diff --git a/Cargo.lock b/Cargo.lock
index 2fcf55a905..3473d54726 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -457,21 +457,13 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-queue"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c979cd6cfe72335896575c6b5688da489e420d36a27a0b9eb0c73db574b4a4b"
-dependencies = [
- "crossbeam-utils 0.6.6",
-]
-
-[[package]]
-name = "crossbeam-utils"
-version = "0.6.6"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04973fa96e96579258a5091af6003abde64af786b860f18622b82e026cca60e6"
+checksum = "774ba60a54c213d409d5353bda12d49cd68d14e45036a285234c8d6f91f92570"
 dependencies = [
  "cfg-if 0.1.10",
- "lazy_static",
+ "crossbeam-utils 0.7.2",
+ "maybe-uninit",
 ]
 
 [[package]]
@@ -1371,11 +1363,14 @@ dependencies = [
 
 [[package]]
 name = "measureme"
-version = "9.0.0"
+version = "9.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22bf8d885d073610aee20e7fa205c4341ed32a761dbde96da5fd96301a8d3e82"
+checksum = "4a98e07fe802486895addb2b5467f33f205e82c426bfaf350f5d8109b137767c"
 dependencies = [
+ "log",
+ "memmap",
  "parking_lot",
+ "perf-event-open-sys",
  "rustc-hash",
  "smallvec",
 ]
@@ -1386,6 +1381,16 @@ version = "2.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
+[[package]]
+name = "memmap"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6585fd95e7bb50d6cc31e20d4cf9afb4e2ba16c5846fc76793f11218da9c475b"
+dependencies = [
+ "libc",
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "memoffset"
 version = "0.5.6"
@@ -1612,6 +1617,15 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
+[[package]]
+name = "perf-event-open-sys"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce9bedf5da2c234fdf2391ede2b90fabf585355f33100689bc364a3ea558561a"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "pin-project-lite"
 version = "0.1.11"
@@ -1739,9 +1753,9 @@ dependencies = [
 
 [[package]]
 name = "racer"
-version = "2.1.44"
+version = "2.1.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7972a124e2b24dce35eb19f81eced829faec0e8227a7d744bbb1089934d05399"
+checksum = "15408926f6207643150e0fc2c54a75a689b192df03ac6c59d42ea99c6782c7f7"
 dependencies = [
  "bitflags",
  "clap",
@@ -2062,18 +2076,19 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_arena"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93575affa286089b92c8208aea4e60fe9fdd251a619a09b566d6e4e2cc123212"
+checksum = "259cca0e975ecb05fd289ace45280c30ff792efc04e856a7f18b7fc86a3cb610"
 dependencies = [
+ "rustc-ap-rustc_data_structures",
  "smallvec",
 ]
 
