4 files changed, 14 insertions, 14 deletions
diff --git a/src/sys/aio.rs b/src/sys/aio.rs
index 7868a294..a03caa45 100644
--- a/src/sys/aio.rs
+++ b/src/sys/aio.rs
@@ -513,7 +513,7 @@ impl<'a> AioCb<'a> {
         }
     }
 
-    fn error_unpinned(self: &mut Self) -> Result<()> {
+    fn error_unpinned(&mut self) -> Result<()> {
         let r = unsafe {
             libc::aio_error(&mut self.aiocb.0 as *mut libc::aiocb)
         };
@@ -645,7 +645,7 @@ impl<'a> AioCb<'a> {
         SigEvent::from(&self.aiocb.0.aio_sigevent)
     }
 
-    fn aio_return_unpinned(self: &mut Self) -> Result<isize> {
+    fn aio_return_unpinned(&mut self) -> Result<isize> {
         unsafe {
             let p: *mut libc::aiocb = &mut self.aiocb.0;
             self.in_progress = false;
@@ -838,6 +838,10 @@ unsafe impl<'a> Sync for LioCb<'a> {}
 
 #[cfg(not(any(target_os = "ios", target_os = "macos")))]
 impl<'a> LioCb<'a> {
+    pub fn is_empty(&self) -> bool {
+        self.aiocbs.is_empty()
+    }
+
     /// Return the number of individual [`AioCb`]s contained.
     pub fn len(&self) -> usize {
         self.aiocbs.len()
diff --git a/src/sys/ptrace/bsd.rs b/src/sys/ptrace/bsd.rs
index e85afc76..141dfbc4 100644
--- a/src/sys/ptrace/bsd.rs
+++ b/src/sys/ptrace/bsd.rs
@@ -133,16 +133,14 @@ pub fn kill(pid: Pid) -> Result<()> {
 /// use nix::unistd::Pid;
 /// use nix::sys::signal::Signal;
 /// use nix::sys::wait::*;
-/// fn main() {
-///     // If a process changes state to the stopped state because of a SIGUSR1
-///     // signal, this will step the process forward and forward the user
-///     // signal to the stopped process
-///     match waitpid(Pid::from_raw(-1), None) {
-///         Ok(WaitStatus::Stopped(pid, Signal::SIGUSR1)) => {
-///             let _ = step(pid, Signal::SIGUSR1);
-///         }
-///         _ => {},
+/// // If a process changes state to the stopped state because of a SIGUSR1
+/// // signal, this will step the process forward and forward the user
+/// // signal to the stopped process
+/// match waitpid(Pid::from_raw(-1), None) {
+///     Ok(WaitStatus::Stopped(pid, Signal::SIGUSR1)) => {
+///         let _ = step(pid, Signal::SIGUSR1);
 ///     }
+///     _ => {},
 /// }
 /// ```
 #[cfg(
diff --git a/src/sys/select.rs b/src/sys/select.rs
index 19ae2f1c..5eb64234 100644
--- a/src/sys/select.rs
+++ b/src/sys/select.rs
@@ -50,12 +50,10 @@ impl FdSet {
     ///
     /// ```
     /// # use nix::sys::select::FdSet;
-    /// # fn main() {
     /// let mut set = FdSet::new();
     /// set.insert(4);
     /// set.insert(9);
     /// assert_eq!(set.highest(), Some(9));
-    /// # }
     /// ```
     ///
     /// [`select`]: fn.select.html
diff --git a/src/sys/socket/mod.rs b/src/sys/socket/mod.rs
index e4baeb5d..69070463 100644
--- a/src/sys/socket/mod.rs
+++ b/src/sys/socket/mod.rs
@@ -710,7 +710,7 @@ impl ControlMessageOwned {
             },
             (_, _) => {
                 let sl = slice::from_raw_parts(p, len);
-                let ucmsg = UnknownCmsg(*header, Vec::<u8>::from(&sl[..]));
+                let ucmsg = UnknownCmsg(*header, Vec::<u8>::from(sl));
                 ControlMessageOwned::Unknown(ucmsg)
             }
         }