Remove needless lifetimes

6 files changed, 6 insertions, 6 deletions

diff --git a/src/libstd/sync/mpsc/sync.rs b/src/libstd/sync/mpsc/sync.rs
index 3c4f8e077c9..a9c4c7345c2 100644
--- a/src/libstd/sync/mpsc/sync.rs
+++ b/src/libstd/sync/mpsc/sync.rs
@@ -140,7 +140,7 @@ fn wait_timeout_receiver<'a, 'b, T>(lock: &'a Mutex<State<T>>,
     new_guard
 }
 
-fn abort_selection<'a, T>(guard: &mut MutexGuard<'a , State<T>>) -> bool {
+fn abort_selection<T>(guard: &mut MutexGuard<'_, State<T>>) -> bool {
     match mem::replace(&mut guard.blocker, NoneBlocked) {
         NoneBlocked => true,
         BlockedSender(token) => {
diff --git a/src/libstd/sys/redox/ext/net.rs b/src/libstd/sys/redox/ext/net.rs
index b3ef5f3064c..e25bab4ff61 100644
--- a/src/libstd/sys/redox/ext/net.rs
+++ b/src/libstd/sys/redox/ext/net.rs
@@ -673,7 +673,7 @@ impl UnixListener {
     /// }
     /// ```
     #[stable(feature = "unix_socket_redox", since = "1.29.0")]
-    pub fn incoming<'a>(&'a self) -> Incoming<'a> {
+    pub fn incoming(&self) -> Incoming {
         Incoming { listener: self }
     }
 }
diff --git a/src/libstd/sys/unix/ext/net.rs b/src/libstd/sys/unix/ext/net.rs
index 41090caee84..a9b8bc6a962 100644
--- a/src/libstd/sys/unix/ext/net.rs
+++ b/src/libstd/sys/unix/ext/net.rs
@@ -894,7 +894,7 @@ impl UnixListener {
     /// }
     /// ```
     #[stable(feature = "unix_socket", since = "1.10.0")]
-    pub fn incoming<'a>(&'a self) -> Incoming<'a> {
+    pub fn incoming(&self) -> Incoming<'_> {
         Incoming { listener: self }
     }
 }
diff --git a/src/libstd/sys/windows/mod.rs b/src/libstd/sys/windows/mod.rs
index 1cb55539129..36fb1fb5ff6 100644
--- a/src/libstd/sys/windows/mod.rs
+++ b/src/libstd/sys/windows/mod.rs
@@ -195,7 +195,7 @@ fn wide_char_to_multi_byte(code_page: u32,
     }
 }
 
-pub fn truncate_utf16_at_nul<'a>(v: &'a [u16]) -> &'a [u16] {
+pub fn truncate_utf16_at_nul(v: &[u16]) -> &[u16] {
     match v.iter().position(|c| *c == 0) {
         // don't include the 0
         Some(i) => &v[..i],
diff --git a/src/libstd/sys/windows/path.rs b/src/libstd/sys/windows/path.rs
index f3178a5e9e6..322a17ee43d 100644
--- a/src/libstd/sys/windows/path.rs
+++ b/src/libstd/sys/windows/path.rs
@@ -19,7 +19,7 @@ pub fn is_verbatim_sep(b: u8) -> bool {
     b == b'\\'
 }
 
-pub fn parse_prefix<'a>(path: &'a OsStr) -> Option<Prefix<'a>> {
+pub fn parse_prefix(path: &OsStr) -> Option<Prefix> {
     use crate::path::Prefix::*;
     unsafe {
         // The unsafety here stems from converting between &OsStr and &[u8]
diff --git a/src/libstd/sys_common/io.rs b/src/libstd/sys_common/io.rs
index 44b0963302d..8789abe55c3 100644
--- a/src/libstd/sys_common/io.rs
+++ b/src/libstd/sys_common/io.rs
@@ -16,7 +16,7 @@ pub mod test {
             p.join(path)
         }
 
-        pub fn path<'a>(&'a self) -> &'a Path {
+        pub fn path(&self) -> &Path {
             let TempDir(ref p) = *self;
             p
         }