Apply Clippy suggestions

Author: mati865

rls/src/build/cargo_plan.rs

@@ -329,7 +329,7 @@ impl CargoPlan {
         ) {
             if !visited.contains(unit) {
                 visited.insert(unit.clone());
-                for neighbour in graph.get(unit).into_iter().flat_map(|nodes| nodes) {
+                for neighbour in graph.get(unit).into_iter().flatten() {
                     dfs(neighbour, graph, visited, output);
                 }
                 output.push(unit.clone());

tests/support/paths.rs

@@ -9,7 +9,7 @@ use std::path::{Path, PathBuf};
 use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::Once;
 
-static RLS_INTEGRATION_TEST_DIR: &'static str = "rlsit";
+static RLS_INTEGRATION_TEST_DIR: &str = "rlsit";
 static NEXT_ID: AtomicUsize = AtomicUsize::new(0);
 
 thread_local!(static TASK_ID: usize = NEXT_ID.fetch_add(1, Ordering::SeqCst));