 [[package]]
 name = "rustc-ap-rustc_ast"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c700f2d3b25aa8d6446dd2936048737b08b2d547bd86e2a70afa9fee4e9c522"
+checksum = "bb9be435d50c88e94bbad6ea468c8680b52c5043bb298ab8058d05251717f8f8"
 dependencies = [
  "bitflags",
  "rustc-ap-rustc_data_structures",
@@ -2088,9 +2103,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_ast_passes"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e01f63e5259ee397bbe2e395d34a2e6b6b24f10c184d30fbbee1dcd7117f4f3"
+checksum = "75246dd1a95a57f7767e53bde3971baa2d948078e180564709f5ea46cf863ddd"
 dependencies = [
  "itertools 0.9.0",
  "rustc-ap-rustc_ast",
@@ -2107,9 +2122,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_ast_pretty"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99d644c69c55deb24257cb0cb5261265fe5134f6f545e9062e1c18b07e422c68"
+checksum = "79bede0b44bed453fd0034b7ba492840391f6486bf3e17a1af12922f0b98d4cc"
 dependencies = [
  "rustc-ap-rustc_ast",
  "rustc-ap-rustc_span",
@@ -2118,9 +2133,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_attr"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "797fc68816d5396870f04e03d35164f5275d2502403239d4caec7ce063683f41"
+checksum = "84a92a4a34b996694ca2dab70361c60d2d48c07adce57e8155b7ec75e069e3ea"
 dependencies = [
  "rustc-ap-rustc_ast",
  "rustc-ap-rustc_ast_pretty",
@@ -2136,9 +2151,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_data_structures"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d840c4e6198b57982a54543ae604d634c7ceb7107f0c75970b88ebaff077ac5"
+checksum = "9cbfa7f82517a1b2efe7106c864c3f930b1da8aff07a27fd317af2f36522fd2e"
 dependencies = [
  "arrayvec",
  "bitflags",
@@ -2167,9 +2182,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_errors"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f2f99bdc828ad417636d9016611dc9047b641fadcb7f533b8b0e9616d81f90b"
+checksum = "58a272a5101843bcb40900cc9ccf80ecfec62830bb1f4a242986da4a34c0da89"
 dependencies = [
  "annotate-snippets 0.8.0",
  "atty",
@@ -2187,9 +2202,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_expand"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27008b4c7ded287bf5cb20b84d6d5a6566329140f2e2bc8f6e68b37a34898595"
+checksum = "3bc7988f3facf2402fe057405ef0f7fbacc7e7a483da25e35a35ac09491fbbfb"
 dependencies = [
  "rustc-ap-rustc_ast",
  "rustc-ap-rustc_ast_passes",
@@ -2211,9 +2226,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_feature"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bb47b53670f1263ed1389dda932d5b5a6daf98579c1f076c2ee7d7f22709b7c"
+checksum = "5e931cd1580ae60c5737d3fa57633034935e885414e794d83b3e52a81021985c"
 dependencies = [
  "rustc-ap-rustc_data_structures",
  "rustc-ap-rustc_span",
@@ -2221,21 +2236,21 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_fs_util"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdaddc4bae5ffab17037553e172f5014686db600050429aaa60aec14fe780e84"
+checksum = "8fe9422e10d5b441d2a78202667bc85d7cf713a087b9ae6cdea0dfc825d79f07"
 
 [[package]]
 name = "rustc-ap-rustc_graphviz"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d73c72543311e88786f7380a3bfd946395579c1a0c0441a879a97fcdea79130"
+checksum = "ffffffdef9fd51db69c1d4c045ced8aaab999be5627f2d3a0ce020d74c1f1e50"
 
 [[package]]
 name = "rustc-ap-rustc_index"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bba8d74ed4bad44a5b4264cf2a51ad0bd458ed56caa5bb090e989b8002ec6327"
+checksum = "7f6f53afc4f7111c82295cb7ea3878f520bbac6a2c5a12e125b4ca9156498cff"
 dependencies = [
  "arrayvec",
  "rustc-ap-rustc_macros",
@@ -2244,18 +2259,18 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_lexer"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a030d00510966cd31e13dca5e6c1bd40d303a932c54eca40e854188bca8c49e"
+checksum = "8056b05346dff7e39164d0434c6ec443a14ab5fbf6221bd1a56e5abbeae5f60c"
 dependencies = [
  "unicode-xid",
 ]
 
