diff --git a/src/Cargo.lock b/src/Cargo.lock
index cc2da1a02dc..d72ffa14a2a 100644
--- a/src/Cargo.lock
+++ b/src/Cargo.lock
@@ -156,6 +156,7 @@ dependencies = [
  "curl 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "docopt 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "filetime 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "flate2 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "fs2 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -163,6 +164,7 @@ dependencies = [
  "git2-curl 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "hamcrest 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jobserver 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "libgit2-sys 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -172,6 +174,7 @@ dependencies = [
  "openssl 0.9.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "psapi-sys 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -280,6 +283,7 @@ name = "crates-io"
 version = "0.9.0"
 dependencies = [
  "curl 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -355,11 +359,6 @@ name = "dtoa"
 version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "either"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "enum_primitive"
 version = "0.1.1"
@@ -546,19 +545,22 @@ dependencies = [
  "xz2 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "itertools"
-version = "0.5.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "itoa"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "jobserver"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "kernel32-sys"
 version = "0.2.2"
@@ -712,11 +714,6 @@ dependencies = [
  "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "multimap"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "net2"
 version = "0.2.29"
@@ -1011,11 +1008,11 @@ dependencies = [
  "languageserver-types 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "racer 2.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "rls-analysis 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rls-data 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rls-analysis 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rls-data 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rls-vfs 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustfmt 0.8.4 (git+https://github.com/rust-lang-nursery/rustfmt)",
+ "rls-vfs 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustfmt 0.9.0 (git+https://github.com/rust-lang-nursery/rustfmt?branch=libsyntax)",
  "serde 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1026,12 +1023,12 @@ dependencies = [
 
 [[package]]
 name = "rls-analysis"
-version = "0.2.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "derive-new 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "rls-data 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rls-data 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1045,6 +1042,15 @@ dependencies = [
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rls-data"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rls-span"
 version = "0.4.0"
@@ -1057,7 +1063,7 @@ dependencies = [
 
 [[package]]
 name = "rls-vfs"
-version = "0.3.0"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "racer 2.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1446,28 +1452,23 @@ dependencies = [
 
 [[package]]
 name = "rustfmt"
-version = "0.8.4"
-source = "git+https://github.com/rust-lang-nursery/rustfmt#bf9b3fa1d7cab2f7bd541539d397a92b4954ec96"
+version = "0.9.0"
+source = "git+https://github.com/rust-lang-nursery/rustfmt?branch=libsyntax#6c1de7694782d9f710b2f00b1f650f266a99b384"
 dependencies = [
  "diff 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "multimap 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "strings 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_errors 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strings 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-segmentation 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1480,6 +1481,11 @@ dependencies = [
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "scoped-tls"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "semver"
 version = "0.7.0"
@@ -1600,7 +1606,7 @@ dependencies = [
 
