diff --git a/clippy_lints/src/matches.rs b/clippy_lints/src/matches.rs
index 519298c33..9cb557ba6 100644
--- a/clippy_lints/src/matches.rs
+++ b/clippy_lints/src/matches.rs
@@ -491,6 +491,7 @@ pub fn overlapping<T>(ranges: &[SpannedRange<T>]) -> Option<(&SpannedRange<T>, &
             match (self.value(), other.value()) {
                 (Bound::Included(a), Bound::Included(b)) |
                 (Bound::Excluded(a), Bound::Excluded(b)) => a.cmp(&b),
+                // Range patterns cannot be unbounded (yet)
                 (Bound::Unbounded, _) |
                 (_, Bound::Unbounded) => unimplemented!(),
                 (Bound::Included(a), Bound::Excluded(b)) => {
diff --git a/tests/compile-fail/matches.rs b/tests/compile-fail/matches.rs
index 61a1ec51d..7f6bd73d2 100644
--- a/tests/compile-fail/matches.rs
+++ b/tests/compile-fail/matches.rs
@@ -229,14 +229,14 @@ fn overlapping() {
 
     match 42 {
         0 ... 10 => println!("0 ... 10"), //~ERROR: some ranges overlap
-        0 ... 11 => println!("0 ... 10"), //~NOTE overlaps with this
+        0 ... 11 => println!("0 ... 11"), //~NOTE overlaps with this
         _ => (),
     }
 
     match 42 {
         0 ... 5 => println!("0 ... 5"), //~ERROR: some ranges overlap
         6 ... 7 => println!("6 ... 7"),
-        FOO ... 11 => println!("0 ... 10"), //~NOTE overlaps with this
+        FOO ... 11 => println!("0 ... 11"), //~NOTE overlaps with this
         _ => (),
     }
 
@@ -248,13 +248,13 @@ fn overlapping() {
 
     match 42 {
         2 => println!("2"), //~NOTE overlaps with this
-        0 ... 2 => println!("0 ... 5"), //~ERROR: some ranges overlap
+        0 ... 2 => println!("0 ... 2"), //~ERROR: some ranges overlap
         _ => (),
     }
 
     match 42 {
         0 ... 10 => println!("0 ... 10"),
-        11 ... 50 => println!("0 ... 10"),
+        11 ... 50 => println!("11 ... 50"),
         _ => (),
     }
 
@@ -265,8 +265,8 @@ fn overlapping() {
     }
 
     match 42 {
-        0 .. 10 => println!("0 ... 10"),
-        10 .. 50 => println!("0 ... 10"),
+        0 .. 10 => println!("0 .. 10"),
+        10 .. 50 => println!("10 .. 50"),
         _ => (),
     }