diff --git a/src/librustc/hir/intravisit.rs b/src/librustc/hir/intravisit.rs
index 1755b3bca0572..d99d7cd897b9f 100644
--- a/src/librustc/hir/intravisit.rs
+++ b/src/librustc/hir/intravisit.rs
@@ -780,9 +780,7 @@ pub fn walk_fn_kind<'v, V: Visitor<'v>>(visitor: &mut V, function_kind: FnKind<'
         FnKind::ItemFn(_, generics, ..) => {
             visitor.visit_generics(generics);
         }
-        FnKind::Method(_, sig, ..) => {
-            visitor.visit_generics(&sig.generics);
-        }
+        FnKind::Method(..) |
         FnKind::Closure(_) => {}
     }
 }
@@ -802,6 +800,7 @@ pub fn walk_fn<'v, V: Visitor<'v>>(visitor: &mut V,
 pub fn walk_trait_item<'v, V: Visitor<'v>>(visitor: &mut V, trait_item: &'v TraitItem) {
     visitor.visit_name(trait_item.span, trait_item.name);
     walk_list!(visitor, visit_attribute, &trait_item.attrs);
+    visitor.visit_generics(&trait_item.generics);
     match trait_item.node {
         TraitItemKind::Const(ref ty, default) => {
             visitor.visit_id(trait_item.id);
@@ -810,7 +809,6 @@ pub fn walk_trait_item<'v, V: Visitor<'v>>(visitor: &mut V, trait_item: &'v Trai
         }
         TraitItemKind::Method(ref sig, TraitMethod::Required(ref names)) => {
             visitor.visit_id(trait_item.id);
-            visitor.visit_generics(&sig.generics);
             visitor.visit_fn_decl(&sig.decl);
             for name in names {
                 visitor.visit_name(name.span, name.node);
@@ -852,6 +850,7 @@ pub fn walk_impl_item<'v, V: Visitor<'v>>(visitor: &mut V, impl_item: &'v ImplIt
         ref vis,
         ref defaultness,
         ref attrs,
+        ref generics,
         ref node,
         span
     } = *impl_item;
@@ -860,6 +859,7 @@ pub fn walk_impl_item<'v, V: Visitor<'v>>(visitor: &mut V, impl_item: &'v ImplIt
     visitor.visit_vis(vis);
     visitor.visit_defaultness(defaultness);
     walk_list!(visitor, visit_attribute, attrs);
+    visitor.visit_generics(generics);
     match *node {
         ImplItemKind::Const(ref ty, body) => {
             visitor.visit_id(impl_item.id);
diff --git a/src/librustc/hir/lowering.rs b/src/librustc/hir/lowering.rs
index 848da9637a299..0a9b44784b4f5 100644
--- a/src/librustc/hir/lowering.rs
+++ b/src/librustc/hir/lowering.rs
@@ -1539,6 +1539,7 @@ impl<'a> LoweringContext<'a> {
                 hir_id,
                 name: this.lower_ident(i.ident),
                 attrs: this.lower_attrs(&i.attrs),
+                generics: this.lower_generics(&i.generics),
                 node: match i.node {
                     TraitItemKind::Const(ref ty, ref default) => {
                         hir::TraitItemKind::Const(this.lower_ty(ty),
@@ -1603,6 +1604,7 @@ impl<'a> LoweringContext<'a> {
                 hir_id,
                 name: this.lower_ident(i.ident),
                 attrs: this.lower_attrs(&i.attrs),
+                generics: this.lower_generics(&i.generics),
                 vis: this.lower_visibility(&i.vis, None),
                 defaultness: this.lower_defaultness(i.defaultness, true /* [1] */),
                 node: match i.node {
@@ -1729,7 +1731,6 @@ impl<'a> LoweringContext<'a> {
 
     fn lower_method_sig(&mut self, sig: &MethodSig) -> hir::MethodSig {
         hir::MethodSig {
-            generics: self.lower_generics(&sig.generics),
             abi: sig.abi,
             unsafety: self.lower_unsafety(sig.unsafety),
             constness: self.lower_constness(sig.constness),
diff --git a/src/librustc/hir/mod.rs b/src/librustc/hir/mod.rs
index 5ad0ff04c1b9c..fb3fc8a2da4f3 100644
--- a/src/librustc/hir/mod.rs
+++ b/src/librustc/hir/mod.rs
@@ -1295,7 +1295,6 @@ pub struct MethodSig {
     pub constness: Constness,
     pub abi: Abi,
     pub decl: P<FnDecl>,
-    pub generics: Generics,
 }
 
