Fix clippy

Author: Heliozoa

crates/plugins/make/src/plugin.rs

@@ -269,7 +269,7 @@ impl LanguagePlugin for MakePlugin {
                 for (test_result, valgrind_result) in run_result
                     .test_results
                     .iter_mut()
-                    .zip(valgrind_log.results.into_iter())
+                    .zip(valgrind_log.results)
                 {
                     if valgrind_result.errors {
                         if test_result.successful {

crates/plugins/python3/src/plugin.rs

@@ -80,7 +80,7 @@ impl Python3Plugin {
 
     fn get_local_python_ver() -> Result<(u32, u32, u32), PythonError> {
         let output = Self::get_local_python_command()
-        .with(|e| e.args(&["-c", "import sys; print(sys.version_info.major); print(sys.version_info.minor); print(sys.version_info.micro);"]))
+        .with(|e| e.args(["-c", "import sys; print(sys.version_info.major); print(sys.version_info.minor); print(sys.version_info.micro);"]))
         .output_checked()?;
         let stdout = String::from_utf8_lossy(&output.stdout);
         let mut lines = stdout.lines();
@@ -139,7 +139,7 @@ impl Python3Plugin {
         let common_args = ["-m", "tmc"];
 
         let command = Self::get_local_python_command();
-        let command = command.with(|e| e.args(&common_args).args(extra_args).cwd(path));
+        let command = command.with(|e| e.args(common_args).args(extra_args).cwd(path));
         let command = if let Some(stdin) = stdin {
             command.set_stdin_data(stdin)
         } else {

crates/tmc-langs/src/course_refresher.rs

@@ -215,7 +215,7 @@ fn initialize_new_cache_clone(
     // clone_repository
     TmcCommand::piped("git")
         .with(|e| {
-            e.args(&["clone", "-q", "-b"])
+            e.args(["clone", "-q", "-b"])
                 .arg(course_git_branch)
                 .arg(course_source_url)
                 .arg(new_clone_path)

crates/tmc-mooc-client/src/exercise.rs

@@ -82,6 +82,7 @@ pub enum PublicSpec {
 
 #[derive(Debug, Serialize, Deserialize)]
 #[serde(tag = "type")]
+#[allow(unused)]
 pub enum UserAnswer {
     Browser { files: Vec<ExerciseFile> },
     Editor { archive_download_url: String },