diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 8ca54733c1..fcb15ea156 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -77,7 +77,7 @@ jobs:
             ${{ runner.os }}-build-${{ env.cache-name }}-
             ${{ runner.os }}-build-
             ${{ runner.os }}-
-      - run: cargo clippy --all -- -D warnings
+      - run: cargo clippy --all-targets --all-features -- -D warnings
 
   cargo_test:
     name: "cargo test"
diff --git a/benches/source_code_locator.rs b/benches/source_code_locator.rs
index 473ea38578..e2e1359e86 100644
--- a/benches/source_code_locator.rs
+++ b/benches/source_code_locator.rs
@@ -1,11 +1,11 @@
+use std::fs;
 use std::path::Path;
 
 use criterion::{black_box, criterion_group, criterion_main, Criterion};
 use ropey::Rope;
-use ruff::fs;
 
 fn criterion_benchmark(c: &mut Criterion) {
-    let contents = fs::read_file(Path::new("resources/test/fixtures/D.py")).unwrap();
+    let contents = fs::read_to_string(Path::new("resources/test/fixtures/D.py")).unwrap();
     c.bench_function("rope", |b| {
         b.iter(|| {
             let rope = Rope::from_str(black_box(&contents));
diff --git a/src/check_lines.rs b/src/check_lines.rs
index b4bd94708a..ba61d36934 100644
--- a/src/check_lines.rs
+++ b/src/check_lines.rs
@@ -283,7 +283,7 @@ mod tests {
                 },
                 &fixer::Mode::Generate,
             );
-            return checks;
+            checks
         };
         assert!(!check_with_max_line_length(6).is_empty());
         assert!(check_with_max_line_length(7).is_empty());
diff --git a/src/linter.rs b/src/linter.rs
index 545116994c..65ef69d03f 100644
--- a/src/linter.rs
+++ b/src/linter.rs
@@ -517,7 +517,7 @@ mod tests {
         let snapshot = format!("{}_{}", check_code.as_ref(), path.to_string_lossy());
         let mut checks = test_path(
             Path::new("./resources/test/fixtures").join(path).as_path(),
-            &settings::Settings::for_rule(check_code.clone()),
+            &settings::Settings::for_rule(check_code),
             &fixer::Mode::Generate,
         )?;
         checks.sort_by_key(|check| check.location);
diff --git a/src/pep8_naming/helpers.rs b/src/pep8_naming/helpers.rs
index 36bf664a7e..f868bb1402 100644
--- a/src/pep8_naming/helpers.rs
+++ b/src/pep8_naming/helpers.rs
@@ -83,7 +83,7 @@ mod tests {
     use crate::pep8_naming::helpers::{is_acronym, is_camelcase, is_mixed_case};
 
     #[test]
-    fn test_is_camelcase() -> () {
+    fn test_is_camelcase() {
         assert!(is_camelcase("Camel"));
         assert!(is_camelcase("CamelCase"));
         assert!(!is_camelcase("camel"));
@@ -93,7 +93,7 @@ mod tests {
     }
 
     #[test]
-    fn test_is_mixed_case() -> () {
+    fn test_is_mixed_case() {
         assert!(is_mixed_case("mixedCase"));
         assert!(is_mixed_case("mixed_Case"));
         assert!(is_mixed_case("_mixed_Case"));
@@ -104,7 +104,7 @@ mod tests {
     }
 
     #[test]
-    fn test_is_acronym() -> () {
+    fn test_is_acronym() {
         assert!(is_acronym("AB", "AB"));
         assert!(is_acronym("AbcDef", "AD"));
         assert!(!is_acronym("AbcDef", "Ad"));
diff --git a/src/python/string.rs b/src/python/string.rs
index 50be2861da..e508102e26 100644
--- a/src/python/string.rs
+++ b/src/python/string.rs
@@ -27,7 +27,7 @@ mod tests {
     use crate::python::string::{is_lower, is_upper};
 
     #[test]
-    fn test_is_lower() -> () {
+    fn test_is_lower() {
         assert!(is_lower("abc"));
         assert!(is_lower("a_b_c"));
         assert!(is_lower("a2c"));
@@ -38,7 +38,7 @@ mod tests {
     }
 
     #[test]
-    fn test_is_upper() -> () {
+    fn test_is_upper() {
         assert!(is_upper("ABC"));
         assert!(is_upper("A_B_C"));
         assert!(is_upper("A2C"));
diff --git a/tests/integration_test.rs b/tests/integration_test.rs
index c2abaa09a9..086fa992be 100644
--- a/tests/integration_test.rs
+++ b/tests/integration_test.rs
@@ -6,7 +6,7 @@ use assert_cmd::{crate_name, Command};
 #[test]
 fn test_stdin_success() -> Result<()> {
     let mut cmd = Command::cargo_bin(crate_name!())?;
-    cmd.args(&["-"]).write_stdin("").assert().success();
+    cmd.args(["-"]).write_stdin("").assert().success();
     Ok(())
 }
 
@@ -14,7 +14,7 @@ fn test_stdin_success() -> Result<()> {
 fn test_stdin_error() -> Result<()> {
     let mut cmd = Command::cargo_bin(crate_name!())?;
     let output = cmd
-        .args(&["-"])
+        .args(["-"])
         .write_stdin("import os\n")
         .assert()
         .failure();
@@ -26,7 +26,7 @@ fn test_stdin_error() -> Result<()> {
 fn test_stdin_filename() -> Result<()> {
     let mut cmd = Command::cargo_bin(crate_name!())?;
     let output = cmd
-        .args(&["-", "--stdin-filename", "F401.py"])
+        .args(["-", "--stdin-filename", "F401.py"])
         .write_stdin("import os\n")
         .assert()
         .failure();
@@ -38,7 +38,7 @@ fn test_stdin_filename() -> Result<()> {
 fn test_stdin_autofix() -> Result<()> {
     let mut cmd = Command::cargo_bin(crate_name!())?;
     let output = cmd
-        .args(&["-", "--fix"])
+        .args(["-", "--fix"])
         .write_stdin("import os\nimport sys\n\nprint(sys.version)\n")
         .assert()
         .success();
@@ -53,7 +53,7 @@ fn test_stdin_autofix() -> Result<()> {
 fn test_stdin_autofix_when_not_fixable_should_still_print_contents() -> Result<()> {
     let mut cmd = Command::cargo_bin(crate_name!())?;
     let output = cmd
-        .args(&["-", "--fix"])
+        .args(["-", "--fix"])
         .write_stdin("import os\nimport sys\n\nif (1, 2):\n     print(sys.version)\n")
         .assert()
         .failure();
@@ -68,7 +68,7 @@ fn test_stdin_autofix_when_not_fixable_should_still_print_contents() -> Result<(
 fn test_stdin_autofix_when_no_issues_should_still_print_contents() -> Result<()> {
     let mut cmd = Command::cargo_bin(crate_name!())?;
     let output = cmd
-        .args(&["-", "--fix"])
+        .args(["-", "--fix"])
         .write_stdin("import sys\n\nprint(sys.version)\n")
         .assert()
         .success();