2 files changed, 2 insertions, 2 deletions
diff --git a/src/libsyntax/ast_map/mod.rs b/src/libsyntax/ast_map/mod.rs
index 257bfc632d8..a5458461a8b 100644
--- a/src/libsyntax/ast_map/mod.rs
+++ b/src/libsyntax/ast_map/mod.rs
@@ -496,7 +496,7 @@ impl<'ast> Map<'ast> {
         NodesMatchingSuffix {
             map: self,
             item_name: parts.last().unwrap(),
-            in_which: parts[..parts.len() - 1],
+            in_which: parts.slice_to(parts.len() - 1),
             idx: 0,
         }
     }
diff --git a/src/libsyntax/diagnostic.rs b/src/libsyntax/diagnostic.rs
index 6d063aef5a9..f33c768d647 100644
--- a/src/libsyntax/diagnostic.rs
+++ b/src/libsyntax/diagnostic.rs
@@ -414,7 +414,7 @@ fn highlight_lines(err: &mut EmitterWriter,
     let mut elided = false;
     let mut display_lines = lines.lines.as_slice();
     if display_lines.len() > MAX_LINES {
-        display_lines = display_lines[0u..MAX_LINES];
+        display_lines = display_lines.slice(0u, MAX_LINES);
         elided = true;
     }
     // Print the offending lines