some more clippy-based improvements

4 files changed, 5 insertions, 5 deletions

diff --git a/src/libstd/rt/at_exit_imp.rs b/src/libstd/rt/at_exit_imp.rs
index 379c86eb2a0..7a1215bf382 100644
--- a/src/libstd/rt/at_exit_imp.rs
+++ b/src/libstd/rt/at_exit_imp.rs
@@ -42,7 +42,7 @@ unsafe fn init() -> bool {
         return false
     }
 
-    return true
+    true
 }
 
 pub fn cleanup() {
@@ -78,5 +78,5 @@ pub fn push(f: Box<FnBox()>) -> bool {
         }
         LOCK.unlock();
     }
-    return ret
+    ret
 }
diff --git a/src/libstd/rt/dwarf/eh.rs b/src/libstd/rt/dwarf/eh.rs
index 990501b28db..f4799703d99 100644
--- a/src/libstd/rt/dwarf/eh.rs
+++ b/src/libstd/rt/dwarf/eh.rs
@@ -104,7 +104,7 @@ pub unsafe fn find_landing_pad(lsda: *const u8, context: &EHContext)
     // IP range not found: gcc's C++ personality calls terminate() here,
     // however the rest of the languages treat this the same as cs_lpad == 0.
     // We follow this suit.
-    return None;
+    None
 }
 
 #[inline]
diff --git a/src/libstd/rt/mod.rs b/src/libstd/rt/mod.rs
index f2bf8757a51..95cba132201 100644
--- a/src/libstd/rt/mod.rs
+++ b/src/libstd/rt/mod.rs
@@ -73,7 +73,7 @@ fn lang_start(main: *const u8, argc: isize, argv: *const *const u8) -> isize {
         // created. Note that this isn't necessary in general for new threads,
         // but we just do this to name the main thread and to give it correct
         // info about the stack bounds.
-        let thread: Thread = NewThread::new(Some("<main>".to_string()));
+        let thread: Thread = NewThread::new(Some("<main>".to_owned()));
         thread_info::set(main_guard, thread);
 
         // By default, some platforms will send a *signal* when a EPIPE error
diff --git a/src/libstd/rt/util.rs b/src/libstd/rt/util.rs
index 0fe8d873a75..23a3c3e38c4 100644
--- a/src/libstd/rt/util.rs
+++ b/src/libstd/rt/util.rs
@@ -27,7 +27,7 @@ pub fn min_stack() -> usize {
     // 0 is our sentinel value, so ensure that we'll never see 0 after
     // initialization has run
     MIN.store(amt + 1, Ordering::SeqCst);
-    return amt;
+    amt
 }
 
 // Indicates whether we should perform expensive sanity checks, including rtassert!