // mimic rustcs dependency order
         ["core", "alloc", "std"]
-            .iter()
-            .copied()
+            .into_iter()
             .zip(iter::repeat(true))
             .chain(iter::once(("test", false)))
             .filter_map(move |(name, prelude)| Some((name, self.by_name(name)?, prelude)))
@@ -78,7 +77,7 @@ impl Sysroot {
         for path in SYSROOT_CRATES.trim().lines() {
             let name = path.split('/').last().unwrap();
             let root = [format!("{}/src/lib.rs", path), format!("lib{}/lib.rs", path)]
-                .iter()
+                .into_iter()
                 .map(|it| sysroot.root.join(it))
                 .filter_map(|it| ManifestPath::try_from(it).ok())
                 .find(|it| fs::metadata(it).is_ok());
diff --git a/crates/rust-analyzer/tests/slow-tests/support.rs b/crates/rust-analyzer/tests/slow-tests/support.rs
index 99ae418f7c..a8c2a5bb61 100644
--- a/crates/rust-analyzer/tests/slow-tests/support.rs
+++ b/crates/rust-analyzer/tests/slow-tests/support.rs
@@ -212,8 +212,8 @@ impl Server {
                     if req.method == "client/registerCapability" {
                         let params = req.params.to_string();
                         if ["workspace/didChangeWatchedFiles", "textDocument/didSave"]
-                            .iter()
-                            .any(|&it| params.contains(it))
+                            .into_iter()
+                            .any(|it| params.contains(it))
                         {
                             continue;
                         }