diff --git a/src/Cargo.lock b/src/Cargo.lock
index 0c12d7304da..a3b85486ec0 100644
--- a/src/Cargo.lock
+++ b/src/Cargo.lock
@@ -84,7 +84,7 @@ name = "backtrace"
 version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace-sys 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace-sys 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "dbghelp-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -95,7 +95,7 @@ dependencies = [
 
 [[package]]
 name = "backtrace-sys"
-version = "0.1.11"
+version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gcc 0.3.51 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -164,12 +164,6 @@ dependencies = [
  "filetime 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "cargo"
-version = "0.21.0"
-source = "git+https://github.com/rust-lang/cargo#5982cf904be1d72f575dcbd1e750c07bf730b966"
-replace = "cargo 0.21.0"
-
 [[package]]
 name = "cargo"
 version = "0.21.0"
@@ -180,7 +174,7 @@ dependencies = [
  "cargotest 0.1.0",
  "crates-io 0.10.0",
  "crossbeam 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "curl 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "docopt 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -200,7 +194,53 @@ dependencies = [
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl 0.9.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl 0.9.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "psapi-sys 0.1.0 (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 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_ignored 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "shell-escape 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tar 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termcolor 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "toml 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "cargo"
+version = "0.22.0"
+source = "git+https://github.com/rust-lang/cargo#47783c151dcfcd3b835cd2012bfc2810c0f8d017"
+dependencies = [
+ "advapi32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crates-io 0.11.0 (git+https://github.com/rust-lang/cargo)",
+ "crossbeam 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "docopt 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.4.3 (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 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "git2 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "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)",
+ "hex 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "home 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ignore 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jobserver 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libgit2-sys 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl 0.9.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "psapi-sys 0.1.0 (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)",
@@ -250,7 +290,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "clap"
-version = "2.25.0"
+version = "2.25.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -317,7 +357,20 @@ dependencies = [
 name = "crates-io"
 version = "0.10.0"
 dependencies = [
- "curl 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "crates-io"
+version = "0.11.0"
+source = "git+https://github.com/rust-lang/cargo#47783c151dcfcd3b835cd2012bfc2810c0f8d017"
+dependencies = [
+ "curl 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -332,13 +385,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "curl"
-version = "0.4.7"
+version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "curl-sys 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-probe 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "socket2 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -351,7 +404,7 @@ dependencies = [
  "gcc 0.3.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "libz-sys 1.0.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -402,7 +455,7 @@ name = "enum_primitive"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -484,6 +537,11 @@ dependencies = [
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "futures"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "gcc"
 version = "0.3.51"
@@ -503,7 +561,7 @@ dependencies = [
  "libc 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "libgit2-sys 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-probe 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -512,7 +570,7 @@ name = "git2-curl"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "curl 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "git2 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -548,7 +606,7 @@ name = "hamcrest"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -575,13 +633,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "highlight"
 version = "0.1.0"
 
+[[package]]
+name = "home"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "advapi32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "userenv-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "hover"
 version = "0.1.0"
 
 [[package]]
 name = "idna"
-version = "0.1.2"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "matches 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -608,7 +678,7 @@ dependencies = [
 name = "installer"
 version = "0.0.0"
 dependencies = [
- "clap 2.25.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.25.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "flate2 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -633,6 +703,18 @@ dependencies = [
  "rand 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "jsonrpc-core"
+version = "7.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "kernel32-sys"
 version = "0.2.2"
@@ -644,7 +726,7 @@ dependencies = [
 
 [[package]]
 name = "languageserver-types"
-version = "0.11.1"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "enum_primitive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -683,7 +765,7 @@ dependencies = [
  "libc 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "libssh2-sys 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "libz-sys 1.0.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -695,7 +777,7 @@ dependencies = [
  "cmake 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "libz-sys 1.0.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -739,7 +821,7 @@ name = "mdbook"
 version = "0.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "clap 2.25.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.25.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "handlebars 0.26.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -782,7 +864,7 @@ version = "0.2.1"
 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)",
- "net2 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "net2 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -793,7 +875,7 @@ version = "0.1.0"
 
 [[package]]
 name = "net2"
-version = "0.2.29"
+version = "0.2.30"
 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)",
@@ -805,68 +887,68 @@ dependencies = [
 
