kmc-solid: Adapt to a recent change in the IntoInner impl of SocketAddr

`(x: SocketAddr).into_inner()` evaluates to `(SocketAddrCRepr,
socklen_t)` instead of `(*const sockaddr, socklen_t)` as of
commit 55e23db.

Author: kawadakk

std/src/sys/solid/net.rs

@@ -230,8 +230,8 @@ impl Socket {
     pub fn connect_timeout(&self, addr: &SocketAddr, timeout: Duration) -> io::Result<()> {
         self.set_nonblocking(true)?;
         let r = unsafe {
-            let (addrp, len) = addr.into_inner();
-            cvt(netc::connect(self.0.raw(), addrp, len))
+            let (addr, len) = addr.into_inner();
+            cvt(netc::connect(self.0.raw(), addr.as_ptr(), len))
         };
         self.set_nonblocking(false)?;