[PATCH v1 proxmox-backup 6/8] tree-wide: remove redundant ref keyword in pattern matches

[Robert Obkircher <r.obkircher@proxmox.com>]

These are no longer necessary and do not compile in the 2024 edition.

Signed-off-by: Robert Obkircher <r.obkircher@proxmox.com>
---
 pbs-client/src/catalog_shell.rs |  2 +-
 pbs-client/src/pxar/extract.rs  |  2 +-
 src/api2/config/sync.rs         |  2 +-
 src/tape/inventory.rs           | 10 ++++------
 src/tape/media_pool.rs          |  2 +-
 src/tape/media_set.rs           |  2 +-
 6 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/pbs-client/src/catalog_shell.rs b/pbs-client/src/catalog_shell.rs
index 3a923648b..e74725af8 100644
--- a/pbs-client/src/catalog_shell.rs
+++ b/pbs-client/src/catalog_shell.rs
@@ -488,7 +488,7 @@ impl Shell {
         accessor: &Accessor,
         follow_symlinks: &mut Option<usize>,
     ) -> Result<(), Error> {
-        if let Some(ref mut symlink_count) = follow_symlinks {
+        if let Some(symlink_count) = follow_symlinks {
             *symlink_count += 1;
             if *symlink_count > MAX_SYMLINK_COUNT {
                 bail!("too many levels of symbolic links");
diff --git a/pbs-client/src/pxar/extract.rs b/pbs-client/src/pxar/extract.rs
index 2ef3657a6..a1d4eb7c2 100644
--- a/pbs-client/src/pxar/extract.rs
+++ b/pbs-client/src/pxar/extract.rs
@@ -147,7 +147,7 @@ where
                 let mut prelude_file = open_options
                     .open(path)
                     .with_context(|| format!("error creating prelude file '{path:?}'"))?;
-                if let pxar::EntryKind::Prelude(ref prelude) = entry.kind() {
+                if let pxar::EntryKind::Prelude(prelude) = entry.kind() {
                     prelude_file.write_all(prelude.as_ref())?;
                 } else {
                     info!("unexpected entry kind for prelude");
diff --git a/src/api2/config/sync.rs b/src/api2/config/sync.rs
index beed6e7e3..4d1a19c9e 100644
--- a/src/api2/config/sync.rs
+++ b/src/api2/config/sync.rs
@@ -362,7 +362,7 @@ fn keep_previous_key_as_associated(
 ) {
     if let Some(prev) = current_active {
         match associated_keys {
-            Some(ref mut keys) => {
+            Some(keys) => {
                 if !keys.contains(prev) {
                     keys.push(prev.clone());
                 }
diff --git a/src/tape/inventory.rs b/src/tape/inventory.rs
index 12cca02c6..1ce4570d2 100644
--- a/src/tape/inventory.rs
+++ b/src/tape/inventory.rs
@@ -532,12 +532,10 @@ impl Inventory {
                     return i64::MAX;
                 }
                 MediaSetPolicy::AlwaysCreate => set_start_time,
-                MediaSetPolicy::CreateAt(ref event) => {
-                    match event.compute_next_event(set_start_time) {
-                        Ok(Some(next)) => next,
-                        Ok(None) | Err(_) => return i64::MAX,
-                    }
-                }
+                MediaSetPolicy::CreateAt(event) => match event.compute_next_event(set_start_time) {
+                    Ok(Some(next)) => next,
+                    Ok(None) | Err(_) => return i64::MAX,
+                },
             },
         };
 
diff --git a/src/tape/media_pool.rs b/src/tape/media_pool.rs
index 0cad7ab7d..fdd613d2c 100644
--- a/src/tape/media_pool.rs
+++ b/src/tape/media_pool.rs
@@ -325,7 +325,7 @@ impl MediaPool {
         let mut list = Vec::new();
         for opt_uuid in self.current_media_set.media_list().iter() {
             match opt_uuid {
-                Some(ref uuid) => list.push(uuid),
+                Some(uuid) => list.push(uuid),
                 None => bail!("current_media_list failed - media set is incomplete"),
             }
         }
diff --git a/src/tape/media_set.rs b/src/tape/media_set.rs
index 147fb643b..29de98e9e 100644
--- a/src/tape/media_set.rs
+++ b/src/tape/media_set.rs
@@ -59,7 +59,7 @@ impl MediaSet {
         match self.media_list.last() {
             None => None,
             Some(None) => None,
-            Some(Some(ref last_uuid)) => Some(last_uuid),
+            Some(Some(last_uuid)) => Some(last_uuid),
         }
     }
 
-- 
2.47.3