diff --git a/content-addressed-cache/src/synchronizer.rs b/content-addressed-cache/src/synchronizer.rs
index f60ef907..97b80e6b 100644
--- a/content-addressed-cache/src/synchronizer.rs
+++ b/content-addressed-cache/src/synchronizer.rs
@@ -300,7 +300,7 @@ impl CacheSynchronizer for GitBackedCacheSynchronizer {
             &vec_of_prev_commit_references[..],
         )?;
 
-        let refspecs = vec![refspec_fmt(&self.namespace, &keyset_id)];
+        let refspecs = vec![refspec_fmt(&self.namespace, keyset_id)];
 
         self.repo
             .reference(
@@ -593,7 +593,7 @@ mod tests {
 
     #[test]
     pub fn refspec_formatting() {
-        assert_eq!(refspec_fmt("cache", &keyset_id_1()), String::from("+refs/tags/cache/abcd1abcd1abcd1abcd100000000000000000000:refs/tags/cache/abcd1abcd1abcd1abcd100000000000000000000"));
+        assert_eq!(refspec_fmt("cache", keyset_id_1()), String::from("+refs/tags/cache/abcd1abcd1abcd1abcd100000000000000000000:refs/tags/cache/abcd1abcd1abcd1abcd100000000000000000000"));
         assert_eq!(
             refspec_fmt("cache", "foo"),
             String::from("+refs/tags/cache/foo:refs/tags/cache/foo")
@@ -603,7 +603,7 @@ mod tests {
     #[test]
     pub fn tag_formatting() {
         assert_eq!(
-            tag_fmt("cache", &keyset_id_1()),
+            tag_fmt("cache", keyset_id_1()),
             String::from("refs/tags/cache/abcd1abcd1abcd1abcd100000000000000000000"),
         );
         assert_eq!(tag_fmt("cache", "foo"), String::from("refs/tags/cache/foo"));
diff --git a/focus/internals/src/lib/model/persistence.rs b/focus/internals/src/lib/model/persistence.rs
index c8a497a9..9d9125c5 100644
--- a/focus/internals/src/lib/model/persistence.rs
+++ b/focus/internals/src/lib/model/persistence.rs
@@ -138,7 +138,7 @@ impl<T: Default + DeserializeOwned + Serialize> FileBackedCollection<T> {
         let path = self.make_path(name);
         debug!(?path, %name, "Insert");
         self.underlying.insert(name.to_owned(), entity.clone());
-        store_model(&path.as_path(), entity)
+        store_model(path.as_path(), entity)
     }
 
     /// Remove an entity by name from the `underlying` cache and erase it from disk.
@@ -179,7 +179,7 @@ impl<T: Default + DeserializeOwned + Serialize> FileBackedCollection<T> {
     {
         for (name, entity) in self.underlying.iter() {
             let path = self.make_path(name);
-            store_model(&path.as_path(), entity)
+            store_model(path.as_path(), entity)
                 .with_context(|| format!("Storing entity to {}", path.display()))?
         }
 
@@ -198,7 +198,7 @@ impl<T: Default + DeserializeOwned + Serialize> FileBackedCollection<T> {
             serde_json::to_string(entity)?,
             path.display()
         );
-        store_model(&path.as_path(), entity)
+        store_model(path.as_path(), entity)
             .with_context(|| format!("Storing entity to {}", path.display()))
     }
 }
@@ -226,8 +226,8 @@ mod tests {
         focus_testing::init_logging();
 
         let dir = tempfile::tempdir()?;
-        let mut collection = make_collection(&dir.path())?;
-        let mut alternate_collection = make_collection(&dir.path())?;
+        let mut collection = make_collection(dir.path())?;
+        let mut alternate_collection = make_collection(dir.path())?;
 
         let name = "jeff";
         collection.insert(
@@ -259,7 +259,7 @@ mod tests {
         let dir = tempfile::tempdir()?;
         let name = "lebowski";
         {
-            let mut collection = make_collection(&dir.path())?;
+            let mut collection = make_collection(dir.path())?;
 
             collection.insert(
                 name,
@@ -287,7 +287,7 @@ mod tests {
         }
 