 // The bodies for items are stored "out of line", in a separate
@@ -1316,6 +1315,7 @@ pub struct TraitItem {
     pub name: Name,
     pub hir_id: HirId,
     pub attrs: HirVec<Attribute>,
+    pub generics: Generics,
     pub node: TraitItemKind,
     pub span: Span,
 }
@@ -1360,6 +1360,7 @@ pub struct ImplItem {
     pub vis: Visibility,
     pub defaultness: Defaultness,
     pub attrs: HirVec<Attribute>,
+    pub generics: Generics,
     pub node: ImplItemKind,
     pub span: Span,
 }
diff --git a/src/librustc/hir/print.rs b/src/librustc/hir/print.rs
index 7287e599b290d..b461487355007 100644
--- a/src/librustc/hir/print.rs
+++ b/src/librustc/hir/print.rs
@@ -880,6 +880,7 @@ impl<'a> State<'a> {
     pub fn print_method_sig(&mut self,
                             name: ast::Name,
                             m: &hir::MethodSig,
+                            generics: &hir::Generics,
                             vis: &hir::Visibility,
                             arg_names: &[Spanned<ast::Name>],
                             body_id: Option<hir::BodyId>)
@@ -889,7 +890,7 @@ impl<'a> State<'a> {
                       m.constness,
                       m.abi,
                       Some(name),
-                      &m.generics,
+                      generics,
                       vis,
                       arg_names,
                       body_id)
@@ -905,12 +906,14 @@ impl<'a> State<'a> {
                 self.print_associated_const(ti.name, &ty, default, &hir::Inherited)?;
             }
             hir::TraitItemKind::Method(ref sig, hir::TraitMethod::Required(ref arg_names)) => {
-                self.print_method_sig(ti.name, sig, &hir::Inherited, arg_names, None)?;
+                self.print_method_sig(ti.name, sig, &ti.generics, &hir::Inherited, arg_names,
+                    None)?;
                 self.s.word(";")?;
             }
             hir::TraitItemKind::Method(ref sig, hir::TraitMethod::Provided(body)) => {
                 self.head("")?;
-                self.print_method_sig(ti.name, sig, &hir::Inherited, &[], Some(body))?;
+                self.print_method_sig(ti.name, sig, &ti.generics, &hir::Inherited, &[],
+                    Some(body))?;
                 self.nbsp()?;
                 self.end()?; // need to close a box
                 self.end()?; // need to close a box
@@ -938,7 +941,7 @@ impl<'a> State<'a> {
             }
             hir::ImplItemKind::Method(ref sig, body) => {
                 self.head("")?;
-                self.print_method_sig(ii.name, sig, &ii.vis, &[], Some(body))?;
+                self.print_method_sig(ii.name, sig, &ii.generics, &ii.vis, &[], Some(body))?;
                 self.nbsp()?;
                 self.end()?; // need to close a box
                 self.end()?; // need to close a box
diff --git a/src/librustc/ich/impls_hir.rs b/src/librustc/ich/impls_hir.rs
index c0fae8bf8bd20..994f0bd16b1f8 100644
--- a/src/librustc/ich/impls_hir.rs
+++ b/src/librustc/ich/impls_hir.rs
@@ -232,8 +232,7 @@ impl_stable_hash_for!(struct hir::MethodSig {
     unsafety,
     constness,
     abi,
-    decl,
-    generics
+    decl
 });
 
 impl_stable_hash_for!(struct hir::TypeBinding {
@@ -709,6 +708,7 @@ impl<'gcx> HashStable<StableHashingContext<'gcx>> for hir::TraitItem {
             hir_id: _,
             name,
             ref attrs,
+            ref generics,
             ref node,
             span
         } = *self;
@@ -716,6 +716,7 @@ impl<'gcx> HashStable<StableHashingContext<'gcx>> for hir::TraitItem {
         hcx.hash_hir_item_like(attrs, |hcx| {
             name.hash_stable(hcx, hasher);
             attrs.hash_stable(hcx, hasher);
+            generics.hash_stable(hcx, hasher);
             node.hash_stable(hcx, hasher);
             span.hash_stable(hcx, hasher);
         });
@@ -744,6 +745,7 @@ impl<'gcx> HashStable<StableHashingContext<'gcx>> for hir::ImplItem {
             ref vis,
             defaultness,
             ref attrs,
+            ref generics,
             ref node,
             span
         } = *self;
@@ -753,6 +755,7 @@ impl<'gcx> HashStable<StableHashingContext<'gcx>> for hir::ImplItem {
             vis.hash_stable(hcx, hasher);
             defaultness.hash_stable(hcx, hasher);
             attrs.hash_stable(hcx, hasher);
+            generics.hash_stable(hcx, hasher);
             node.hash_stable(hcx, hasher);
             span.hash_stable(hcx, hasher);
         });
diff --git a/src/librustc/middle/reachable.rs b/src/librustc/middle/reachable.rs
index bb6213cb5faaf..2037bc01a5bc9 100644
--- a/src/librustc/middle/reachable.rs
+++ b/src/librustc/middle/reachable.rs
@@ -58,11 +58,10 @@ fn item_might_be_inlined(item: &hir::Item) -> bool {
 }
 
