diff --git a/Cargo.lock b/Cargo.lock
index bc52c406226..43e1ca13bbd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5,7 +5,7 @@ name = "aho-corasick"
 version = "0.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -19,7 +19,7 @@ dependencies = [
 
 [[package]]
 name = "arrayvec"
-version = "0.4.8"
+version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -30,30 +30,36 @@ name = "atty"
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
  "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "autocfg"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "backtrace"
-version = "0.3.9"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace-sys 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace-sys 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-demangle 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-demangle 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "backtrace-sys"
-version = "0.1.24"
+version = "0.1.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -66,7 +72,7 @@ name = "blake2-rfc"
 version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "arrayvec 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "constant_time_eq 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -75,12 +81,12 @@ name = "bytecount"
 version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "packed_simd 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "packed_simd 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "byteorder"
-version = "1.2.7"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -90,14 +96,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "cc"
-version = "1.0.25"
+version = "1.0.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -132,7 +138,7 @@ name = "crossbeam-epoch"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "arrayvec 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -154,9 +160,9 @@ name = "derive-new"
 version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.26 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -169,7 +175,7 @@ name = "dirs"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_users 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -193,9 +199,9 @@ version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "humantime 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "humantime 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -204,7 +210,7 @@ name = "error-chain"
 version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -212,7 +218,7 @@ name = "failure"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -221,24 +227,15 @@ name = "failure_derive"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "fuchsia-zircon"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "fuchsia-zircon-sys"
-version = "0.3.3"
+name = "fuchsia-cprng"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -251,7 +248,7 @@ dependencies = [
 
 [[package]]
 name = "humantime"
-version = "1.1.1"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -277,7 +274,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.44"
+version = "0.2.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -299,12 +296,11 @@ dependencies = [
 
 [[package]]
 name = "memchr"
-version = "2.1.1"
+version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
- "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -319,10 +315,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "num_cpus"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -335,7 +331,7 @@ dependencies = [
 
 [[package]]
 name = "packed_simd"
-version = "0.3.1"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -355,16 +351,16 @@ name = "parking_lot_core"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "proc-macro2"
-version = "0.4.24"
+version = "0.4.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -377,50 +373,60 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "quote"
-version = "0.6.10"
+version = "0.6.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rand"
-version = "0.4.3"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rand"
-version = "0.5.5"
+version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rand_core"
-version = "0.2.2"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rand_core 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rand_core"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "rdrand"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "redox_syscall"
-version = "0.1.43"
+version = "0.1.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -428,7 +434,7 @@ name = "redox_termios"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "redox_syscall 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -438,25 +444,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "argon2rs 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "regex"
-version = "1.0.6"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "aho-corasick 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.3"
+version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -464,20 +470,20 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-arena"
-version = "306.0.0"
+version = "366.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rustc-ap-rustc_data_structures 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_data_structures 366.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rustc-ap-graphviz"
-version = "306.0.0"
+version = "366.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "rustc-ap-rustc_cratesio_shim"
-version = "306.0.0"
+version = "366.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -487,90 +493,90 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_data_structures"
-version = "306.0.0"
+version = "366.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "ena 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-graphviz 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_cratesio_shim 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-serialize 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-graphviz 366.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_cratesio_shim 366.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-serialize 366.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-rayon 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-rayon-core 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-rayon 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-rayon-core 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rustc-ap-rustc_errors"
-version = "306.0.0"
+version = "366.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_cratesio_shim 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_data_structures 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-serialize 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-syntax_pos 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_cratesio_shim 366.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_data_structures 366.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-serialize 366.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-syntax_pos 366.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rustc-ap-rustc_target"
-version = "306.0.0"
+version = "366.0.0"
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- "rustc-ap-syntax_pos 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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- "rustc-ap-serialize 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-arena 366.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_data_structures 366.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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 [[package]]
@@ -578,28 +584,28 @@ name = "rustc-hash"
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 dependencies = [
- "byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
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 ]
 
 [[package]]
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- "rustc-rayon-core 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-rayon-core 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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- "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
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- "rustc-ap-syntax_pos 306.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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- "toml 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
@@ -682,32 +688,32 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
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 [[package]]
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@@ -720,11 +726,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
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- "quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "syn 0.15.26 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -744,7 +750,7 @@ name = "term"
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 dependencies = [
- "byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -761,8 +767,8 @@ name = "termion"
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- "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -776,10 +782,10 @@ dependencies = [
 