         {
-            let collection = make_collection(&dir.path())?;
+            let collection = make_collection(dir.path())?;
             let (actual_name, entity) = collection.underlying.iter().next().unwrap();
             assert_eq!(actual_name, name);
             assert_eq!(entity.name, "Maude Lebowski");
@@ -301,7 +301,7 @@ mod tests {
         focus_testing::init_logging();
         let dir = tempfile::tempdir()?;
         {
-            let mut collection = make_collection(&dir.path())?;
+            let mut collection = make_collection(dir.path())?;
             {
                 collection.underlying.insert(
                     String::from("foo"),
@@ -321,7 +321,7 @@ mod tests {
         }
 
         {
-            let collection = make_collection(&dir.path())?;
+            let collection = make_collection(dir.path())?;
             assert!(collection.underlying.contains_key("foo"));
             assert!(collection.underlying.contains_key("bar"));
         }
diff --git a/focus/internals/src/lib/model/repo.rs b/focus/internals/src/lib/model/repo.rs
index fcf10e6e..952e16c2 100644
--- a/focus/internals/src/lib/model/repo.rs
+++ b/focus/internals/src/lib/model/repo.rs
@@ -695,7 +695,7 @@ pub struct Repo {
 
 impl Repo {
     pub fn open(path: &Path, app: Arc<App>) -> Result<Self> {
-        let repo = git2::Repository::open(&path)
+        let repo = git2::Repository::open(path)
             .with_context(|| format!("Opening repo {}", path.display()))
             .context("Failed to open repo")?;
         if repo.is_bare() {
diff --git a/focus/internals/src/lib/project_cache/local_cache_backend.rs b/focus/internals/src/lib/project_cache/local_cache_backend.rs
index 2aba3a62..6211f061 100644
--- a/focus/internals/src/lib/project_cache/local_cache_backend.rs
+++ b/focus/internals/src/lib/project_cache/local_cache_backend.rs
@@ -42,7 +42,7 @@ impl LocalCacheBackend {
 impl ProjectCacheBackend for LocalCacheBackend {
     fn load_model(&self, url: Url) -> Result<Vec<u8>> {
         let key = url.path();
-        if let Ok(Some(repr)) = self.database.borrow().get(&key) {
+        if let Ok(Some(repr)) = self.database.borrow().get(key) {
             debug!(?key, "GET: Found");
             Ok(repr)
         } else {
@@ -55,7 +55,7 @@ impl ProjectCacheBackend for LocalCacheBackend {
         let key = url.path();
         debug!(?key, "PUT");
         self.database
-            .put(&key, value)
+            .put(key, value)
             .with_context(|| format!("Writing key '{}' failed", &key))
     }
 
diff --git a/focus/internals/src/lib/project_cache/remote.rs b/focus/internals/src/lib/project_cache/remote.rs
index 8e25db1a..f2a13008 100644
--- a/focus/internals/src/lib/project_cache/remote.rs
+++ b/focus/internals/src/lib/project_cache/remote.rs
@@ -36,7 +36,7 @@ fn manifest_path(backend: &dyn ProjectCacheBackend, build_graph_hash: &Vec<u8>)
     let path = format!(
         "{}/{}.manifest_v{}.json.gz",
         url.path(),
-        hex::encode(&build_graph_hash).as_str(),
+        hex::encode(build_graph_hash).as_str(),
         PROJECT_CACHE_VERSION,
     );
     url.set_path(&path);
@@ -53,7 +53,7 @@ fn export_path(
     let path = format!(
         "{}/{}_{}_{}.export_v{}.json.gz",
         url.path(),
-        hex::encode(&build_graph_hash).as_str(),
+        hex::encode(build_graph_hash).as_str(),
         shard_index + 1,
         shard_count,
         PROJECT_CACHE_VERSION,
diff --git a/focus/operations/src/clone.rs b/focus/operations/src/clone.rs
index dcc152d0..590651b2 100644
--- a/focus/operations/src/clone.rs
+++ b/focus/operations/src/clone.rs
@@ -29,7 +29,7 @@ use tracing::{debug, error, info, info_span, warn};
 use url::Url;
 
 pub fn run_clone(mut clone_builder: CloneBuilder, app: Arc<App>) -> Result<()> {
-    (&mut clone_builder).add_clone_args(vec!["--progress"]);
+    clone_builder.add_clone_args(vec!["--progress"]);
     let (mut cmd, scmd) = clone_builder.build(app)?;
 
     scmd.ensure_success_or_log(&mut cmd, SandboxCommandOutput::Stderr)
@@ -487,7 +487,7 @@ fn clone_local(
     }
 
