feat(cubesql): Allow to upgrade Rust to stable

Author: ovr

packages/cubejs-backend-native/Cargo.lock

@@ -1,7 +1,6 @@
-#![feature(async_closure)]
-#![feature(thread_id_value)]
 #![allow(clippy::result_large_err)]
 
+#[cfg(feature = "python")]
 extern crate findshlibs;
 
 pub mod auth;

packages/cubejs-backend-native/src/lib.rs

@@ -51,9 +51,10 @@ impl JinjaEngineWorker {
                 );
             } else {
                 trace!(
-                    "Closing jinja thread, id: {}, threadId: {}",
+                    "Closing jinja thread, id: {}, threadId: {:?}",
                     id,
-                    std::thread::current().id().as_u64()
+                    // TODO: Use as_u64 when it will be stable - https://github.com/rust-lang/rust/issues/67939
+                    std::thread::current().id()
                 );
 
                 return;