 fn method_might_be_inlined<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
-                                     sig: &hir::MethodSig,
                                      impl_item: &hir::ImplItem,
                                      impl_src: DefId) -> bool {
     if attr::requests_inline(&impl_item.attrs) ||
-        generics_require_inlining(&sig.generics) {
+        generics_require_inlining(&impl_item.generics) {
         return true
     }
     if let Some(impl_node_id) = tcx.hir.as_local_node_id(impl_src) {
@@ -176,8 +175,8 @@ impl<'a, 'tcx> ReachableContext<'a, 'tcx> {
             Some(hir_map::NodeImplItem(impl_item)) => {
                 match impl_item.node {
                     hir::ImplItemKind::Const(..) => true,
-                    hir::ImplItemKind::Method(ref sig, _) => {
-                        if generics_require_inlining(&sig.generics) ||
+                    hir::ImplItemKind::Method(..) => {
+                        if generics_require_inlining(&impl_item.generics) ||
                                 attr::requests_inline(&impl_item.attrs) {
                             true
                         } else {
@@ -293,9 +292,9 @@ impl<'a, 'tcx> ReachableContext<'a, 'tcx> {
                     hir::ImplItemKind::Const(_, body) => {
                         self.visit_nested_body(body);
                     }
-                    hir::ImplItemKind::Method(ref sig, body) => {
+                    hir::ImplItemKind::Method(_, body) => {
                         let did = self.tcx.hir.get_parent_did(search_item);
-                        if method_might_be_inlined(self.tcx, sig, impl_item, did) {
+                        if method_might_be_inlined(self.tcx, impl_item, did) {
                             self.visit_nested_body(body)
                         }
                     }
diff --git a/src/librustc/middle/resolve_lifetime.rs b/src/librustc/middle/resolve_lifetime.rs
index d0c5460fa9714..dc912f1c1b616 100644
--- a/src/librustc/middle/resolve_lifetime.rs
+++ b/src/librustc/middle/resolve_lifetime.rs
@@ -412,7 +412,7 @@ impl<'a, 'tcx> Visitor<'tcx> for LifetimeContext<'a, 'tcx> {
         if let hir::TraitItemKind::Method(ref sig, _) = trait_item.node {
             self.visit_early_late(
                 Some(self.hir_map.get_parent(trait_item.id)),
-                &sig.decl, &sig.generics,
+                &sig.decl, &trait_item.generics,
                 |this| intravisit::walk_trait_item(this, trait_item))
         } else {
             intravisit::walk_trait_item(self, trait_item);
@@ -423,7 +423,7 @@ impl<'a, 'tcx> Visitor<'tcx> for LifetimeContext<'a, 'tcx> {
         if let hir::ImplItemKind::Method(ref sig, _) = impl_item.node {
             self.visit_early_late(
                 Some(self.hir_map.get_parent(impl_item.id)),
-                &sig.decl, &sig.generics,
+                &sig.decl, &impl_item.generics,
                 |this| intravisit::walk_impl_item(this, impl_item))
         } else {
             intravisit::walk_impl_item(self, impl_item);
diff --git a/src/librustc_resolve/lib.rs b/src/librustc_resolve/lib.rs
index c7ec1d072d085..0799c4f719012 100644
--- a/src/librustc_resolve/lib.rs
+++ b/src/librustc_resolve/lib.rs
@@ -718,12 +718,10 @@ impl<'a, 'tcx> Visitor<'tcx> for Resolver<'a> {
                 _: Span,
                 node_id: NodeId) {
         let rib_kind = match function_kind {
-            FnKind::ItemFn(_, generics, ..) => {
-                self.visit_generics(generics);
+            FnKind::ItemFn(..) => {
                 ItemRibKind
             }
             FnKind::Method(_, sig, _, _) => {
-                self.visit_generics(&sig.generics);
                 MethodRibKind(!sig.decl.has_self())
             }
             FnKind::Closure(_) => ClosureRibKind(node_id),
@@ -1880,7 +1878,7 @@ impl<'a> Resolver<'a> {
                                 }
                                 TraitItemKind::Method(ref sig, _) => {
                                     let type_parameters =
-                                        HasTypeParameters(&sig.generics,
+                                        HasTypeParameters(&trait_item.generics,
                                                           MethodRibKind(!sig.decl.has_self()));
                                     this.with_type_parameter_rib(type_parameters, |this| {
                                         visit::walk_trait_item(this, trait_item)
@@ -2099,7 +2097,7 @@ impl<'a> Resolver<'a> {
                                         // We also need a new scope for the method-
                                         // specific type parameters.
                                         let type_parameters =
-                                            HasTypeParameters(&sig.generics,
+                                            HasTypeParameters(&impl_item.generics,
                                                             MethodRibKind(!sig.decl.has_self()));
                                         this.with_type_parameter_rib(type_parameters, |this| {
                                             visit::walk_impl_item(this, impl_item);
diff --git a/src/librustc_save_analysis/dump_visitor.rs b/src/librustc_save_analysis/dump_visitor.rs
index 3e730cf836523..c57d5305d807a 100644
--- a/src/librustc_save_analysis/dump_visitor.rs
+++ b/src/librustc_save_analysis/dump_visitor.rs
@@ -354,23 +354,24 @@ impl<'l, 'tcx: 'l, 'll, O: DumpOutput + 'll> DumpVisitor<'l, 'tcx, 'll, O> {
                       body: Option<&'l ast::Block>,
                       id: ast::NodeId,
                       name: ast::Ident,
+                      generics: &'l ast::Generics,
                       vis: ast::Visibility,
                       span: Span) {
         debug!("process_method: {}:{}", id, name);
 
         if let Some(mut method_data) = self.save_ctxt.get_method_data(id, name.name, span) {
 
-            let sig_str = ::make_signature(&sig.decl, &sig.generics);
+            let sig_str = ::make_signature(&sig.decl, &generics);
             if body.is_some() {
                 self.nest_tables(id, |v| {
                     v.process_formals(&sig.decl.inputs, &method_data.qualname)
                 });
             }
 
-            self.process_generic_params(&sig.generics, span, &method_data.qualname, id);
+            self.process_generic_params(&generics, span, &method_data.qualname, id);
 
             method_data.value = sig_str;
-            method_data.sig = sig::method_signature(id, name, sig, &self.save_ctxt);
+            method_data.sig = sig::method_signature(id, name, generics, sig, &self.save_ctxt);
             self.dumper.dump_def(vis == ast::Visibility::Public, method_data);
         }
 
