Deafult to 1 thread

rust-lang · Apr 1, 2019 · c4fa1e0 · c4fa1e0
1 parent 4382c25
commit c4fa1e0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/librustc/session/config.rs b/src/librustc/session/config.rs
@@ -1233,7 +1233,7 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
         "prints the llvm optimization passes being run"),
     ast_json: bool = (false, parse_bool, [UNTRACKED],
         "print the AST as JSON and halt"),
-    threads: Option<usize> = (None, parse_opt_uint, [UNTRACKED],
+    threads: Option<usize> = (Some(1), parse_opt_uint, [UNTRACKED],
         "use a thread pool with N threads"),
     ast_json_noexpand: bool = (false, parse_bool, [UNTRACKED],
         "print the pre-expansion AST as JSON and halt"),