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -820,11 +826,6 @@ name = "utf8-ranges"
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-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
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@@ -846,7 +847,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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@@ -863,22 +864,23 @@ version = "1.0.1"
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+"checksum rustc-rayon 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8d98c51d9cbbe810c8b6693236d3412d8cd60513ff27a3e1b6af483dca0af544"
+"checksum rustc-rayon-core 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "526e7b6d2707a5b9bec3927d424ad70fa3cfc68e0ac1b75e46cdbbc95adc5108"
 "checksum rustc-workspace-hack 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc71d2faa173b74b232dedc235e3ee1696581bb132fc116fa3626d6151a1a8fb"
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@@ -945,18 +947,18 @@ dependencies = [
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-"checksum serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)" = "225de307c6302bec3898c51ca302fc94a7a1697ef0845fcee6448f33c032249c"
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@@ -964,10 +966,9 @@ dependencies = [
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diff --git a/Cargo.toml b/Cargo.toml
index b1e83e93b09..b62a25431ed 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -48,9 +48,9 @@ env_logger = "0.6"
 getopts = "0.2"
 derive-new = "0.5"
 cargo_metadata = "0.7"
-rustc-ap-rustc_target = "306.0.0"
-rustc-ap-syntax = "306.0.0"
-rustc-ap-syntax_pos = "306.0.0"
+rustc-ap-rustc_target = "366.0.0"
+rustc-ap-syntax = "366.0.0"
+rustc-ap-syntax_pos = "366.0.0"
 failure = "0.1.3"
 bytecount = "0.5"
 unicode-width = "0.1.5"
diff --git a/src/closures.rs b/src/closures.rs
index 4ec66f06386..a0489718740 100644
--- a/src/closures.rs
+++ b/src/closures.rs
@@ -157,7 +157,6 @@ fn rewrite_closure_with_block(
         id: ast::NodeId::root(),
         rules: ast::BlockCheckMode::Default,
         span: body.span,
-        recovered: false,
     };
     let block =
         crate::expr::rewrite_block_with_visitor(context, "", &block, None, None, shape, false)?;
diff --git a/src/expr.rs b/src/expr.rs
index 0e22134680f..744bc00d0de 100644
--- a/src/expr.rs
+++ b/src/expr.rs
@@ -379,6 +379,7 @@ pub fn format_expr(
                 ))
             }
         }
+        ast::ExprKind::Err => None,
     };
 
     expr_rw
diff --git a/src/macros.rs b/src/macros.rs
index 51cf9db53e8..a1b571ba0ad 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -27,7 +27,7 @@ use syntax::parse::token::{BinOpToken, DelimToken, Token};
 use syntax::print::pprust;
 use syntax::source_map::{BytePos, Span};
 use syntax::symbol;
-use syntax::tokenstream::{Cursor, ThinTokenStream, TokenStream, TokenTree};
+use syntax::tokenstream::{Cursor, TokenStream, TokenTree};
 use syntax::ThinVec;
 use syntax::{ast, parse, ptr};
 
@@ -751,7 +751,7 @@ struct MacroArgParser {
 fn last_tok(tt: &TokenTree) -> Token {
     match *tt {
         TokenTree::Token(_, ref t) => t.clone(),
-        TokenTree::Delimited(_, ref d) => d.close_token(),
+        TokenTree::Delimited(_, delim, _) => Token::CloseDelim(delim),
     }
 }
 
@@ -916,11 +916,11 @@ impl MacroArgParser {
     }
 
     /// Returns a collection of parsed macro def's arguments.
-    pub fn parse(mut self, tokens: ThinTokenStream) -> Option<Vec<ParsedMacroArg>> {
+    pub fn parse(mut self, tokens: TokenStream) -> Option<Vec<ParsedMacroArg>> {
         let stream: TokenStream = tokens.into();
         let mut iter = stream.trees();
 
-        while let Some(ref tok) = iter.next() {
+        while let Some(tok) = iter.next() {
             match tok {
                 TokenTree::Token(sp, Token::Dollar) => {
                     // We always want to add a separator before meta variables.
@@ -937,7 +937,7 @@ impl MacroArgParser {
                     self.add_meta_variable(&mut iter)?;
                 }
                 TokenTree::Token(sp, ref t) => self.update_buffer(sp.lo(), t),
-                TokenTree::Delimited(delimited_span, delimited) => {
+                TokenTree::Delimited(delimited_span, delimited, ref tts) => {
                     if !self.buf.is_empty() {
                         if next_space(&self.last_tok) == SpaceState::Always {
                             self.add_separator();
@@ -949,19 +949,19 @@ impl MacroArgParser {
                     // Parse the stuff inside delimiters.
                     let mut parser = MacroArgParser::new();
                     parser.lo = delimited_span.open.lo();
-                    let delimited_arg = parser.parse(delimited.tts.clone())?;
+                    let delimited_arg = parser.parse(tts.clone())?;
 