@@ -1007,6 +1008,7 @@ impl<'l, 'tcx: 'l, 'll, O: DumpOutput + 'll> DumpVisitor<'l, 'tcx, 'll, O> {
                                     body.as_ref().map(|x| &**x),
                                     trait_item.id,
                                     trait_item.ident,
+                                    &trait_item.generics,
                                     ast::Visibility::Public,
                                     trait_item.span);
             }
@@ -1066,6 +1068,7 @@ impl<'l, 'tcx: 'l, 'll, O: DumpOutput + 'll> DumpVisitor<'l, 'tcx, 'll, O> {
                                     Some(body),
                                     impl_item.id,
                                     impl_item.ident,
+                                    &impl_item.generics,
                                     impl_item.vis.clone(),
                                     impl_item.span);
             }
diff --git a/src/librustc_save_analysis/sig.rs b/src/librustc_save_analysis/sig.rs
index 47e5ad6c01088..88f574d513bd8 100644
--- a/src/librustc_save_analysis/sig.rs
+++ b/src/librustc_save_analysis/sig.rs
@@ -77,13 +77,14 @@ pub fn variant_signature(variant: &ast::Variant, scx: &SaveContext) -> Option<Si
 
 pub fn method_signature(id: NodeId,
                         ident: ast::Ident,
+                        generics: &ast::Generics,
                         m: &ast::MethodSig,
                         scx: &SaveContext)
                         -> Option<Signature> {
     if !scx.config.signatures {
         return None;
     }
-    make_method_signature(id, ident, m, scx).ok()
+    make_method_signature(id, ident, generics, m, scx).ok()
 }
 
 pub fn assoc_const_signature(id: NodeId,
@@ -895,6 +896,7 @@ fn make_assoc_const_signature(id: NodeId,
 
 fn make_method_signature(id: NodeId,
                          ident: ast::Ident,
+                         generics: &ast::Generics,
                          m: &ast::MethodSig,
                          scx: &SaveContext)
                          -> Result {
@@ -915,7 +917,7 @@ fn make_method_signature(id: NodeId,
 
     let mut sig = name_and_generics(text,
                                     0,
-                                    &m.generics,
+                                    generics,
                                     id,
                                     ident,
                                     scx)?;
diff --git a/src/librustc_typeck/check/compare_method.rs b/src/librustc_typeck/check/compare_method.rs
index b21d48886120c..554a858bcc173 100644
--- a/src/librustc_typeck/check/compare_method.rs
+++ b/src/librustc_typeck/check/compare_method.rs
@@ -568,15 +568,11 @@ fn compare_number_of_generics<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
     let num_trait_m_type_params = trait_m_generics.types.len();
     if num_impl_m_type_params != num_trait_m_type_params {
         let impl_m_node_id = tcx.hir.as_local_node_id(impl_m.def_id).unwrap();
-        let span = match tcx.hir.expect_impl_item(impl_m_node_id).node {
-            ImplItemKind::Method(ref impl_m_sig, _) => {
-                if impl_m_sig.generics.is_parameterized() {
-                    impl_m_sig.generics.span
-                } else {
-                    impl_m_span
-                }
-            }
-            _ => bug!("{:?} is not a method", impl_m),
+        let impl_m_item = tcx.hir.expect_impl_item(impl_m_node_id);
+        let span = if impl_m_item.generics.is_parameterized() {
+            impl_m_item.generics.span
+        } else {
+            impl_m_span
         };
 
         let mut err = struct_span_err!(tcx.sess,
diff --git a/src/librustc_typeck/collect.rs b/src/librustc_typeck/collect.rs
index a5b3f8cb806be..68ba1b4c44c81 100644
--- a/src/librustc_typeck/collect.rs
+++ b/src/librustc_typeck/collect.rs
@@ -261,19 +261,9 @@ fn type_param_predicates<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
 
     let item_node_id = tcx.hir.as_local_node_id(item_def_id).unwrap();
     let ast_generics = match tcx.hir.get(item_node_id) {
-        NodeTraitItem(item) => {
-            match item.node {
-                TraitItemKind::Method(ref sig, _) => &sig.generics,
-                _ => return result
-            }
-        }
+        NodeTraitItem(item) => &item.generics,
 
-        NodeImplItem(item) => {
-            match item.node {
-                ImplItemKind::Method(ref sig, _) => &sig.generics,
-                _ => return result
-            }
-        }
+        NodeImplItem(item) => &item.generics,
 
         NodeItem(item) => {
             match item.node {
@@ -818,12 +808,12 @@ fn has_late_bound_regions<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
     match node {
         hir_map::NodeTraitItem(item) => match item.node {
             hir::TraitItemKind::Method(ref sig, _) =>
-                has_late_bound_regions(tcx, &sig.generics, &sig.decl),
+                has_late_bound_regions(tcx, &item.generics, &sig.decl),
             _ => None,
         },
         hir_map::NodeImplItem(item) => match item.node {
             hir::ImplItemKind::Method(ref sig, _) =>
-                has_late_bound_regions(tcx, &sig.generics, &sig.decl),
+                has_late_bound_regions(tcx, &item.generics, &sig.decl),
             _ => None,
         },
         hir_map::NodeForeignItem(item) => match item.node {
@@ -881,19 +871,9 @@ fn generics_of<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
 
     let no_generics = hir::Generics::empty();
     let ast_generics = match node {
-        NodeTraitItem(item) => {
-            match item.node {
-                TraitItemKind::Method(ref sig, _) => &sig.generics,
-                _ => &no_generics
-            }
-        }
+        NodeTraitItem(item) => &item.generics,
 
-        NodeImplItem(item) => {
-            match item.node {
-                ImplItemKind::Method(ref sig, _) => &sig.generics,
-                _ => &no_generics
-            }
-        }
+        NodeImplItem(item) => &item.generics,
 
         NodeItem(item) => {
             match item.node {
@@ -1353,19 +1333,9 @@ fn explicit_predicates_of<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
     let icx = ItemCtxt::new(tcx, def_id);
     let no_generics = hir::Generics::empty();
     let ast_generics = match node {
-        NodeTraitItem(item) => {
-            match item.node {
-                TraitItemKind::Method(ref sig, _) => &sig.generics,
-                _ => &no_generics
-            }
-        }
+        NodeTraitItem(item) => &item.generics,
 
-        NodeImplItem(item) => {
-            match item.node {
-                ImplItemKind::Method(ref sig, _) => &sig.generics,
-                _ => &no_generics
-            }
-        }
+        NodeImplItem(item) => &item.generics,
 
