bindings: rust: rename {event,settings}_clone to try_clone

What is getting cloned is already clear from the type. This also aligns
a bit better with similar methods from the `std` crate [1].

[1] https://doc.rust-lang.org/std/index.html?search=try_clone

Link: https://lore.kernel.org/r/CVUKC1HXG1P8.13XIUCCXN95F0@ablu-work
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Erik Schilling <erik.schilling@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

bindings/rust/libgpiod/examples/buffered_event_lifetimes.rs

@@ -34,7 +34,7 @@ fn main() -> libgpiod::Result<()> {
         let event = events.next().unwrap()?;
 
         // This will out live `event` and the next read_edge_events().
-        let cloned_event = libgpiod::request::Event::event_clone(event)?;
+        let cloned_event = libgpiod::request::Event::try_clone(event)?;
 
         let events = request.read_edge_events(&mut buffer)?;
         for event in events {

bindings/rust/libgpiod/src/edge_event.rs

@@ -29,7 +29,8 @@ pub struct Event(*mut gpiod::gpiod_edge_event);
 unsafe impl Send for Event {}
 
 impl Event {
-    pub fn event_clone(event: &Event) -> Result<Event> {
+    /// Makes a copy of the event object.
+    pub fn try_clone(event: &Event) -> Result<Event> {
         // SAFETY: `gpiod_edge_event` is guaranteed to be valid here.
         let event = unsafe { gpiod::gpiod_edge_event_copy(event.0) };
         if event.is_null() {

bindings/rust/libgpiod/src/line_settings.rs

@@ -56,8 +56,8 @@ impl Settings {
         unsafe { gpiod::gpiod_line_settings_reset(self.settings) }
     }
 
-    /// Makes copy of the settings object.
-    pub fn settings_clone(&self) -> Result<Self> {
+    /// Makes a copy of the settings object.
+    pub fn try_clone(&self) -> Result<Self> {
         // SAFETY: `gpiod_line_settings` is guaranteed to be valid here.
         let settings = unsafe { gpiod::gpiod_line_settings_copy(self.settings) };
         if settings.is_null() {

bindings/rust/libgpiod/tests/line_request.rs

@@ -272,7 +272,7 @@ mod line_request {
             for offset in offsets {
                 lsettings.set_debounce_period(Duration::from_millis((100 + offset).into()));
                 lconfig
-                    .add_line_settings(&[offset as Offset], lsettings.settings_clone().unwrap())
+                    .add_line_settings(&[offset as Offset], lsettings.try_clone().unwrap())
                     .unwrap();
             }