From 70f388cedba89c204131ebc81a202563a8e19437 Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonasschievink@gmail.com>
Date: Fri, 12 Feb 2021 12:09:54 +0100
Subject: [PATCH] Pin Rust to 1.49.0 on CI

---
 .github/workflows/ci.yaml             | 10 +++++++++-
 crates/ide/src/references/rename.rs   |  6 +++---
 crates/parser/src/grammar/params.rs   | 11 ++++++-----
 crates/rust-analyzer/src/main_loop.rs |  2 +-
 crates/rust-analyzer/src/to_proto.rs  |  3 ++-
 5 files changed, 21 insertions(+), 11 deletions(-)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 1850068a34..ec9ef59a88 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -53,11 +53,19 @@ jobs:
     - name: Install Rust toolchain
       uses: actions-rs/toolchain@v1
       with:
-        toolchain: stable
+        toolchain: 1.49.0   # FIXME: CI is failing on 1.50
         profile: minimal
         override: true
         components: rustfmt, rust-src
 
+    - name: Install rustfmt
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        profile: minimal
+        override: false
+        components: rustfmt
+
     - name: Cache cargo directories
       uses: actions/cache@v2
       with:
diff --git a/crates/ide/src/references/rename.rs b/crates/ide/src/references/rename.rs
index 99a5585328..ebb1ce7dda 100644
--- a/crates/ide/src/references/rename.rs
+++ b/crates/ide/src/references/rename.rs
@@ -415,9 +415,9 @@ fn rename_reference(
 ) -> RenameResult<SourceChange> {
     let ident_kind = check_identifier(new_name)?;
 
-    let def_is_lbl_or_lt = matches!(def,
-        Definition::GenericParam(hir::GenericParam::LifetimeParam(_))
-        | Definition::Label(_)
+    let def_is_lbl_or_lt = matches!(
+        def,
+        Definition::GenericParam(hir::GenericParam::LifetimeParam(_)) | Definition::Label(_)
     );
     match (ident_kind, def) {
         (IdentifierKind::ToSelf, _)
diff --git a/crates/parser/src/grammar/params.rs b/crates/parser/src/grammar/params.rs
index 6a98d73686..e313f6fb7f 100644
--- a/crates/parser/src/grammar/params.rs
+++ b/crates/parser/src/grammar/params.rs
@@ -169,11 +169,12 @@ fn opt_self_param(p: &mut Parser, m: Marker) {
         let la1 = p.nth(1);
         let la2 = p.nth(2);
         let la3 = p.nth(3);
-        if !matches!((p.current(), la1, la2, la3),
-              (T![&], T![self], _, _)
-            | (T![&], T![mut], T![self], _)
-            | (T![&], LIFETIME_IDENT, T![self], _)
-            | (T![&], LIFETIME_IDENT, T![mut], T![self])
+        if !matches!(
+            (p.current(), la1, la2, la3),
+            (T![&], T![self], _, _)
+                | (T![&], T![mut], T![self], _)
+                | (T![&], LIFETIME_IDENT, T![self], _)
+                | (T![&], LIFETIME_IDENT, T![mut], T![self])
         ) {
             return m.abandon(p);
         }
diff --git a/crates/rust-analyzer/src/main_loop.rs b/crates/rust-analyzer/src/main_loop.rs
index f4fd1ac133..bdffff5aeb 100644
--- a/crates/rust-analyzer/src/main_loop.rs
+++ b/crates/rust-analyzer/src/main_loop.rs
@@ -398,7 +398,7 @@ impl GlobalState {
         }
 
         let state_changed = self.process_changes();
-        let is_ready = matches!(self.status, Status::Ready { .. } );
+        let is_ready = matches!(self.status, Status::Ready { .. });
         if prev_status == Status::Loading && is_ready {
             for flycheck in &self.flycheck {
                 flycheck.update();
diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs
index 5236932e8a..be10ac1aee 100644
--- a/crates/rust-analyzer/src/to_proto.rs
+++ b/crates/rust-analyzer/src/to_proto.rs
@@ -528,7 +528,8 @@ pub(crate) fn url_from_abs_path(path: &Path) -> lsp_types::Url {
     assert!(path.is_absolute());
     let url = lsp_types::Url::from_file_path(path).unwrap();
     match path.components().next() {
-        Some(path::Component::Prefix(prefix)) if matches!(prefix.kind(), path::Prefix::Disk(_) | path::Prefix::VerbatimDisk(_)) =>
+        Some(path::Component::Prefix(prefix))
+            if matches!(prefix.kind(), path::Prefix::Disk(_) | path::Prefix::VerbatimDisk(_)) =>
         {
             // Need to lowercase driver letter
         }