         NodeItem(item) => {
             match item.node {
diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index ad171c4babbce..4e8bf5f91092b 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -1141,13 +1141,13 @@ pub struct Method {
     pub abi: Abi,
 }
 
-impl<'a> Clean<Method> for (&'a hir::MethodSig, hir::BodyId) {
+impl<'a> Clean<Method> for (&'a hir::MethodSig, &'a hir::Generics, hir::BodyId) {
     fn clean(&self, cx: &DocContext) -> Method {
         Method {
-            generics: self.0.generics.clean(cx),
+            generics: self.1.clean(cx),
             unsafety: self.0.unsafety,
             constness: self.0.constness,
-            decl: (&*self.0.decl, self.1).clean(cx),
+            decl: (&*self.0.decl, self.2).clean(cx),
             abi: self.0.abi
         }
     }
@@ -1380,13 +1380,13 @@ impl Clean<Item> for hir::TraitItem {
                                     default.map(|e| print_const_expr(cx, e)))
             }
             hir::TraitItemKind::Method(ref sig, hir::TraitMethod::Provided(body)) => {
-                MethodItem((sig, body).clean(cx))
+                MethodItem((sig, &self.generics, body).clean(cx))
             }
             hir::TraitItemKind::Method(ref sig, hir::TraitMethod::Required(ref names)) => {
                 TyMethodItem(TyMethod {
                     unsafety: sig.unsafety.clone(),
                     decl: (&*sig.decl, &names[..]).clean(cx),
-                    generics: sig.generics.clean(cx),
+                    generics: self.generics.clean(cx),
                     abi: sig.abi
                 })
             }
@@ -1415,7 +1415,7 @@ impl Clean<Item> for hir::ImplItem {
                                     Some(print_const_expr(cx, expr)))
             }
             hir::ImplItemKind::Method(ref sig, body) => {
-                MethodItem((sig, body).clean(cx))
+                MethodItem((sig, &self.generics, body).clean(cx))
             }
             hir::ImplItemKind::Type(ref ty) => TypedefItem(Typedef {
                 type_: ty.clean(cx),
diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
index f445def9e0335..b985ac78056a4 100644
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -1178,7 +1178,6 @@ pub struct MethodSig {
     pub constness: Spanned<Constness>,
     pub abi: Abi,
     pub decl: P<FnDecl>,
-    pub generics: Generics,
 }
 
 /// Represents an item declaration within a trait declaration,
@@ -1190,6 +1189,7 @@ pub struct TraitItem {
     pub id: NodeId,
     pub ident: Ident,
     pub attrs: Vec<Attribute>,
+    pub generics: Generics,
     pub node: TraitItemKind,
     pub span: Span,
     /// See `Item::tokens` for what this is
@@ -1211,6 +1211,7 @@ pub struct ImplItem {
     pub vis: Visibility,
     pub defaultness: Defaultness,
     pub attrs: Vec<Attribute>,
+    pub generics: Generics,
     pub node: ImplItemKind,
     pub span: Span,
     /// See `Item::tokens` for what this is
diff --git a/src/libsyntax/ext/placeholders.rs b/src/libsyntax/ext/placeholders.rs
index 4fc2b92d3cd52..2f5b386346bc8 100644
--- a/src/libsyntax/ext/placeholders.rs
+++ b/src/libsyntax/ext/placeholders.rs
@@ -32,6 +32,7 @@ pub fn placeholder(kind: ExpansionKind, id: ast::NodeId) -> Expansion {
 
     let ident = keywords::Invalid.ident();
     let attrs = Vec::new();
+    let generics = ast::Generics::default();
     let vis = ast::Visibility::Inherited;
     let span = DUMMY_SP;
     let expr_placeholder = || P(ast::Expr {
@@ -49,12 +50,12 @@ pub fn placeholder(kind: ExpansionKind, id: ast::NodeId) -> Expansion {
             tokens: None,
         }))),
         ExpansionKind::TraitItems => Expansion::TraitItems(SmallVector::one(ast::TraitItem {
-            id, span, ident, attrs,
+            id, span, ident, attrs, generics,
             node: ast::TraitItemKind::Macro(mac_placeholder()),
             tokens: None,
         })),
         ExpansionKind::ImplItems => Expansion::ImplItems(SmallVector::one(ast::ImplItem {
-            id, span, ident, vis, attrs,
+            id, span, ident, vis, attrs, generics,
             node: ast::ImplItemKind::Macro(mac_placeholder()),
             defaultness: ast::Defaultness::Final,
             tokens: None,
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index 9060a613bc132..326f8cef6b3ea 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -1526,7 +1526,7 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
                 span: Span,
                 _node_id: NodeId) {
         // check for const fn declarations
-        if let FnKind::ItemFn(_, _, _, Spanned { node: ast::Constness::Const, .. }, _, _, _) =
+        if let FnKind::ItemFn(_, _, Spanned { node: ast::Constness::Const, .. }, _, _, _) =
             fn_kind {
             gate_feature_post!(&self, const_fn, span, "const fn is unstable");
         }
@@ -1536,7 +1536,7 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
         // point.
 