 [[package]]
 name = "strings"
-version = "0.0.1"
+version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1687,18 +1693,6 @@ dependencies = [
  "unicode-xid 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "syntex_errors"
-version = "0.58.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_pos 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "term 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "syntex_pos"
 version = "0.52.0"
@@ -1707,14 +1701,6 @@ dependencies = [
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "syntex_pos"
-version = "0.58.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "syntex_syntax"
 version = "0.52.0"
@@ -1730,19 +1716,6 @@ dependencies = [
  "unicode-xid 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "syntex_syntax"
-version = "0.58.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_errors 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_pos 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "tar"
 version = "0.4.13"
@@ -2034,7 +2007,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum diff 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "0a515461b6c8c08419850ced27bc29e86166dcdcde8fbe76f8b1f0589bb49472"
 "checksum docopt 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ab32ea6e284d87987066f21a9e809a73c14720571ef34516f0890b3d355ccfd8"
 "checksum dtoa 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "80c8b71fd71146990a9742fc06dcbbde19161a267e0ad4e572c35162f4578c90"
-"checksum either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "18785c1ba806c258137c937e44ada9ee7e69a37e3c72077542cd2f069d78562a"
 "checksum enum_primitive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "be4551092f4d519593039259a9ed8daedf0da12e5109c5280338073eaeb81180"
 "checksum env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "15abd780e45b3ea4f76b4e9a26ff4843258dd8a3eed2775a0e7368c2e7936c2f"
 "checksum env_logger 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e3856f1697098606fc6cb97a93de88ca3f3bc35bb878c725920e6e82ecf05e83"
@@ -2052,8 +2024,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum hamcrest 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bf088f042a467089e9baa4972f57f9247e42a0cc549ba264c7a04fbb8ecb89d4"
 "checksum handlebars 0.25.3 (registry+https://github.com/rust-lang/crates.io-index)" = "15bdf598fc3c2de40c6b340213028301c0d225eea55a2294e6cc148074e557a1"
 "checksum idna 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6ac85ec3f80c8e4e99d9325521337e14ec7555c458a14e377d189659a427f375"
-"checksum itertools 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4833d6978da405305126af4ac88569b5d71ff758581ce5a987dbfa3755f694fc"
 "checksum itoa 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "eb2f404fbc66fd9aac13e998248505e7ecb2ad8e44ab6388684c5fb11c6c251c"
+"checksum jobserver 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "c43fc6e4066b2adf0539c854daa1d926d7f23e6926e019850d34b8ae46391b2e"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum languageserver-types 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "97c2985bfcbbcb0189cfa25e1c10c1ac7111df2b6214b652c690127aefdf4e5b"
 "checksum lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3b37545ab726dd833ec6420aaba8231c5b320814b9029ad585555d2a03e94fbf"
@@ -2069,7 +2041,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum memchr 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1dbccc0e46f1ea47b9f17e6d67c5a96bd27030519c519c9c91327e31275a47b4"
 "checksum miniz-sys 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "28eaee17666671fa872e567547e8428e83308ebe5808cdf6a0e28397dbe2c726"
 "checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
-"checksum multimap 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9223f4774d08e06185e44e555b9a7561243d387bac49c78a6205c42d6975fbf2"
 "checksum net2 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)" = "bc01404e7568680f1259aa5729539f221cb1e6d047a0d9053cab4be8a73b5d67"
 "checksum num 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)" = "98b15ba84e910ea7a1973bccd3df7b31ae282bf9d8bd2897779950c9b8303d40"
 "checksum num-bigint 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)" = "ba6d838b16e56da1b6c383d065ff1ec3c7d7797f65a3e8f6ba7092fd87820bac"
@@ -2098,14 +2069,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum regex 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4278c17d0f6d62dfef0ab00028feb45bd7d2102843f80763474eeb1be8a10c01"
 "checksum regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
 "checksum regex-syntax 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9191b1f57603095f105d317e375d19b1c9c5c3185ea9633a99a6dcbed04457"
-"checksum rls-analysis 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a62d88c341375c6f3f8b2e18b9b364896e7d3e7aa916907de717d0267e116506"
+"checksum rls-analysis 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8d77d58e8933752142b5b92e3f8ba6d6f1630be6da5627c492268a43f79ffbda"
 "checksum rls-data 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fc4277ce3c57f456b11fe3145b181a844a25201bab5cbaa1978457e6e2f27d47"
+"checksum rls-data 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "374a8fad31cc0681a7bfd8a04079dd4afd0e981d34e18a171b1a467445bdf51e"
 "checksum rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5d7c7046dc6a92f2ae02ed302746db4382e75131b9ce20ce967259f6b5867a6a"
-"checksum rls-vfs 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "986eada111517bcb5a7a75205b3f2b70c82e7766653cca61a23f5afce79bdb94"
+"checksum rls-vfs 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ace07060dd154731b39254864245cbdd33c8f5f64fe1f630a089c72e2468f854"
 "checksum rustc-demangle 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "3058a43ada2c2d0b92b3ae38007a2d0fa5e9db971be260e0171408a4ff471c95"
 "checksum rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)" = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
-"checksum rustfmt 0.8.4 (git+https://github.com/rust-lang-nursery/rustfmt)" = "<none>"
+"checksum rustfmt 0.9.0 (git+https://github.com/rust-lang-nursery/rustfmt?branch=libsyntax)" = "<none>"
 "checksum same-file 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d931a44fdaa43b8637009e7632a02adc4f2b2e0733c08caa4cf00e8da4a117a7"
+"checksum scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f417c22df063e9450888a7561788e9bd46d3bb3c1466435b4eccb903807f147d"
 "checksum semver 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3fdd61b85a0fa777f7fb7c454b9189b2941b110d1385ce84d7f76efdf1606a85"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 "checksum serde 0.9.15 (registry+https://github.com/rust-lang/crates.io-index)" = "34b623917345a631dc9608d5194cc206b3fe6c3554cd1c75b937e55e285254af"
@@ -2117,18 +2090,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum serde_json 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "48b04779552e92037212c3615370f6bd57a40ebba7f20e554ff9f55e41a69a7b"
 "checksum shell-escape 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "dd5cc96481d54583947bfe88bf30c23d53f883c6cd0145368b69989d97b84ef8"
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diff --git a/src/tools/cargo b/src/tools/cargo
index 82733b01471..bbfe9b3a9d6 160000
--- a/src/tools/cargo
+++ b/src/tools/cargo
@@ -1 +1 @@
-Subproject commit 82733b01471a2c62bb1cec966d888c52ff118914
+Subproject commit bbfe9b3a9d64aa8698b18cbb3803b3fa00ee3f44
diff --git a/src/tools/rls b/src/tools/rls
index 38ca9b702b7..bfe80cfa8db 160000
--- a/src/tools/rls
+++ b/src/tools/rls
@@ -1 +1 @@
-Subproject commit 38ca9b702b73c03959e447f5dae56eff7497c986
+Subproject commit bfe80cfa8db75500e67ca8762465d27662674637