Fix warnings on stable Rust

Cargo.toml

@@ -77,7 +77,7 @@ required-features = ["abi-7-12"]
 
 [[example]]
 name = "notify_inval_inode"
-required-features = ["abi-7-12"]
+required-features = ["abi-7-15"]
 
 [[example]]
 name = "ioctl"

examples/simple.rs

@@ -1098,6 +1098,10 @@ impl Filesystem for SimpleFS {
         flags: u32,
         reply: ReplyEmpty,
     ) {
+        debug!(
+            "rename() called with: source {parent:?} {name:?}, \
+            destination {new_parent:?} {new_name:?}, flags {flags:#b}",
+        );
         let mut inode_attrs = match self.lookup_name(parent, name) {
             Ok(attrs) => attrs,
             Err(error_code) => {
@@ -1922,8 +1926,7 @@ fn as_file_kind(mut mode: u32) -> FileKind {
 }
 
 fn get_groups(pid: u32) -> Vec<u32> {
-    #[cfg(not(target_os = "macos"))]
-    {
+    if cfg!(not(target_os = "macos")) {
         let path = format!("/proc/{pid}/task/{pid}/status");
         let file = File::open(path).unwrap();
         for line in BufReader::new(file).lines() {

src/request.rs

@@ -615,9 +615,9 @@ impl<'a> Request<'a> {
                 se.filesystem.setvolname(self, x.name(), self.reply());
             }
             #[cfg(target_os = "macos")]
-            ll::Operation::GetXTimes(_) => {
+            ll::Operation::GetXTimes(x) => {
                 se.filesystem
-                    .getxtimes(self, self.request.nodeid().into(), self.reply());
+                    .getxtimes(self, x.nodeid().into(), self.reply());
             }
             #[cfg(target_os = "macos")]
             ll::Operation::Exchange(x) => {

tests/integration_tests.rs

@@ -1,3 +1,6 @@
+// No integration tests for non-Linux targets, so turn off the module for now.
+#![cfg(target_os = "linux")]
+
 use fuser::{Filesystem, Session};
 use std::rc::Rc;
 use std::thread;
@@ -7,8 +10,10 @@ use tempfile::TempDir;
 #[test]
 #[cfg(target_os = "linux")]
 fn unmount_no_send() {
-    // Rc to make this !Send
-    struct NoSendFS(Rc<()>);
+    struct NoSendFS(
+        // Rc to make this !Send
+        #[allow(dead_code)] Rc<()>,
+    );
 
     impl Filesystem for NoSendFS {}