         match fn_kind {
-            FnKind::ItemFn(_, _, _, _, abi, _, _) |
+            FnKind::ItemFn(_, _, _, abi, _, _) |
             FnKind::Method(_, &ast::MethodSig { abi, .. }, _, _) => {
                 self.check_abi(abi, span);
             }
diff --git a/src/libsyntax/fold.rs b/src/libsyntax/fold.rs
index d7d491db71f05..518386a2ad29c 100644
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -943,6 +943,7 @@ pub fn noop_fold_trait_item<T: Folder>(i: TraitItem, folder: &mut T)
         id: folder.new_id(i.id),
         ident: folder.fold_ident(i.ident),
         attrs: fold_attrs(i.attrs, folder),
+        generics: folder.fold_generics(i.generics),
         node: match i.node {
             TraitItemKind::Const(ty, default) => {
                 TraitItemKind::Const(folder.fold_ty(ty),
@@ -972,6 +973,7 @@ pub fn noop_fold_impl_item<T: Folder>(i: ImplItem, folder: &mut T)
         vis: folder.fold_vis(i.vis),
         ident: folder.fold_ident(i.ident),
         attrs: fold_attrs(i.attrs, folder),
+        generics: folder.fold_generics(i.generics),
         defaultness: i.defaultness,
         node: match i.node  {
             ast::ImplItemKind::Const(ty, expr) => {
@@ -1074,7 +1076,6 @@ pub fn noop_fold_foreign_item<T: Folder>(ni: ForeignItem, folder: &mut T) -> For
 
 pub fn noop_fold_method_sig<T: Folder>(sig: MethodSig, folder: &mut T) -> MethodSig {
     MethodSig {
-        generics: folder.fold_generics(sig.generics),
         abi: sig.abi,
         unsafety: sig.unsafety,
         constness: sig.constness,
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index 8fd2bad4e44a6..07fa2a4d1a77c 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -1287,10 +1287,10 @@ impl<'a> Parser<'a> {
                          mut attrs: Vec<Attribute>) -> PResult<'a, TraitItem> {
         let lo = self.span;
 
-        let (name, node) = if self.eat_keyword(keywords::Type) {
+        let (name, node, generics) = if self.eat_keyword(keywords::Type) {
             let TyParam {ident, bounds, default, ..} = self.parse_ty_param(vec![])?;
             self.expect(&token::Semi)?;
-            (ident, TraitItemKind::Type(bounds, default))
+            (ident, TraitItemKind::Type(bounds, default), ast::Generics::default())
         } else if self.is_const_item() {
             self.expect_keyword(keywords::Const)?;
             let ident = self.parse_ident()?;
@@ -1305,7 +1305,7 @@ impl<'a> Parser<'a> {
                 self.expect(&token::Semi)?;
                 None
             };
-            (ident, TraitItemKind::Const(ty, default))
+            (ident, TraitItemKind::Const(ty, default), ast::Generics::default())
         } else if self.token.is_path_start() {
             // trait item macro.
             // code copied from parse_macro_use_or_failure... abstraction!
@@ -1328,7 +1328,7 @@ impl<'a> Parser<'a> {
             }
 
             let mac = respan(lo.to(self.prev_span), Mac_ { path: pth, tts: tts });
-            (keywords::Invalid.ident(), ast::TraitItemKind::Macro(mac))
+            (keywords::Invalid.ident(), ast::TraitItemKind::Macro(mac), ast::Generics::default())
         } else {
             let (constness, unsafety, abi) = self.parse_fn_front_matter()?;
 
@@ -1341,13 +1341,12 @@ impl<'a> Parser<'a> {
                 // definition...
                 p.parse_arg_general(false)
             })?;
-
             generics.where_clause = self.parse_where_clause()?;
+
             let sig = ast::MethodSig {
                 unsafety,
                 constness,
                 decl: d,
-                generics,
                 abi,
             };
 
@@ -1370,13 +1369,14 @@ impl<'a> Parser<'a> {
                     return Err(self.fatal(&format!("expected `;` or `{{`, found `{}`", token_str)));
                 }
             };
-            (ident, ast::TraitItemKind::Method(sig, body))
+            (ident, ast::TraitItemKind::Method(sig, body), generics)
         };
 
         Ok(TraitItem {
             id: ast::DUMMY_NODE_ID,
             ident: name,
             attrs,
+            generics,
             node,
             span: lo.to(self.prev_span),
             tokens: None,
@@ -4901,12 +4901,12 @@ impl<'a> Parser<'a> {
         let lo = self.span;
         let vis = self.parse_visibility(false)?;
         let defaultness = self.parse_defaultness()?;
-        let (name, node) = if self.eat_keyword(keywords::Type) {
+        let (name, node, generics) = if self.eat_keyword(keywords::Type) {
             let name = self.parse_ident()?;
             self.expect(&token::Eq)?;
             let typ = self.parse_ty()?;
             self.expect(&token::Semi)?;
-            (name, ast::ImplItemKind::Type(typ))
+            (name, ast::ImplItemKind::Type(typ), ast::Generics::default())
         } else if self.is_const_item() {
             self.expect_keyword(keywords::Const)?;
             let name = self.parse_ident()?;
@@ -4915,11 +4915,11 @@ impl<'a> Parser<'a> {
             self.expect(&token::Eq)?;
             let expr = self.parse_expr()?;
             self.expect(&token::Semi)?;
-            (name, ast::ImplItemKind::Const(typ, expr))
+            (name, ast::ImplItemKind::Const(typ, expr), ast::Generics::default())
         } else {
-            let (name, inner_attrs, node) = self.parse_impl_method(&vis, at_end)?;
+            let (name, inner_attrs, generics, node) = self.parse_impl_method(&vis, at_end)?;
             attrs.extend(inner_attrs);
-            (name, node)
+            (name, node, generics)
         };
 
         Ok(ImplItem {
@@ -4929,6 +4929,7 @@ impl<'a> Parser<'a> {
             vis,
             defaultness,
             attrs,
+            generics,
             node,
             tokens: None,
         })
@@ -4986,7 +4987,8 @@ impl<'a> Parser<'a> {
 