 [[package]]
 name = "num"
-version = "0.1.39"
+version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-bigint 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-complex 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-iter 0.1.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-rational 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-bigint 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-complex 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-iter 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-rational 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-bigint"
-version = "0.1.39"
+version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-integer 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.15 (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 = "num-complex"
-version = "0.1.38"
+version = "0.1.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.40 (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 = "num-integer"
-version = "0.1.34"
+version = "0.1.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-iter"
-version = "0.1.33"
+version = "0.1.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-integer 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-rational"
-version = "0.1.38"
+version = "0.1.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-bigint 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-bigint 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.40 (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 = "num-traits"
-version = "0.1.39"
+version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -884,14 +966,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "openssl"
-version = "0.9.14"
+version = "0.9.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "foreign-types 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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- "openssl-sys 0.9.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -901,7 +983,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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-version = "0.9.14"
+version = "0.9.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gcc 0.3.51 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1004,7 +1086,7 @@ name = "racer"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "clap 2.25.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.25.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1088,14 +1170,14 @@ version = "0.1.0"
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- "cargo 0.21.0 (git+https://github.com/rust-lang/cargo)",
- "derive-new 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cargo 0.22.0 (git+https://github.com/rust-lang/cargo)",
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "languageserver-types 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 7.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
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- "rls-data 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rls-analysis 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rls-data 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
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  "rustfmt-nightly 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1109,21 +1191,12 @@ dependencies = [
 
 [[package]]
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-version = "0.4.3"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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- "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "rls-data"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
+ "rls-data 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1160,7 +1233,7 @@ dependencies = [
 name = "rustbook"
 version = "0.1.0"
 dependencies = [
- "clap 2.25.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.25.1 (registry+https://github.com/rust-lang/crates.io-index)",
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 ]
 
@@ -1591,6 +1664,11 @@ name = "scoped-tls"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "scopeguard"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
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@@ -1644,7 +1722,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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  "itoa 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1992,7 +2070,7 @@ name = "url"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "idna 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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 ]
@@ -2006,6 +2084,15 @@ dependencies = [
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 ]
 
+[[package]]
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+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "utf8-ranges"
 version = "0.1.3"
@@ -2097,17 +2184,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "23ac7c30002a5accbf7e8987d0632fa6de155b7c3d39d0067317a391e00a2ef6"
 "checksum atty 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d912da0db7fa85514874458ca3651fe2cddace8d0b0505571dbdcd41ab490159"
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-"checksum backtrace-sys 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "3a0d842ea781ce92be2bf78a9b38883948542749640b8378b3b2f03d1fd9f1ff"
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-"checksum cargo 0.21.0 (git+https://github.com/rust-lang/cargo)" = "<none>"
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-"checksum clap 2.25.0 (registry+https://github.com/rust-lang/crates.io-index)" = "867a885995b4184be051b70a592d4d70e32d7a188db6e8dff626af286a962771"
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-"checksum curl 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "6689276ab61f97c660669a5ecc117c36875dfc1ba301c986b16c653415bdf9d7"
+"checksum curl 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7034c534a1d7d22f7971d6088aa9d281d219ef724026c3428092500f41ae9c2c"
 "checksum curl-sys 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d5481162dc4f424d088581db2f979fa7d4c238fe9794595de61d8d7522e277de"
 "checksum dbghelp-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "97590ba53bcb8ac28279161ca943a924d1fd4a8fb3fa63302591647c4fc5b850"
 "checksum derive-new 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "41be6ca3b99e0c0483fb2389685448f650459c3ecbe4e18d7705d8010ec4ab8e"
@@ -2123,6 +2211,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6cc484842f1e2884faf56f529f960cc12ad8c71ce96cc7abba0a067c98fee344"
 "checksum foreign-types 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3e4056b9bd47f8ac5ba12be771f77a0dae796d1bbaaf5fd0b9c2d38b69b8a29d"
 "checksum fs2 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9ab76cfd2aaa59b7bf6688ad9ba15bbae64bff97f04ea02144cfd3443e5c2866"
+"checksum futures 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "4b63a4792d4f8f686defe3b39b92127fea6344de5d38202b2ee5a11bbbf29d6a"
 "checksum gcc 0.3.51 (registry+https://github.com/rust-lang/crates.io-index)" = "120d07f202dcc3f72859422563522b66fe6463a4c513df062874daad05f85f0a"
 "checksum getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d9047cfbd08a437050b363d35ef160452c5fe8ea5187ae0a624708c91581d685"
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@@ -2132,12 +2221,14 @@ 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"
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-"checksum idna 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2233d4940b1f19f0418c158509cd7396b8d70a5db5705ce410914dc8fa603b37"
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+"checksum idna 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "014b298351066f1512874135335d62a789ffe78a9974f94b43ed5621951eaf7d"
 "checksum ignore 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b3fcaf2365eb14b28ec7603c98c06cc531f19de9eb283d89a3dff8417c8c99f5"
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 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
-"checksum languageserver-types 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "680aee78c75504fdcb172635a7b7da0dccaafa4c42d935e19576c14b27942362"
+"checksum languageserver-types 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d52e477b23bf52cd3ca0f9fc6c5d14be954eec97e3b9cdfbd962d911bd533caf"
 "checksum lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3b37545ab726dd833ec6420aaba8231c5b320814b9029ad585555d2a03e94fbf"
 "checksum libc 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)" = "30885bcb161cf67054244d10d4a7f4835ffd58773bc72e07d35fecf472295503"
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@@ -2151,19 +2242,19 @@ 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 net2 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)" = "bc01404e7568680f1259aa5729539f221cb1e6d047a0d9053cab4be8a73b5d67"
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 "checksum regex-syntax 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ad890a5eef7953f55427c50575c680c42841653abd2b028b68cd223d157f62db"
-"checksum rls-analysis 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ea940411ed2ad6d1e705fc2a0b146a0a3f30f8098ba4e61b45b4e5f2bfa7ed63"
-"checksum rls-data 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e502ac679bc35e023e982506c32d0278ef89e29af1e4ad21cb70c44b525b87a9"
+"checksum rls-analysis 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "0127cfae9c726461facbbbc8327e782adf8afd61f7fcc6adf8ea9ad8fc428ed0"
 "checksum rls-data 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f274ec7f966337dc2601fe9bde060b551d1293c277af782dc65cd7200ca070c0"
 "checksum rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5d7c7046dc6a92f2ae02ed302746db4382e75131b9ce20ce967259f6b5867a6a"
 "checksum rls-vfs 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ffd34691a510938bb67fe0444fb363103c73ffb31c121d1e16bc92d8945ea8ff"
@@ -2189,6 +2279,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum rustfmt-nightly 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "6693f90ac7d0a2291aa309f5214f5f3ac1bd79961c11116fcf6d5545749bf2e7"
 "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 scopeguard 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "59a076157c1e2dc561d8de585151ee6965d910dd4dcb5dabb7ae3e83981a6c57"
 "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 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)" = "433d7d9f8530d5a939ad5e0e72a6243d2e42a24804f70bf592c679363dcacb2f"
@@ -2229,6 +2320,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
 "checksum url 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "eeb819346883532a271eb626deb43c4a1bb4c4dd47c519bd78137c3e72a4fe27"
 "checksum url_serde 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "74e7d099f1ee52f823d4bdd60c93c3602043c728f5db3b97bdb548467f7bddea"
+"checksum userenv-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "71d28ea36bbd9192d75bd9fa9b39f96ddb986eaee824adae5d53b6e51919b2f3"
 "checksum utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"
 "checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
 "checksum vcpkg 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9e0a7d8bed3178a8fb112199d466eeca9ed09a14ba8ad67718179b4fd5487d0b"
diff --git a/src/librustc_save_analysis/json_dumper.rs b/src/librustc_save_analysis/json_dumper.rs
index 521faba9bcc..60cec4c5e46 100644
--- a/src/librustc_save_analysis/json_dumper.rs
+++ b/src/librustc_save_analysis/json_dumper.rs
@@ -56,8 +56,14 @@ impl<'b, W: Write> JsonDumper<WriteOutput<'b, W>> {
 }
 
