Fix various warnings

src/win32/init.rs

@@ -2,6 +2,7 @@ use std::sync::atomic::AtomicBool;
 use std::ptr;
 use std::mem;
 use std::os;
+use std::thread;
 use super::callback;
 use super::Window;
 use super::MonitorID;
@@ -39,7 +40,7 @@ pub fn new_window(builder: BuilderAttribs<'static>, builder_sharelists: Option<C
     // GetMessage must be called in the same thread as CreateWindow,
     //  so we create a new thread dedicated to this window.
     // This is the only safe method. Using `nosend` wouldn't work for non-native runtime.
-    ::std::thread::Thread::spawn(move || {
+    thread::spawn(move || {
         unsafe {
             // sending
             match init(title, builder, builder_sharelists) {
@@ -151,7 +152,7 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>,
         let extra_functions = gl::wgl_extra::Wgl::load_with(|addr| {
             use libc;
 
-            let addr = CString::from_slice(addr.as_bytes());
+            let addr = CString::new(addr.as_bytes()).unwrap();
             let addr = addr.as_ptr();
 
             gl::wgl::GetProcAddress(addr) as *const libc::c_void

src/win32/mod.rs

@@ -191,7 +191,7 @@ impl Window {
 
     /// See the docs in the crate root file.
     pub fn get_proc_address(&self, addr: &str) -> *const () {
-        let addr = CString::from_slice(addr.as_bytes());
+        let addr = CString::new(addr.as_bytes()).unwrap();
         let addr = addr.as_ptr();
 
         unsafe {
@@ -224,7 +224,7 @@ impl Window {
     pub fn set_window_resize_callback(&mut self, _: Option<fn(u32, u32)>) {
     }
 
-    pub fn set_cursor(&self, cursor: MouseCursor) {
+    pub fn set_cursor(&self, _cursor: MouseCursor) {
         unimplemented!()
     }
 
@@ -280,7 +280,6 @@ impl<'a> Iterator for WaitEventsIterator<'a> {
 #[unsafe_destructor]
 impl Drop for Window {
     fn drop(&mut self) {
-        use std::ptr;
         // we don't call MakeCurrent(0, 0) because we are not sure that the context
         // is still the current one
         unsafe { user32::PostMessageW(self.window, winapi::WM_DESTROY, 0, 0); }