diff --git a/src/rt/rust_shape.cpp b/src/rt/rust_shape.cpp
index e80512b92a01..71a11a7d7586 100644
--- a/src/rt/rust_shape.cpp
+++ b/src/rt/rust_shape.cpp
@@ -111,23 +111,42 @@ print::walk_struct(bool align, const uint8_t *end_sp) {
 
 void
 print::walk_res(bool align, const rust_fn *dtor, uint16_t n_ty_params,
-                const uint8_t *ty_params_sp) {
+                const uint8_t *ty_params_sp, const uint8_t *end_sp) {
     DPRINT("res@%p", dtor);
-    if (!n_ty_params)
+
+    // Print type parameters.
+    if (n_ty_params) {
+        DPRINT("<");
+
+        bool first = true;
+        for (uint16_t i = 0; i < n_ty_params; i++) {
+            if (!first)
+                DPRINT(",");
+            first = false;
+            get_u16_bump(sp);   // Skip over the size.
+            walk(align);
+        }
+
+        DPRINT(">");
+    }
+
+    // Print arguments.
+
+    if (sp == end_sp)
         return;
 
-    DPRINT("<");
+    DPRINT("(");
 
     bool first = true;
-    for (uint16_t i = 0; i < n_ty_params; i++) {
+    while (sp != end_sp) {
         if (!first)
             DPRINT(",");
         first = false;
-        get_u16_bump(sp);   // Skip over the size.
+
         walk(align);
     }
 
-    DPRINT(">");
+    DPRINT(")");
 }
 
 void
@@ -328,7 +347,8 @@ public:
                   const data_pair<uint32_t> &tag_variants);
     void walk_struct(bool align, const uint8_t *end_sp);
     void walk_res(bool align, const rust_fn *dtor, uint16_t n_ty_params,
-                  const uint8_t *ty_params_sp);
+                  const uint8_t *ty_params_sp, const uint8_t *end_sp,
+                  const data_pair<uintptr_t> &live);
     void walk_variant(bool align, tag_info &tinfo, uint32_t variant_id,
                       const std::pair<const uint8_t *,const uint8_t *>
                       variant_ptr_and_end);
@@ -380,7 +400,8 @@ cmp::walk_struct(bool align, const uint8_t *end_sp) {
 
 void
 cmp::walk_res(bool align, const rust_fn *dtor, uint16_t n_ty_params,
-              const uint8_t *ty_params_sp) {
+              const uint8_t *ty_params_sp, const uint8_t *end_sp,
+              const data_pair<uintptr_t> &live) {
     abort();    // TODO
 }
 
@@ -480,6 +501,28 @@ log::walk_variant(bool align, tag_info &tinfo, uint32_t variant_id,
         out << ")";
 }
 
+void
+log::walk_res(bool align, const rust_fn *dtor, uint16_t n_ty_params,
+              const uint8_t *ty_params_sp, const uint8_t *end_sp,
+              bool live) {
+    out << "res";
+
+    if (this->sp == end_sp)
+        return;
+
+    out << "(";
+
+    bool first = true;
+    while (sp != end_sp) {
+        if (!first)
+            out << ", ";
+        walk(align);
+        align = true, first = false;
+    }
+
+    out << ")";
+}
+
 } // end namespace shape
 
 extern "C" void
diff --git a/src/rt/rust_shape.h b/src/rt/rust_shape.h
index d8bb6b64c8ff..c2b551f65bc5 100644
--- a/src/rt/rust_shape.h
+++ b/src/rt/rust_shape.h
@@ -453,7 +453,8 @@ ctxt<T>::walk_res(bool align) {
     uint16_t sp_size = get_u16_bump(sp);
     const uint8_t *end_sp = sp + sp_size;
 
-    static_cast<T *>(this)->walk_res(align, dtor, n_ty_params, ty_params_sp);
+    static_cast<T *>(this)->walk_res(align, dtor, n_ty_params, ty_params_sp,
+                                     end_sp);
 
     sp = end_sp;
 }
@@ -479,7 +480,7 @@ public:
     void walk_tag(bool align, tag_info &tinfo);
     void walk_struct(bool align, const uint8_t *end_sp);
     void walk_res(bool align, const rust_fn *dtor, uint16_t n_ty_params,
-                  const uint8_t *ty_params_sp);
+                  const uint8_t *ty_params_sp, const uint8_t *end_sp);
     void walk_var(bool align, uint8_t param);
 
     void walk_evec(bool align, bool is_pod, uint16_t sp_size) {
@@ -559,7 +560,7 @@ public:
     }
 
     void walk_res(bool align, const rust_fn *dtor, uint16_t n_ty_params,
-                  const uint8_t *ty_params_sp) {
+                  const uint8_t *ty_params_sp, const uint8_t *end_sp) {
         abort();    // TODO
     }
 
@@ -788,10 +789,11 @@ public:
     }
 
     void walk_res(bool align, const rust_fn *dtor, uint16_t n_ty_params,
-                  const uint8_t *ty_params_sp) {
+                  const uint8_t *ty_params_sp, const uint8_t *end_sp) {
+        typename U::template data<uintptr_t>::t live = bump_dp<uintptr_t>(dp);
         // Delegate to the implementation.
         static_cast<T *>(this)->walk_res(align, dtor, n_ty_params,
-                                         ty_params_sp);
+                                         ty_params_sp, end_sp, live);
     }
 
     void walk_var(bool align, uint8_t param_index) {
@@ -957,8 +959,6 @@ private:
     : data<log,ptr>(other.task, other.sp, other.params, other.tables, in_dp),
       out(other.out) {}
 
-    void walk_string(const std::pair<ptr,ptr> &data);
-
     void walk_evec(bool align, bool is_pod, uint16_t sp_size) {
         walk_vec(align, is_pod, get_evec_data_range(dp));
     }
@@ -991,11 +991,6 @@ private:
     void walk_chan(bool align) { out << "chan"; }
     void walk_task(bool align) { out << "task"; }
 
-    void walk_res(bool align, const rust_fn *dtor, uint16_t n_ty_params,
-                  const uint8_t *ty_params_sp) {
-        out << "res";   // TODO
-    }
-
     void walk_subcontext(bool align, log &sub) { sub.walk(align); }
 
     void walk_box_contents(bool align, log &sub, ptr &ref_count_dp) {
@@ -1010,6 +1005,10 @@ private:
     void walk_variant(bool align, tag_info &tinfo, uint32_t variant_id,
                       const std::pair<const uint8_t *,const uint8_t *>
                       variant_ptr_and_end);
+    void walk_string(const std::pair<ptr,ptr> &data);
+    void walk_res(bool align, const rust_fn *dtor, uint16_t n_ty_params,
+                  const uint8_t *ty_params_sp, const uint8_t *end_sp,
+                  bool live);
 
     template<typename T>
     void walk_number() { out << get_dp<T>(dp); }