     /// Parse a method or a macro invocation in a trait impl.
     fn parse_impl_method(&mut self, vis: &Visibility, at_end: &mut bool)
-                         -> PResult<'a, (Ident, Vec<ast::Attribute>, ast::ImplItemKind)> {
+                         -> PResult<'a, (Ident, Vec<ast::Attribute>, ast::Generics,
+                             ast::ImplItemKind)> {
         // code copied from parse_macro_use_or_failure... abstraction!
         if self.token.is_path_start() {
             // Method macro.
@@ -5013,7 +5015,8 @@ impl<'a> Parser<'a> {
             }
 
             let mac = respan(lo.to(self.prev_span), Mac_ { path: pth, tts: tts });
-            Ok((keywords::Invalid.ident(), vec![], ast::ImplItemKind::Macro(mac)))
+            Ok((keywords::Invalid.ident(), vec![], ast::Generics::default(),
+                ast::ImplItemKind::Macro(mac)))
         } else {
             let (constness, unsafety, abi) = self.parse_fn_front_matter()?;
             let ident = self.parse_ident()?;
@@ -5022,8 +5025,7 @@ impl<'a> Parser<'a> {
             generics.where_clause = self.parse_where_clause()?;
             *at_end = true;
             let (inner_attrs, body) = self.parse_inner_attrs_and_block()?;
-            Ok((ident, inner_attrs, ast::ImplItemKind::Method(ast::MethodSig {
-                generics,
+            Ok((ident, inner_attrs, generics, ast::ImplItemKind::Method(ast::MethodSig {
                 abi,
                 unsafety,
                 constness,
diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index 02f871c58c73c..b9a7fa04a0611 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -1525,6 +1525,7 @@ impl<'a> State<'a> {
 
     pub fn print_method_sig(&mut self,
                             ident: ast::Ident,
+                            generics: &ast::Generics,
                             m: &ast::MethodSig,
                             vis: &ast::Visibility)
                             -> io::Result<()> {
@@ -1533,7 +1534,7 @@ impl<'a> State<'a> {
                       m.constness.node,
                       m.abi,
                       Some(ident),
-                      &m.generics,
+                      &generics,
                       vis)
     }
 
@@ -1553,7 +1554,7 @@ impl<'a> State<'a> {
                 if body.is_some() {
                     self.head("")?;
                 }
-                self.print_method_sig(ti.ident, sig, &ast::Visibility::Inherited)?;
+                self.print_method_sig(ti.ident, &ti.generics, sig, &ast::Visibility::Inherited)?;
                 if let Some(ref body) = *body {
                     self.nbsp()?;
                     self.print_block_with_attrs(body, &ti.attrs)?;
@@ -1592,7 +1593,7 @@ impl<'a> State<'a> {
             }
             ast::ImplItemKind::Method(ref sig, ref body) => {
                 self.head("")?;
-                self.print_method_sig(ii.ident, sig, &ii.vis)?;
+                self.print_method_sig(ii.ident, &ii.generics, sig, &ii.vis)?;
                 self.nbsp()?;
                 self.print_block_with_attrs(body, &ii.attrs)?;
             }
diff --git a/src/libsyntax/visit.rs b/src/libsyntax/visit.rs
index 521c6030eba2c..078a63cba20b8 100644
--- a/src/libsyntax/visit.rs
+++ b/src/libsyntax/visit.rs
@@ -31,7 +31,7 @@ use codemap::Spanned;
 #[derive(Copy, Clone, PartialEq, Eq)]
 pub enum FnKind<'a> {
     /// fn foo() or extern "Abi" fn foo()
-    ItemFn(Ident, &'a Generics, Unsafety, Spanned<Constness>, Abi, &'a Visibility, &'a Block),
+    ItemFn(Ident, Unsafety, Spanned<Constness>, Abi, &'a Visibility, &'a Block),
 
