--- rust-calloop-0.10-0.10.6.orig/Cargo.toml
+++ rust-calloop-0.10-0.10.6/Cargo.toml
@@ -56,7 +56,7 @@ default-features = false
 version = "0.4"
 
 [dependencies.nix]
-version = "0.29"
+version = "0.30"
 features = [
     "event",
     "fs",
--- rust-calloop-0.10-0.10.6.orig/src/io.rs
+++ rust-calloop-0.10-0.10.6/src/io.rs
@@ -8,6 +8,7 @@
 
 use std::cell::RefCell;
 use std::os::unix::io::{AsRawFd, RawFd};
+use std::os::fd::BorrowedFd;
 use std::pin::Pin;
 use std::rc::Rc;
 use std::task::{Context, Poll as TaskPoll, Waker};
@@ -49,9 +50,9 @@ impl<'l, F: AsRawFd> Async<'l, F> {
     pub(crate) fn new<Data>(inner: Rc<LoopInner<'l, Data>>, fd: F) -> crate::Result<Async<'l, F>> {
         let rawfd = fd.as_raw_fd();
         // set non-blocking
-        let old_flags = fcntl(rawfd, FcntlArg::F_GETFL)?;
+        let old_flags = fcntl(unsafe { BorrowedFd::borrow_raw(rawfd) }, FcntlArg::F_GETFL)?;
         let old_flags = unsafe { OFlag::from_bits_retain(old_flags) };
-        fcntl(rawfd, FcntlArg::F_SETFL(old_flags | OFlag::O_NONBLOCK))?;
+        fcntl(unsafe { BorrowedFd::borrow_raw(rawfd) }, FcntlArg::F_SETFL(old_flags | OFlag::O_NONBLOCK))?;
         // register in the loop
         let dispatcher = Rc::new(RefCell::new(IoDispatcher {
             fd: rawfd,
@@ -157,7 +158,7 @@ impl<'l, F: AsRawFd> Drop for Async<'l,
         self.inner.kill(&self.dispatcher);
         // restore flags
         let _ = fcntl(
-            self.dispatcher.borrow().fd,
+            unsafe { BorrowedFd::borrow_raw(self.dispatcher.borrow().fd) },
             FcntlArg::F_SETFL(self.old_flags),
         );
     }
--- rust-calloop-0.10-0.10.6.orig/src/sources/ping/eventfd.rs
+++ rust-calloop-0.10-0.10.6/src/sources/ping/eventfd.rs
@@ -84,7 +84,7 @@ fn drain_ping(fd: RawFd) -> std::io::Res
     const NBYTES: usize = 8;
     let mut buf = [0u8; NBYTES];
 
-    match read(fd, &mut buf) {
+    match read(unsafe { BorrowedFd::borrow_raw(fd) }, &mut buf) {
         // Reading from an eventfd should only ever produce 8 bytes. No looping
         // is required.
         Ok(NBYTES) => Ok(u64::from_ne_bytes(buf)),