diff options
Diffstat (limited to 'compiler/rustc_driver_impl/src')
| -rw-r--r-- | compiler/rustc_driver_impl/src/lib.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs index 5fac485de64..353f49e6619 100644 --- a/compiler/rustc_driver_impl/src/lib.rs +++ b/compiler/rustc_driver_impl/src/lib.rs @@ -255,6 +255,9 @@ fn run_compiler( let sopts = config::build_session_options(&matches); + // Set parallel mode before thread pool creation as the session will already create locks. + interface::set_parallel_mode(&sopts.unstable_opts); + if let Some(ref code) = matches.opt_str("explain") { handle_explain(diagnostics_registry(), code, sopts.error_format); return Ok(()); |