Bind sandbox handoff authority and restore verifier gates

crates/lazaret-ignored-workspace/src/main.rs

@@ -29,8 +29,7 @@ fn parse(arguments: &[OsString]) -> io::Result<MountConfiguration> {
         mountpoint: PathBuf::from(&arguments[2]),
         global_excludes: arguments.get(3).map(PathBuf::from),
         threads: std::thread::available_parallelism()
-            .map(std::num::NonZero::get)
-            .unwrap_or(1)
+            .map_or(1, std::num::NonZero::get)
             .min(8),
     })
 }