     /// fn foo(&self)
     Method(Ident, &'a MethodSig, Option<&'a Visibility>, &'a Block),
@@ -247,7 +247,8 @@ pub fn walk_item<'a, V: Visitor<'a>>(visitor: &mut V, item: &'a Item) {
             visitor.visit_expr(expr);
         }
         ItemKind::Fn(ref declaration, unsafety, constness, abi, ref generics, ref body) => {
-            visitor.visit_fn(FnKind::ItemFn(item.ident, generics, unsafety,
+            visitor.visit_generics(generics);
+            visitor.visit_fn(FnKind::ItemFn(item.ident, unsafety,
                                             constness, abi, &item.vis, body),
                              declaration,
                              item.span,
@@ -538,13 +539,11 @@ pub fn walk_fn<'a, V>(visitor: &mut V, kind: FnKind<'a>, declaration: &'a FnDecl
     where V: Visitor<'a>,
 {
     match kind {
-        FnKind::ItemFn(_, generics, _, _, _, _, body) => {
-            visitor.visit_generics(generics);
+        FnKind::ItemFn(_, _, _, _, _, body) => {
             walk_fn_decl(visitor, declaration);
             visitor.visit_block(body);
         }
-        FnKind::Method(_, sig, _, body) => {
-            visitor.visit_generics(&sig.generics);
+        FnKind::Method(_, _, _, body) => {
             walk_fn_decl(visitor, declaration);
             visitor.visit_block(body);
         }
@@ -558,13 +557,13 @@ pub fn walk_fn<'a, V>(visitor: &mut V, kind: FnKind<'a>, declaration: &'a FnDecl
 pub fn walk_trait_item<'a, V: Visitor<'a>>(visitor: &mut V, trait_item: &'a TraitItem) {
     visitor.visit_ident(trait_item.span, trait_item.ident);
     walk_list!(visitor, visit_attribute, &trait_item.attrs);
+    visitor.visit_generics(&trait_item.generics);
     match trait_item.node {
         TraitItemKind::Const(ref ty, ref default) => {
             visitor.visit_ty(ty);
             walk_list!(visitor, visit_expr, default);
         }
         TraitItemKind::Method(ref sig, None) => {
-            visitor.visit_generics(&sig.generics);
             walk_fn_decl(visitor, &sig.decl);
         }
         TraitItemKind::Method(ref sig, Some(ref body)) => {
@@ -585,6 +584,7 @@ pub fn walk_impl_item<'a, V: Visitor<'a>>(visitor: &mut V, impl_item: &'a ImplIt
     visitor.visit_vis(&impl_item.vis);
     visitor.visit_ident(impl_item.span, impl_item.ident);
     walk_list!(visitor, visit_attribute, &impl_item.attrs);
+    visitor.visit_generics(&impl_item.generics);
     match impl_item.node {
         ImplItemKind::Const(ref ty, ref expr) => {
             visitor.visit_ty(ty);
diff --git a/src/libsyntax_ext/deriving/generic/mod.rs b/src/libsyntax_ext/deriving/generic/mod.rs
index 5c1ca19d635f7..18897047538f1 100644
--- a/src/libsyntax_ext/deriving/generic/mod.rs
+++ b/src/libsyntax_ext/deriving/generic/mod.rs
@@ -506,6 +506,7 @@ impl<'a> TraitDef<'a> {
                 vis: ast::Visibility::Inherited,
                 defaultness: ast::Defaultness::Final,
                 attrs: Vec::new(),
+                generics: Generics::default(),
                 node: ast::ImplItemKind::Type(type_def.to_ty(cx, self.span, type_ident, generics)),
                 tokens: None,
             }
@@ -921,12 +922,12 @@ impl<'a> MethodDef<'a> {
         ast::ImplItem {
             id: ast::DUMMY_NODE_ID,
             attrs: self.attributes.clone(),
+            generics: fn_generics,
             span: trait_.span,
             vis: ast::Visibility::Inherited,
             defaultness: ast::Defaultness::Final,
             ident: method_ident,
             node: ast::ImplItemKind::Method(ast::MethodSig {
-                                                generics: fn_generics,
                                                 abi,
                                                 unsafety,
                                                 constness:
diff --git a/src/test/incremental/hashes/inherent_impls.rs b/src/test/incremental/hashes/inherent_impls.rs
index 5067b571ee68b..9351a4b05f151 100644
--- a/src/test/incremental/hashes/inherent_impls.rs
+++ b/src/test/incremental/hashes/inherent_impls.rs
@@ -370,9 +370,7 @@ impl Foo {
 #[rustc_metadata_clean(cfg="cfail2")]
 #[rustc_metadata_clean(cfg="cfail3")]
 impl Foo {
-    // FIXME(michaelwoerister): This is curious but an unused lifetime parameter doesn't seem to
-    // show up in any of the derived data structures.
-    #[rustc_clean(cfg="cfail2", except="Hir,HirBody")]
+    #[rustc_clean(cfg="cfail2", except="Hir,HirBody,TypeckTables")]
     #[rustc_clean(cfg="cfail3")]
     #[rustc_metadata_clean(cfg="cfail2")]
     #[rustc_metadata_clean(cfg="cfail3")]
@@ -395,7 +393,7 @@ impl Foo {
 impl Foo {
     #[rustc_clean(
         cfg="cfail2",
-        except="Hir,HirBody,GenericsOfItem,PredicatesOfItem,TypeOfItem",
+        except="Hir,HirBody,GenericsOfItem,PredicatesOfItem,TypeOfItem,TypeckTables",
     )]
     #[rustc_clean(cfg="cfail3")]
     #[rustc_metadata_dirty(cfg="cfail2")]
@@ -441,7 +439,8 @@ impl Foo {
 #[rustc_metadata_clean(cfg="cfail2")]
 #[rustc_metadata_clean(cfg="cfail3")]
 impl Foo {
-    #[rustc_clean(cfg="cfail2", except="Hir,HirBody,GenericsOfItem,PredicatesOfItem,TypeOfItem")]
+    #[rustc_clean(cfg="cfail2", except="Hir,HirBody,GenericsOfItem,PredicatesOfItem,\
+                                        TypeOfItem,TypeckTables")]
     #[rustc_clean(cfg="cfail3")]
     #[rustc_metadata_dirty(cfg="cfail2")]
     #[rustc_metadata_clean(cfg="cfail3")]
@@ -462,7 +461,7 @@ impl Foo {
 #[rustc_metadata_clean(cfg="cfail2")]
 #[rustc_metadata_clean(cfg="cfail3")]
 impl Foo {
-    #[rustc_clean(cfg="cfail2", except="Hir,HirBody,PredicatesOfItem")]
+    #[rustc_clean(cfg="cfail2", except="Hir,HirBody,PredicatesOfItem,TypeckTables")]
     #[rustc_clean(cfg="cfail3")]
     #[rustc_metadata_dirty(cfg="cfail2")]
     #[rustc_metadata_clean(cfg="cfail3")]
diff --git a/src/tools/toolstate.toml b/src/tools/toolstate.toml
index e62597c52169f..9dd420c14586d 100644
--- a/src/tools/toolstate.toml
+++ b/src/tools/toolstate.toml
@@ -26,10 +26,10 @@
 miri = "Broken"
 
 # ping @Manishearth @llogiq @mcarton @oli-obk
-clippy = "Compiling"
+clippy = "Broken"
 
 # ping @nrc
-rls = "Testing"
+rls = "Broken"
 
 # ping @nrc
-rustfmt = "Testing"
+rustfmt = "Broken"