     let dense_repo = Repository::open(&dense_repo_path).context("Opening dense repo")?;
-    let sparse_repo = Repository::open(&sparse_repo_path).context("Opening sparse repo")?;
+    let sparse_repo = Repository::open(sparse_repo_path).context("Opening sparse repo")?;
 
     if copy_branches {
         let span = info_span!("Copying branches");
@@ -868,7 +868,7 @@ fn set_up_hooks(sparse_repo: &Path) -> Result<()> {
 fn fetch_default_remote(sparse_repo: &Path, app: Arc<App>) -> Result<()> {
     let (mut cmd, scmd) = git_helper::git_command(app)?;
     let _ = scmd.ensure_success_or_log(
-        cmd.current_dir(&sparse_repo).arg("fetch").arg("origin"),
+        cmd.current_dir(sparse_repo).arg("fetch").arg("origin"),
         SandboxCommandOutput::Stderr,
     )?;
 
@@ -1280,7 +1280,7 @@ mod twttr_test {
                 .map(|m| {
                     m.unwrap()
                         .path()
-                        .strip_prefix(&outlining_tree_path)
+                        .strip_prefix(outlining_tree_path)
                         .unwrap()
                         .to_owned()
                 })
@@ -1308,7 +1308,7 @@ mod twttr_test {
                 .map(|m| {
                     m.unwrap()
                         .path()
-                        .strip_prefix(&working_tree_path)
+                        .strip_prefix(working_tree_path)
                         .unwrap()
                         .to_owned()
                 })
diff --git a/focus/operations/src/detect_build_graph_changes.rs b/focus/operations/src/detect_build_graph_changes.rs
index 4bd4071e..aa62214b 100644
--- a/focus/operations/src/detect_build_graph_changes.rs
+++ b/focus/operations/src/detect_build_graph_changes.rs
@@ -37,7 +37,7 @@ fn find_committed_changes(app: Arc<App>, repo_path: &Path) -> Result<Vec<PathBuf
 
     let revspec = format!("{}..HEAD", &sync_state_oid);
     let output =
-        git_helper::run_consuming_stdout(repo_path, &["diff", "--name-only", &revspec], app)?;
+        git_helper::run_consuming_stdout(repo_path, ["diff", "--name-only", &revspec], app)?;
     let mut build_involved_changed_paths = Vec::<PathBuf>::new();
     for line in output.lines() {
         let parsed = PathBuf::from(line);
@@ -51,7 +51,7 @@ fn find_committed_changes(app: Arc<App>, repo_path: &Path) -> Result<Vec<PathBuf
 
 fn find_uncommitted_changes(app: Arc<App>, repo: &Path) -> Result<Vec<PathBuf>> {
     let output =
-        git_helper::run_consuming_stdout(repo, &["status", "--porcelain", "--no-renames"], app)?;
+        git_helper::run_consuming_stdout(repo, ["status", "--porcelain", "--no-renames"], app)?;
     let mut build_involved_changed_paths = Vec::<PathBuf>::new();
     for line in output.lines() {
         let mut tokens = line.split_ascii_whitespace().take(2);
diff --git a/focus/operations/src/maintenance/mod.rs b/focus/operations/src/maintenance/mod.rs
index d037c5ab..9522bbb7 100644
--- a/focus/operations/src/maintenance/mod.rs
+++ b/focus/operations/src/maintenance/mod.rs
@@ -584,7 +584,7 @@ mod tests {
 
     fn assert_repo_defaults_set(config: &git2::Config) {
         for (k, v) in CONFIG_DEFAULTS.iter() {
-            let val = config.get_string(*k).unwrap();
+            let val = config.get_string(k).unwrap();
             assert_eq!(
                 val, *v,
                 "values for key {} were not equal: {} != {}",
diff --git a/focus/operations/src/pull.rs b/focus/operations/src/pull.rs
index 9661c6f2..74784ef6 100644
--- a/focus/operations/src/pull.rs
+++ b/focus/operations/src/pull.rs
@@ -151,14 +151,14 @@ pub(crate) mod testing {
         // Create `refs/focus/sync`
         let _ = git_helper::run_consuming_stdout(
             repo_dir,
-            &["update-ref", "refs/focus/sync", &head],
+            ["update-ref", "refs/focus/sync", &head],
             app.clone(),
         )?;
 
         // Create a default prefetch ref
         let _ = git_helper::run_consuming_stdout(
             repo_dir,
-            &["update-ref", "refs/prefetch/remotes/origin/master", &head],
+            ["update-ref", "refs/prefetch/remotes/origin/master", &head],
             app.clone(),
         )?;
 
