diff --git a/lib/src/conflicts.rs b/lib/src/conflicts.rs
index 1cf18c6c6..c97c30303 100644
--- a/lib/src/conflicts.rs
+++ b/lib/src/conflicts.rs
@@ -164,9 +164,9 @@ pub fn materialize_conflict(
         .collect_vec();
     let removed_slices = removed_content
         .iter()
-        .map(|vec| vec.as_slice())
+        .map(Vec::as_slice)
         .collect_vec();
-    let added_slices = added_content.iter().map(|vec| vec.as_slice()).collect_vec();
+    let added_slices = added_content.iter().map(Vec::as_slice).collect_vec();
 
     let merge_result = files::merge(&removed_slices, &added_slices);
     match merge_result {
diff --git a/lib/src/git_backend.rs b/lib/src/git_backend.rs
index 7ee12c408..78004be36 100644
--- a/lib/src/git_backend.rs
+++ b/lib/src/git_backend.rs
@@ -222,7 +222,7 @@ impl Backend for GitBackend {
         let mut bytes = Vec::new();
         contents.read_to_end(&mut bytes).unwrap();
         let locked_repo = self.repo.lock().unwrap();
-        let oid = locked_repo.blob(bytes.as_slice()).unwrap();
+        let oid = locked_repo.blob(&bytes).unwrap();
         Ok(FileId::new(oid.as_bytes().to_vec()))
     }
 
@@ -428,7 +428,7 @@ impl Backend for GitBackend {
             .unwrap()
             .start_modification();
         if let Some(existing_extras) = mut_table.get_value(git_id.as_bytes()) {
-            if existing_extras != extras.as_slice() {
+            if existing_extras != &extras {
                 return Err(BackendError::Other(format!(
                     "Git commit '{}' already exists with different associated non-Git meta-data",
                     id.hex()
diff --git a/lib/src/stacked_table.rs b/lib/src/stacked_table.rs
index 7fe571051..b6f226c30 100644
--- a/lib/src/stacked_table.rs
+++ b/lib/src/stacked_table.rs
@@ -177,7 +177,7 @@ impl<'table> ReadonlyTableIndexEntry<'table> {
     fn new(table: &'table ReadonlyTable, pos: usize) -> Self {
         let entry_size = ReadonlyTableIndexEntry::size(table.key_size);
         let offset = entry_size * pos;
-        let data = &table.index.as_slice()[offset..offset + entry_size];
+        let data = &table.index[offset..offset + entry_size];
         ReadonlyTableIndexEntry { data }
     }
 
diff --git a/lib/tests/test_merge_trees.rs b/lib/tests/test_merge_trees.rs
index 393c0773e..05076afc8 100644
--- a/lib/tests/test_merge_trees.rs
+++ b/lib/tests/test_merge_trees.rs
@@ -630,7 +630,7 @@ fn test_simplify_conflict_after_resolving_parent(use_git: bool) {
             executable: false,
         }) => {
             assert_eq!(
-                testutils::read_file(repo.store(), &path, &id).as_slice(),
+                testutils::read_file(repo.store(), &path, &id),
                 b"AbC\ndef\nGhi\n"
             );
         }
diff --git a/src/formatter.rs b/src/formatter.rs
index 9a8f9ae76..31a2f0047 100644
--- a/src/formatter.rs
+++ b/src/formatter.rs
@@ -31,7 +31,7 @@ pub trait Formatter: Write {
     fn write_from_reader(&mut self, reader: &mut dyn Read) -> io::Result<()> {
         let mut buffer = vec![];
         reader.read_to_end(&mut buffer).unwrap();
-        self.write_all(buffer.as_slice())
+        self.write_all(&buffer)
     }
 
     fn add_label(&mut self, label: String) -> io::Result<()>;