No warnings on non-unstable

Author: leo60228

src/net/driver/mod.rs

@@ -98,6 +98,7 @@ impl Reactor {
     }
 
     /// Deregisters an I/O event source associated with a file descriptor.
+    #[cfg(feature = "unstable")]
     pub fn deregister_fd(&self, source: &dyn Evented, fd: c_int) -> io::Result<()> {
         // Deregister the I/O object from the mio instance.
         self.poller.deregister(source)?;

src/os/unix/io.rs

@@ -1,12 +1,17 @@
 //! Unix-specific I/O extensions.
 
-use crate::task::Context;
-use crate::io;
 
 cfg_not_docs! {
     pub use std::os::unix::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
+
+    #[cfg(feature = "unstable")]
     use mio::unix::EventedFd;
+    #[cfg(feature = "unstable")]
     use crate::net::driver::REACTOR;
+    #[cfg(feature = "unstable")]
+    use crate::task::Context;
+    #[cfg(feature = "unstable")]
+    use crate::io;
 
     /// Registers an I/O handle so that the current task gets woken up when it becomes ready.
     #[cfg(feature = "unstable")]