@@ -168,7 +168,7 @@ pub(crate) mod testing {
         // Create a default remote ref
         let _ = git_helper::run_consuming_stdout(
             repo_dir,
-            &["update-ref", "refs/remotes/origin/master", &head],
+            ["update-ref", "refs/remotes/origin/master", &head],
             app.clone(),
         )?;
 
@@ -185,7 +185,7 @@ pub(crate) mod testing {
         // Update prefetch default to new commit
         let _ = git_helper::run_consuming_stdout(
             repo_dir,
-            &[
+            [
                 "update-ref",
                 "refs/prefetch/remotes/origin/master",
                 &new_commit,
@@ -194,7 +194,7 @@ pub(crate) mod testing {
         )?;
 
         // Switch back to `main` branch
-        let _ = git_helper::run_consuming_stdout(repo_dir, &["checkout", "main"], app.clone())?;
+        let _ = git_helper::run_consuming_stdout(repo_dir, ["checkout", "main"], app.clone())?;
 
         // Since focus/sync still points to `main` HEAD, merge base validation should still fail
         assert!(validate_merge_base(app.clone(), repo_dir).is_err());
@@ -202,7 +202,7 @@ pub(crate) mod testing {
         // Update focus/sync to new commit
         let _ = git_helper::run_consuming_stdout(
             repo_dir,
-            &["update-ref", "refs/focus/sync", &new_commit],
+            ["update-ref", "refs/focus/sync", &new_commit],
             app.clone(),
         )?;
 
diff --git a/focus/operations/src/testing/integration.rs b/focus/operations/src/testing/integration.rs
index 7fd9017d..58ed9968 100644
--- a/focus/operations/src/testing/integration.rs
+++ b/focus/operations/src/testing/integration.rs
@@ -171,7 +171,7 @@ impl RepoPairFixture {
             .command()
             .arg("fetch")
             .arg(remote_name)
-            .current_dir(&path)
+            .current_dir(path)
             .assert()
             .success();
         let fetch_head_path = path.join(".git").join("FETCH_HEAD");
@@ -195,7 +195,7 @@ impl RepoPairFixture {
             .arg("pull")
             .arg(remote_name)
             .arg(branch)
-            .current_dir(&path)
+            .current_dir(path)
             .assert()
             .success();
 
diff --git a/focus/testing/src/scratch_git_repo.rs b/focus/testing/src/scratch_git_repo.rs
index 83d8ebb4..499bf62c 100644
--- a/focus/testing/src/scratch_git_repo.rs
+++ b/focus/testing/src/scratch_git_repo.rs
@@ -86,7 +86,7 @@ impl ScratchGitRepo {
             .arg("add")
             .arg("--")
             .arg(".")
-            .current_dir(&destination_path)
+            .current_dir(destination_path)
             .assert()
             .success();
 
@@ -95,7 +95,7 @@ impl ScratchGitRepo {
             .arg("commit")
             .arg("-m")
             .arg("Initial import")
-            .current_dir(&destination_path)
+            .current_dir(destination_path)
             .assert()
             .success();
 
@@ -227,7 +227,7 @@ impl ScratchGitRepo {
         qualified_origin.push(origin.as_os_str());
         git_binary
             .command()
-            .args(&[
+            .args([
                 OsStr::new("clone"),
                 &qualified_origin,
                 destination.as_os_str(),
diff --git a/focus/tracing/src/git_trace2.rs b/focus/tracing/src/git_trace2.rs
index 31c58919..26104b5f 100644
--- a/focus/tracing/src/git_trace2.rs
+++ b/focus/tracing/src/git_trace2.rs
@@ -235,7 +235,7 @@ impl Events {
 
         let mut result: Vec<Event> = Vec::new();
 
-        let bytes = std::fs::read(&path)?;
+        let bytes = std::fs::read(path)?;
         debug!("parsing: {:?}", &path);
         for line in BufReader::new(bytes.as_slice()).lines() {
             let s = line?;
@@ -664,7 +664,7 @@ mod tests {
     #[test]
     fn test_parse_examples() -> Result<()> {
         for (k, v) in data::DATA.iter() {
-            let xyz: serde_json::Result<Event> = serde_json::from_str(*v);
+            let xyz: serde_json::Result<Event> = serde_json::from_str(v);
             if let Err(e) = xyz {
                 println!("failure: {}, {:?}", *k, e);
                 bail!(e)