diff --git a/Cargo.lock b/Cargo.lock
index d9fc1fdf1bc..98d9d1a5c93 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -394,7 +394,7 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_cratesio_shim"
-version = "113.0.0"
+version = "121.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -404,7 +404,7 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_data_structures"
-version = "113.0.0"
+version = "121.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -412,21 +412,21 @@ dependencies = [
  "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot_core 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_cratesio_shim 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-serialize 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_cratesio_shim 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-serialize 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "stable_deref_trait 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rustc-ap-rustc_errors"
-version = "113.0.0"
+version = "121.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "atty 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_data_structures 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-serialize 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-syntax_pos 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_data_structures 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-serialize 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-syntax_pos 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "termcolor 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -434,44 +434,44 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_target"
-version = "113.0.0"
+version = "121.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_cratesio_shim 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-serialize 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_cratesio_shim 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-serialize 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rustc-ap-serialize"
-version = "113.0.0"
+version = "121.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "rustc-ap-syntax"
-version = "113.0.0"
+version = "121.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_data_structures 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_errors 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_target 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-serialize 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-syntax_pos 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_data_structures 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_errors 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_target 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-serialize 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-syntax_pos 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "scoped-tls 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rustc-ap-syntax_pos"
-version = "113.0.0"
+version = "121.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rustc-ap-rustc_data_structures 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-serialize 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_data_structures 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-serialize 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "scoped-tls 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -498,8 +498,8 @@ dependencies = [
  "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_target 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-syntax 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_target 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-syntax 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.16 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -848,13 +848,13 @@ dependencies = [
 "checksum regex 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "aec3f58d903a7d2a9dc2bf0e41a746f4530e0cab6b615494e058f67a3ef947fb"
 "checksum regex-syntax 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "bd90079345f4a4c3409214734ae220fd773c6f2e8a543d07370c6c1c369cfbfb"
 "checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
-"checksum rustc-ap-rustc_cratesio_shim 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a01334797c5c4cf56cc40bb9636d7b4c4a076665b9b9b7f100fd666cf0a02ffc"
-"checksum rustc-ap-rustc_data_structures 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "03d6f8f7da0de905f6ef80dc14dce3bbc372430622b6aeb421cf13190bc70e8a"
-"checksum rustc-ap-rustc_errors 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3dfd6183804a685c48601651d8c8c7b0daa8f83b0b5e24edfbcb6a0337085127"
-"checksum rustc-ap-rustc_target 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5f223157f51bf0e0621bef099de862468892ee4c4b83056f48f63e1bc00ccb72"
-"checksum rustc-ap-serialize 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2104a55a87d65cba8a845656f1f19a35da52af403863cd2a4bd5876ba522d879"
-"checksum rustc-ap-syntax 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b50671adb9b0a7c57a4690ac6a40cb614879f543b64aada42f55b66212492323"
-"checksum rustc-ap-syntax_pos 113.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "55793c2a775230c42661194c48d44b35d4c8439d79ad8528e56651e854c48c63"
+"checksum rustc-ap-rustc_cratesio_shim 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9ef7efbe957ee3b1ebecb6a260f7b0bad2286c9c20da614eab669a74da5b5fa7"
+"checksum rustc-ap-rustc_data_structures 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d2b168f552c0d3ee3cca0e1ec693649d05d6ea4c0203fe292edc40f82db96dac"
+"checksum rustc-ap-rustc_errors 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9c5fc02aa44c4d4d42c9d1e026f526f9d2db01dd1387161c9bcae468a7e147c2"
+"checksum rustc-ap-rustc_target 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e309c073c612668f0a7b87719073b904c22e8e6df99ee40309eef7f5ec2e14f8"
+"checksum rustc-ap-serialize 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ef7721a58ba33a1aa296b527348cefc6170c66ce2bbc248b8ea0b2b49ebbc457"
+"checksum rustc-ap-syntax 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0d22e392afa778785b1ce243b006b7fde6708cd8dbc332a33821169626c4e5a6"
+"checksum rustc-ap-syntax_pos 121.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d897ddf75e2d60a4c78edccf84c072b0905ee0acb6dd566882aaca2103594419"
 "checksum rustc-demangle 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "11fb43a206a04116ffd7cfcf9bcb941f8eb6cc7ff667272246b0a1c74259a3cb"
 "checksum same-file 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d931a44fdaa43b8637009e7632a02adc4f2b2e0733c08caa4cf00e8da4a117a7"
 "checksum scoped-tls 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8674d439c964889e2476f474a3bf198cc9e199e77499960893bac5de7e9218a4"
diff --git a/Cargo.toml b/Cargo.toml
index e51c195da71..0bdbd2b4c95 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -46,8 +46,8 @@ env_logger = "0.5"
 getopts = "0.2"
 derive-new = "0.5"
 cargo_metadata = "0.5.1"
-rustc-ap-rustc_target = "113.0.0"
-rustc-ap-syntax = "113.0.0"
+rustc-ap-rustc_target = "121.0.0"
+rustc-ap-syntax = "121.0.0"
 failure = "0.1.1"
 
 [dev-dependencies]
diff --git a/src/attr.rs b/src/attr.rs
index 83de61c5e25..894b99815b4 100644
--- a/src/attr.rs
+++ b/src/attr.rs
@@ -200,9 +200,9 @@ fn allow_mixed_tactic_for_nested_metaitem_list(list: &[ast::NestedMetaItem]) ->
 impl Rewrite for ast::MetaItem {
     fn rewrite(&self, context: &RewriteContext, shape: Shape) -> Option<String> {
         Some(match self.node {
-            ast::MetaItemKind::Word => String::from(&*self.ident.name.as_str()),
+            ast::MetaItemKind::Word => String::from(&*self.name().as_str()),
             ast::MetaItemKind::List(ref list) => {
-                let name = self.ident.name.as_str();
+                let name = self.name().as_str();
                 let item_shape = match context.config.indent_style() {
                     IndentStyle::Block => shape
                         .block_indent(context.config.tab_spaces())
@@ -260,7 +260,7 @@ impl Rewrite for ast::MetaItem {
                 }
             }
             ast::MetaItemKind::NameValue(ref literal) => {
-                let name = self.ident.name.as_str();
+                let name = self.name().as_str();
                 // 3 = ` = `
                 let lit_shape = shape.shrink_left(name.len() + 3)?;
                 // `rewrite_literal` returns `None` when `literal` exceeds max
diff --git a/src/utils.rs b/src/utils.rs
index c1d614e885a..f2bdc45b831 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -211,9 +211,9 @@ pub fn last_line_extendable(s: &str) -> bool {
 #[inline]
 fn is_skip(meta_item: &MetaItem) -> bool {
     match meta_item.node {
-        MetaItemKind::Word => meta_item.ident.name == SKIP_ANNOTATION,
+        MetaItemKind::Word => meta_item.name() == SKIP_ANNOTATION,
         MetaItemKind::List(ref l) => {
-            meta_item.ident.name == "cfg_attr" && l.len() == 2 && is_skip_nested(&l[1])
+            meta_item.name() == "cfg_attr" && l.len() == 2 && is_skip_nested(&l[1])
         }
         _ => false,
     }