                     let span = delimited_span.entire();
                     if self.is_meta_var {
-                        self.add_repeat(delimited_arg, delimited.delim, &mut iter, span)?;
+                        self.add_repeat(delimited_arg, delimited, &mut iter, span)?;
                         self.is_meta_var = false;
                     } else {
-                        self.add_delimited(delimited_arg, delimited.delim, span);
+                        self.add_delimited(delimited_arg, delimited, span);
                     }
                 }
             }
 
-            self.set_last_tok(tok);
+            self.set_last_tok(&tok);
         }
 
         // We are left with some stuff in the buffer. Since there is nothing
@@ -1027,11 +1027,7 @@ fn wrap_macro_args_inner(
 //
 // We always try and format on one line.
 // FIXME: Use multi-line when every thing does not fit on one line.
-fn format_macro_args(
-    context: &RewriteContext,
-    toks: ThinTokenStream,
-    shape: Shape,
-) -> Option<String> {
+fn format_macro_args(context: &RewriteContext, toks: TokenStream, shape: Shape) -> Option<String> {
     if !context.config.format_macro_matchers() {
         let token_stream: TokenStream = toks.into();
         let span = span_for_token_stream(&token_stream);
@@ -1176,7 +1172,7 @@ impl MacroParser {
         let tok = self.toks.next()?;
         let (lo, args_paren_kind) = match tok {
             TokenTree::Token(..) => return None,
-            TokenTree::Delimited(delimited_span, ref d) => (delimited_span.open.lo(), d.delim),
+            TokenTree::Delimited(delimited_span, d, _) => (delimited_span.open.lo(), d),
         };
         let args = tok.joint().into();
         match self.toks.next()? {
@@ -1185,7 +1181,7 @@ impl MacroParser {
         }
         let (mut hi, body, whole_body) = match self.toks.next()? {
             TokenTree::Token(..) => return None,
-            TokenTree::Delimited(delimited_span, _) => {
+            TokenTree::Delimited(delimited_span, ..) => {
                 let data = delimited_span.entire().data();
                 (
                     data.hi,
@@ -1218,7 +1214,7 @@ struct Macro {
 struct MacroBranch {
     span: Span,
     args_paren_kind: DelimToken,
-    args: ThinTokenStream,
+    args: TokenStream,
     body: Span,
     whole_body: Span,
 }
diff --git a/src/visitor.rs b/src/visitor.rs
index 029905f7e80..a677ce6c985 100644
--- a/src/visitor.rs
+++ b/src/visitor.rs
@@ -10,7 +10,6 @@
 
 use std::cell::RefCell;
 
-use syntax::attr::HasAttrs;
 use syntax::parse::ParseSess;
 use syntax::source_map::{self, BytePos, Pos, SourceMap, Span};
 use syntax::{ast, visit};
@@ -152,32 +151,11 @@ impl<'b, 'a: 'b> FmtVisitor<'a> {
         self.push_str("{");
 
         if let Some(first_stmt) = b.stmts.first() {
-            let attr_lo = inner_attrs
+            let hi = inner_attrs
                 .and_then(|attrs| inner_attributes(attrs).first().map(|attr| attr.span.lo()))
-                .or_else(|| {
-                    // Attributes for an item in a statement position
-                    // do not belong to the statement. (rust-lang/rust#34459)
-                    if let ast::StmtKind::Item(ref item) = first_stmt.node {
-                        item.attrs.first()
-                    } else {
-                        first_stmt.attrs().first()
-                    }
-                    .and_then(|attr| {
-                        // Some stmts can have embedded attributes.
-                        // e.g. `match { #![attr] ... }`
-                        let attr_lo = attr.span.lo();
-                        if attr_lo < first_stmt.span.lo() {
-                            Some(attr_lo)
-                        } else {
-                            None
-                        }
-                    })
-                });
+                .unwrap_or(first_stmt.span().lo());
 
-            let snippet = self.snippet(mk_sp(
-                self.last_pos,
-                attr_lo.unwrap_or_else(|| first_stmt.span.lo()),
-            ));
+            let snippet = self.snippet(mk_sp(self.last_pos, hi));
             let len = CommentCodeSlices::new(snippet)
                 .nth(0)
                 .and_then(|(kind, _, s)| {