3 files changed, 5 insertions, 11 deletions
diff --git a/compiler/rustc_middle/src/middle/privacy.rs b/compiler/rustc_middle/src/middle/privacy.rs
index fc08d58cc..0e18ba73d 100644
--- a/compiler/rustc_middle/src/middle/privacy.rs
+++ b/compiler/rustc_middle/src/middle/privacy.rs
@@ -103,12 +103,7 @@ impl EffectiveVisibilities {
 
     pub fn public_at_level(&self, id: LocalDefId) -> Option<Level> {
         self.effective_vis(id).and_then(|effective_vis| {
-            for level in Level::all_levels() {
-                if effective_vis.is_public_at_level(level) {
-                    return Some(level);
-                }
-            }
-            None
+            Level::all_levels().into_iter().find(|&level| effective_vis.is_public_at_level(level))
         })
     }
 
diff --git a/compiler/rustc_middle/src/middle/region.rs b/compiler/rustc_middle/src/middle/region.rs
index c886175c6..94ca38c0e 100644
--- a/compiler/rustc_middle/src/middle/region.rs
+++ b/compiler/rustc_middle/src/middle/region.rs
@@ -147,9 +147,8 @@ rustc_index::newtype_index! {
     ///
     /// * The subscope with `first_statement_index == 1` is scope of `c`,
     ///   and thus does not include EXPR_2, but covers the `...`.
-    pub struct FirstStatementIndex {
-        derive [HashStable]
-    }
+    #[derive(HashStable)]
+    pub struct FirstStatementIndex {}
 }
 
 // compilation error if size of `ScopeData` is not the same as a `u32`
diff --git a/compiler/rustc_middle/src/middle/stability.rs b/compiler/rustc_middle/src/middle/stability.rs
index 61bc089e4..0836f236e 100644
--- a/compiler/rustc_middle/src/middle/stability.rs
+++ b/compiler/rustc_middle/src/middle/stability.rs
@@ -223,8 +223,8 @@ pub fn deprecation_message_and_lint(
     )
 }
 
-pub fn early_report_deprecation<'a>(
-    lint_buffer: &'a mut LintBuffer,
+pub fn early_report_deprecation(
+    lint_buffer: &mut LintBuffer,
     message: &str,
     suggestion: Option<Symbol>,
     lint: &'static Lint,