From fa3e3cb6eaa00ce61e3215d8f77eff965dfbbfaf Mon Sep 17 00:00:00 2001
From: flip1995 <9744647+flip1995@users.noreply.github.com>
Date: Fri, 7 Sep 2018 17:18:00 +0200
Subject: [PATCH 1/2] Fix #3145 by removing assert

---
 clippy_lints/src/write.rs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/clippy_lints/src/write.rs b/clippy_lints/src/write.rs
index 7ddae1c81..69d99cc60 100644
--- a/clippy_lints/src/write.rs
+++ b/clippy_lints/src/write.rs
@@ -284,7 +284,6 @@ fn check_tts<'a>(cx: &EarlyContext<'a>, tts: &ThinTokenStream, is_write: bool) -
     let mut idx = 0;
     loop {
         if !parser.eat(&token::Comma) {
-            assert!(parser.eat(&token::Eof));
             return (Some(fmtstr), expr);
         }
         let token_expr = match parser.parse_expr().map_err(|mut err| err.cancel()) {

From 90f7997771ca34e699f98c30d519711253c2c148 Mon Sep 17 00:00:00 2001
From: flip1995 <9744647+flip1995@users.noreply.github.com>
Date: Fri, 7 Sep 2018 17:18:47 +0200
Subject: [PATCH 2/2] Add regression test

---
 tests/ui/issue-3145.rs     | 3 +++
 tests/ui/issue-3145.stderr | 8 ++++++++
 2 files changed, 11 insertions(+)
 create mode 100644 tests/ui/issue-3145.rs
 create mode 100644 tests/ui/issue-3145.stderr

diff --git a/tests/ui/issue-3145.rs b/tests/ui/issue-3145.rs
new file mode 100644
index 000000000..f497d5550
--- /dev/null
+++ b/tests/ui/issue-3145.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("{}" a); //~ERROR expected token: `,`
+}
diff --git a/tests/ui/issue-3145.stderr b/tests/ui/issue-3145.stderr
new file mode 100644
index 000000000..e289df043
--- /dev/null
+++ b/tests/ui/issue-3145.stderr
@@ -0,0 +1,8 @@
+error: expected token: `,`
+ --> $DIR/issue-3145.rs:2:19
+  |
+2 |     println!("{}" a); //~ERROR expected token: `,`
+  |                   ^
+
+error: aborting due to previous error
+