diff --git a/components/script_plugins/lib.rs b/components/script_plugins/lib.rs
index b544b95ca1a..ba8475212f8 100644
--- a/components/script_plugins/lib.rs
+++ b/components/script_plugins/lib.rs
@@ -95,7 +95,7 @@ fn has_lint_attr(sym: &Symbols, attrs: &[Attribute], name: Symbol) -> bool {
 fn is_unrooted_ty<'tcx>(
     sym: &'_ Symbols,
     cx: &LateContext<'tcx>,
-    ty: &'tcx ty::TyS<'tcx>,
+    ty: ty::Ty<'tcx>,
     in_new_function: bool,
 ) -> bool {
     let mut ret = false;
@@ -279,7 +279,7 @@ impl<'tcx> LateLintPass<'tcx> for UnrootedPass {
             let sig = cx.tcx.type_of(def_id).fn_sig(cx.tcx);
 
             for (arg, ty) in decl.inputs.iter().zip(sig.inputs().skip_binder().iter()) {
-                if is_unrooted_ty(&self.symbols, cx, ty, false) {
+                if is_unrooted_ty(&self.symbols, cx, *ty, false) {
                     cx.lint(UNROOTED_MUST_ROOT, |lint| {
                         lint.build("Type must be rooted").set_span(arg.span).emit()
                     })
diff --git a/python/servo/build_commands.py b/python/servo/build_commands.py
index 976e39c6b47..a3875e2c679 100644
--- a/python/servo/build_commands.py
+++ b/python/servo/build_commands.py
@@ -645,7 +645,7 @@ class MachCommands(CommandBase):
         # https://internals.rust-lang.org/t/exploring-crate-graph-build-times-with-cargo-build-ztimings/10975
         # Prepend so that e.g. `-Ztimings` (which means `-Ztimings=info,html`)
         # given on the command line can override it
-        opts = ["-Ztimings=info"] + opts
+        opts = ["--timings"] + opts
 
         if very_verbose:
             print(["Calling", "cargo", "build"] + opts)
diff --git a/rust-toolchain b/rust-toolchain
index 3fe568ef809..d9207092a56 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly-2022-01-20
+nightly-2022-03-06