Fix build issue from new version of system, another try at CI.

.github/workflows/rust.yml

@@ -30,4 +30,4 @@ jobs:
     - name: Install tools
       run: pushd src/rust; cargo install cargo-outdated; popd
     - name: Check for outdated dependencies
-      run: pushd src/rust; cargo outdated -w --color=always --root-deps-only --exit-code 1 -v
+      script: cd src/rust; cargo outdated -w --color=always --root-deps-only --exit-code 1

src/rust/lqosd/src/file_lock.rs

@@ -40,7 +40,7 @@ impl FileLock {
     let pid: i32 = contents.parse()?;
 
     let sys = System::new_all();
-    if let Some(process) = sys.processes().get(&Pid::from(pid)) {
+    if let Some(process) = sys.processes().get(pid) {
       if process.name().contains("lqosd") {
         return Ok(true);
       }