 impl<'b> JsonDumper<CallbackOutput<'b>> {
-    pub fn with_callback(callback: &'b mut FnMut(&Analysis), config: Config) -> JsonDumper<CallbackOutput<'b>> {
-        JsonDumper { output: CallbackOutput { callback: callback }, config, result: Analysis::new() }
+    pub fn with_callback(callback: &'b mut FnMut(&Analysis),
+                         config: Config)
+                         -> JsonDumper<CallbackOutput<'b>> {
+        JsonDumper {
+            output: CallbackOutput { callback: callback },
+            config,
+            result: Analysis::new(),
+        }
     }
 }
 
diff --git a/src/librustc_save_analysis/lib.rs b/src/librustc_save_analysis/lib.rs
index 42b20d1ce2c..c9489aac981 100644
--- a/src/librustc_save_analysis/lib.rs
+++ b/src/librustc_save_analysis/lib.rs
@@ -897,7 +897,8 @@ impl<'a> DumpHandler<'a> {
                     error!("Could not create directory {}: {}", root_path.display(), e);
                 }
 
-                let executable = sess.crate_types.borrow().iter().any(|ct| *ct == CrateTypeExecutable);
+                let executable =
+                    sess.crate_types.borrow().iter().any(|ct| *ct == CrateTypeExecutable);
                 let mut out_name = if executable {
                     "".to_owned()
                 } else {
diff --git a/src/tools/rls b/src/tools/rls
index 618f802f0dc..7799d03de85 160000
--- a/src/tools/rls
+++ b/src/tools/rls
@@ -1 +1 @@
-Subproject commit 618f802f0dcebc9f23a527afd3cd228c1fa468f8
+Subproject commit 7799d03de85bcc1a7437f65d4f7adfbb267d2acb