lang/rust-nightly: unbreak after r489123

error[E0621]: explicit lifetime required in the type of `msg`
   --> src/tools/rls/src/server/mod.rs:185:21
    |
173 |       fn dispatch_message(&mut self, msg: &RawMessage) -> Result<(), jsonrpc::Error> {
    |                                           ----------- help: add explicit lifetime `'static` to the type of `msg`: `&'static server::message::RawMessage`
...
185 |                       <$n_action as LSPNotification>::METHOD => {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime `'static` required
...
259 | /         match_action!(
260 | |             msg.method;
261 | |             notifications:
262 | |                 notifications::Initialized,
...   |
287 | |                 requests::CodeLensRequest;
288 | |         );
    | |__________- in this macro invocation

1 files changed, 28 insertions, 0 deletions

diff --git a/lang/rust-nightly/files/patch-rls-nightly b/lang/rust-nightly/files/patch-rls-nightly
new file mode 100644
index 000000000000..c51ab3b7d6b7
--- /dev/null
+++ b/lang/rust-nightly/files/patch-rls-nightly
@@ -0,0 +1,28 @@
+https://github.com/rust-lang/rls/commit/085e9266e333
+
+--- src/tools/rls/src/server/mod.rs.orig	2019-01-02 15:11:46 UTC
++++ src/tools/rls/src/server/mod.rs
+@@ -170,7 +170,7 @@ impl<O: Output> LsService<O> {
+         }
+     }
+ 
+-    fn dispatch_message(&mut self, msg: &RawMessage) -> Result<(), jsonrpc::Error> {
++    fn dispatch_message(&mut self, msg: RawMessage) -> Result<(), jsonrpc::Error> {
+         macro_rules! match_action {
+             (
+                 $method: expr;
+@@ -334,9 +334,12 @@ impl<O: Output> LsService<O> {
+             }
+         }
+ 
+-        if let Err(e) = self.dispatch_message(&raw_message) {
++        // Workaround https://github.com/rust-lang/rust/pull/55937 by moving
++        // raw_message instead of borrowing.
++        let id = raw_message.id.clone();
++        if let Err(e) = self.dispatch_message(raw_message) {
+             error!("dispatch error: {:?}, message: `{}`", e, msg_string);
+-            self.output.failure(raw_message.id, e);
++            self.output.failure(id, e);
+             return ServerStateChange::Break { exit_code: 101 };
+         }
+