Remove redundant [..]s

3 files changed, 4 insertions, 4 deletions

diff --git a/compiler/rustc_data_structures/src/fingerprint.rs b/compiler/rustc_data_structures/src/fingerprint.rs
index c0c0e7be3ca..c9af35da4bc 100644
--- a/compiler/rustc_data_structures/src/fingerprint.rs
+++ b/compiler/rustc_data_structures/src/fingerprint.rs
@@ -142,7 +142,7 @@ impl_stable_hash_via_hash!(Fingerprint);
 impl<E: rustc_serialize::Encoder> Encodable<E> for Fingerprint {
     #[inline]
     fn encode(&self, s: &mut E) -> Result<(), E::Error> {
-        s.emit_raw_bytes(&self.to_le_bytes()[..])?;
+        s.emit_raw_bytes(&self.to_le_bytes())?;
         Ok(())
     }
 }
@@ -151,7 +151,7 @@ impl<D: rustc_serialize::Decoder> Decodable<D> for Fingerprint {
     #[inline]
     fn decode(d: &mut D) -> Result<Self, D::Error> {
         let mut bytes = [0u8; 16];
-        d.read_raw_bytes_into(&mut bytes[..])?;
+        d.read_raw_bytes_into(&mut bytes)?;
         Ok(Fingerprint::from_le_bytes(bytes))
     }
 }
diff --git a/compiler/rustc_data_structures/src/profiling.rs b/compiler/rustc_data_structures/src/profiling.rs
index c21939209fc..fd6ff086b08 100644
--- a/compiler/rustc_data_structures/src/profiling.rs
+++ b/compiler/rustc_data_structures/src/profiling.rs
@@ -649,7 +649,7 @@ impl Drop for VerboseTimingGuard<'_> {
     fn drop(&mut self) {
         if let Some((start_time, start_rss, ref message)) = self.start_and_message {
             let end_rss = get_resident_set_size();
-            print_time_passes_entry(&message[..], start_time.elapsed(), start_rss, end_rss);
+            print_time_passes_entry(&message, start_time.elapsed(), start_rss, end_rss);
         }
     }
 }
diff --git a/compiler/rustc_data_structures/src/small_c_str.rs b/compiler/rustc_data_structures/src/small_c_str.rs
index 4a089398ce6..33e72914e19 100644
--- a/compiler/rustc_data_structures/src/small_c_str.rs
+++ b/compiler/rustc_data_structures/src/small_c_str.rs
@@ -46,7 +46,7 @@ impl SmallCStr {
 
     #[inline]
     pub fn as_c_str(&self) -> &ffi::CStr {
-        unsafe { ffi::CStr::from_bytes_with_nul_unchecked(&self.data[..]) }
+        unsafe { ffi::CStr::from_bytes_with_nul_unchecked(&self.data) }
     }
 
     #[inline]