 [[package]]
 name = "rustc-ap-rustc_lint_defs"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bdff95da1b5d979183ef5c285817ba6cc67a1ac11296ef1e87b1b5bbaf57213c"
+checksum = "364c3fb7b3cbdfe3fbb21d4078ff2cb3c58df63cda27995f8b064d21ee6dede5"
 dependencies = [
  "rustc-ap-rustc_ast",
  "rustc-ap-rustc_data_structures",
@@ -2268,9 +2283,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_macros"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe3ed7401bf6f5a256d58cd0e1c1e2e77eec25e60a0d7ad75313962edcb4e396"
+checksum = "4607d6879cae3bae4d0369ca4b3a7510fd6295ac32eec088ac975208ba96ca45"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2280,9 +2295,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_parse"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "609a624baffa3f99847d57d30c96ee6732ce0912f8df4be239b6fd91533910d6"
+checksum = "78d22889bff7ca2346037c9df7ea55c66ffb714f5b50fb62b41975f8ac7a2d70"
 dependencies = [
  "bitflags",
  "rustc-ap-rustc_ast",
@@ -2300,9 +2315,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_serialize"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc232e2a351d8131c8f1386ce372ee22ef7b1b0b897bbf817a8ce4792029a564"
+checksum = "d33c710120953c0214f47a6caf42064d7e241003b4af36c98a6d6156e70335f1"
 dependencies = [
  "indexmap",
  "smallvec",
@@ -2310,9 +2325,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_session"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18acf94c820cd0c64ee1cbd811fd1f4d5ba18987c457c88771359b90cb1a12f5"
+checksum = "6d35919041429a90713c8f704fa5209ba159cb554ce74d95722cbc18ac4b4c6f"
 dependencies = [
  "bitflags",
  "getopts",
@@ -2332,9 +2347,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_span"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3479f453a38b6a5572938d035fc2b3cb6ec379c57f598b8682b512eb90c7858"
+checksum = "73b12170c69603c0bf4b50e5c25fd348aae13b8c6465aa0ef4389c9eaa568e51"
 dependencies = [
  "cfg-if 0.1.10",
  "md-5",
@@ -2352,9 +2367,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_target"
-version = "705.0.0"
+version = "712.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78cacaf829778cf07bb97a9f4604896789de12392175f3743e74a30ed370f1c1"
+checksum = "0a8329d92e7dc24b974f759e6c6e97e2bbc47b18d0573343028f8135ca367200"
 dependencies = [
  "bitflags",
  "rustc-ap-rustc_data_structures",
@@ -2373,9 +2388,9 @@ checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
 [[package]]
 name = "rustc-rayon"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f32767f90d938f1b7199a174ef249ae1924f6e5bbdb9d112fea141e016f25b3a"
+checksum = "ed7d6a39f8bfd4421ce720918234d1e672b83824c91345b47c93746839cf1629"
 dependencies = [
  "crossbeam-deque 0.7.3",
  "either",
@@ -2384,13 +2399,13 @@ dependencies = [
 
 [[package]]
 name = "rustc-rayon-core"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea2427831f0053ea3ea73559c8eabd893133a51b251d142bacee53c62a288cb3"
+checksum = "e94187d9ea3e8c38fafdbc38acb94eafa7ce155867f6ccb13830466a0d0db8c6"
 dependencies = [
  "crossbeam-deque 0.7.3",
  "crossbeam-queue",
- "crossbeam-utils 0.6.6",
+ "crossbeam-utils 0.7.2",
  "lazy_static",
  "num_cpus",
 ]
@@ -2422,7 +2437,7 @@ dependencies = [
 [[package]]
 name = "rustfmt-config_proc_macro"
 version = "0.2.0"
-source = "git+https://github.com/rust-lang/rustfmt?branch=rustfmt-1.4.36#7de6968ee22696b7feb6b477a05656de89275291"
+source = "git+https://github.com/rust-lang/rustfmt?branch=rustfmt-1.4.37#0bd2b1927c2b02a6fe7447d58e897cf1f1a1d41f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2431,8 +2446,8 @@ dependencies = [
 
 [[package]]
 name = "rustfmt-nightly"
-version = "1.4.36"
-source = "git+https://github.com/rust-lang/rustfmt?branch=rustfmt-1.4.36#7de6968ee22696b7feb6b477a05656de89275291"
+version = "1.4.37"
+source = "git+https://github.com/rust-lang/rustfmt?branch=rustfmt-1.4.37#0bd2b1927c2b02a6fe7447d58e897cf1f1a1d41f"
 dependencies = [
  "annotate-snippets 0.6.1",
  "anyhow",
@@ -2450,7 +2465,6 @@ dependencies = [
  "regex",
  "rustc-ap-rustc_ast",
  "rustc-ap-rustc_ast_pretty",
- "rustc-ap-rustc_attr",
  "rustc-ap-rustc_data_structures",
  "rustc-ap-rustc_errors",
  "rustc-ap-rustc_expand",
diff --git a/Cargo.toml b/Cargo.toml
index 996485e6d6..12a29fbcf0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,11 +41,11 @@ lsp-types = { version = "0.60", features = ["proposed"] }
 lazy_static = "1"
 log = "0.4"
 num_cpus = "1"
-racer = { version = "2.1.44", default-features = false }
+racer = { version = "2.1.45", default-features = false }
 rand = "0.7"
 rayon = "1"
 rustc_tools_util = "0.2"
-rustfmt-nightly = { git = "https://github.com/rust-lang/rustfmt", branch = "rustfmt-1.4.36" }
+rustfmt-nightly = { git = "https://github.com/rust-lang/rustfmt", branch = "rustfmt-1.4.37" }
 serde = "1.0"
 serde_json = "1.0"
 serde_derive = "1.0"