--- rust-wayland-client-0.29-0.29.5.orig/Cargo.toml
+++ rust-wayland-client-0.29-0.29.5/Cargo.toml
@@ -39,7 +39,7 @@ version = "1.0"
 version = "0.2"
 
 [dependencies.nix]
-version = "0.29"
+version = "0.30"
 features = [
     "fs",
     "poll",
--- rust-wayland-client-0.29-0.29.5.orig/src/display.rs
+++ rust-wayland-client-0.29-0.29.5/src/display.rs
@@ -3,6 +3,7 @@ use std::ffi::OsString;
 use std::io;
 use std::ops::Deref;
 use std::os::unix::io::{IntoRawFd, RawFd};
+use std::os::fd::BorrowedFd;
 use std::os::unix::net::UnixStream;
 use std::path::PathBuf;
 use std::sync::Arc;
@@ -127,10 +128,10 @@ impl Display {
             // remove the variable so any child processes don't see it
             env::remove_var("WAYLAND_SOCKET");
             // set the CLOEXEC flag on this FD
-            let flags = fcntl::fcntl(fd, fcntl::FcntlArg::F_GETFD);
+            let flags = fcntl::fcntl(unsafe { BorrowedFd::borrow_raw(fd) }, fcntl::FcntlArg::F_GETFD);
             let result = flags
                 .map(|f| fcntl::FdFlag::from_bits(f).unwrap() | fcntl::FdFlag::FD_CLOEXEC)
-                .and_then(|f| fcntl::fcntl(fd, fcntl::FcntlArg::F_SETFD(f)));
+                .and_then(|f| fcntl::fcntl(unsafe { BorrowedFd::borrow_raw(fd) }, fcntl::FcntlArg::F_SETFD(f)));
             match result {
                 Ok(_) => {
                     // setting the O_CLOEXEC worked