diff --git a/Cargo.lock b/Cargo.lock
index a6d4544e957..74faaeff413 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,3 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
 [[package]]
 name = "adler32"
 version = "1.0.3"
diff --git a/components/script_plugins/unrooted_must_root.rs b/components/script_plugins/unrooted_must_root.rs
index dc38054720c..e1a78908033 100644
--- a/components/script_plugins/unrooted_must_root.rs
+++ b/components/script_plugins/unrooted_must_root.rs
@@ -100,6 +100,10 @@ fn is_unrooted_ty(cx: &LateContext, ty: &ty::TyS, in_new_function: bool) -> bool
 }
 
 impl LintPass for UnrootedPass {
+    fn name(&self) -> &'static str {
+        "ServoUnrootedPass"
+    }
+
     fn get_lints(&self) -> LintArray {
         lint_array!(UNROOTED_MUST_ROOT)
     }
diff --git a/rust-toolchain b/rust-toolchain
index 3bd0575c240..452bb5c2b97 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly-2019-01-15
+nightly-2019-01-28