Index: calloop-0.10/Cargo.toml
===================================================================
--- calloop-0.10.orig/Cargo.toml
+++ calloop-0.10/Cargo.toml
@@ -56,7 +56,7 @@ default-features = false
 version = "0.4"
 
 [dependencies.nix]
-version = "0.27"
+version = "0.29"
 features = [
     "event",
     "fs",
Index: calloop-0.10/src/loop_logic.rs
===================================================================
--- calloop-0.10.orig/src/loop_logic.rs
+++ calloop-0.10/src/loop_logic.rs
@@ -501,6 +501,7 @@ impl LoopSignal {
 mod tests {
     use std::time::Duration;
     use std::os::fd::IntoRawFd;
+    use std::os::fd::BorrowedFd;
 
     use crate::{
         generic::Generic, ping::*, Dispatcher, Interest, Mode, Poll, PostAction, Readiness,
@@ -788,7 +789,7 @@ mod tests {
         assert!(!dispatched);
 
         // write something, the socket becomes readable
-        write(sock2, &[1, 2, 3]).unwrap();
+        write(unsafe { BorrowedFd::borrow_raw(sock2) }, &[1, 2, 3]).unwrap();
         dispatched = false;
         event_loop
             .dispatch(Duration::ZERO, &mut dispatched)
Index: calloop-0.10/src/sources/ping/eventfd.rs
===================================================================
--- calloop-0.10.orig/src/sources/ping/eventfd.rs
+++ calloop-0.10/src/sources/ping/eventfd.rs
@@ -20,6 +20,7 @@
 
 use std::{os::unix::io::RawFd, sync::Arc};
 use std::os::fd::IntoRawFd;
+use std::os::fd::BorrowedFd;
 
 use nix::sys::eventfd::{eventfd, EfdFlags};
 use nix::unistd::{read, write};
@@ -64,7 +65,7 @@ pub fn make_ping() -> std::io::Result<(P
 #[inline]
 fn send_ping(fd: RawFd, count: u64) -> std::io::Result<()> {
     assert!(count > 0);
-    match write(fd, &count.to_ne_bytes()) {
+    match write(unsafe { BorrowedFd::borrow_raw(fd) }, &count.to_ne_bytes()) {
         // The write succeeded, the ping will wake up the loop.
         Ok(_) => Ok(()),