From 60437a8dcb7916f0eb4b5ef75de4726fde1b9b65 Mon Sep 17 00:00:00 2001
From: carllin <wumu727@gmail.com>
Date: Sun, 17 Mar 2019 18:48:23 -0700
Subject: [PATCH] Multiple entries per blob (#3337)

* Pack multiple entries into blob

* fix tests

* Add test for deserializing multi-entry blobs in blocktree

* more test fixes
---
 Cargo.lock                  | 616 ++++++++++++++++--------------------
 core/src/blocktree.rs       |  64 +++-
 core/src/blocktree/rocks.rs |  18 +-
 core/src/chacha.rs          |   2 +-
 core/src/db_window.rs       |   9 +-
 core/src/entry.rs           |  67 ++--
 core/src/erasure.rs         |   2 +-
 core/src/packet.rs          |  11 +
 8 files changed, 409 insertions(+), 380 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 137b8eb4f..0204408f8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,7 +2,7 @@
 # It is not intended for manual editing.
 [[package]]
 name = "MacTypes-sys"
-version = "1.3.0"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -15,10 +15,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "aho-corasick"
-version = "0.6.9"
+version = "0.6.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -97,12 +97,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "backtrace"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "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)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (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)",
@@ -113,7 +113,7 @@ name = "backtrace-sys"
 version = "0.1.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -128,7 +128,7 @@ dependencies = [
 
 [[package]]
 name = "base64"
-version = "0.10.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -146,22 +146,23 @@ dependencies = [
 
 [[package]]
 name = "bindgen"
-version = "0.43.2"
+version = "0.47.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "cexpr 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cexpr 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "clang-sys 0.26.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hashbrown 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "peeking_take_while 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "which 1.0.5 (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)",
+ "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "which 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -202,18 +203,18 @@ name = "block-buffer"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "block-padding 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "byte-tools 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "block-padding 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "generic-array 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "block-padding"
-version = "0.1.2"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "byte-tools 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -250,7 +251,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "byte-tools"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -274,7 +275,7 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.28"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -282,15 +283,15 @@ dependencies = [
 
 [[package]]
 name = "cexpr"
-version = "0.3.3"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "nom 4.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nom 4.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "cfg-if"
-version = "0.1.6"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -385,21 +386,10 @@ dependencies = [
 
 [[package]]
 name = "crc32fast"
-version = "1.1.2"
+version = "1.2.0"
 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)",
-]
-
-[[package]]
-name = "crossbeam-channel"
-version = "0.3.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -413,11 +403,11 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-deque"
-version = "0.6.3"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam-epoch 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-epoch 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -426,7 +416,7 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "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)",
+ "cfg-if 0.1.7 (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 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -436,31 +426,40 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.7.0"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "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 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "crossbeam-queue"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.2.2"
 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)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.6.3"
+version = "0.6.5"
 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)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -501,7 +500,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "either"
-version = "1.5.0"
+version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -535,15 +534,15 @@ dependencies = [
  "pretty_env_logger 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha2 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "tempfile 3.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "encoding_rs"
-version = "0.8.14"
+version = "0.8.17"
 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)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -564,7 +563,7 @@ dependencies = [
  "atty 0.2.11 (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 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -576,7 +575,7 @@ dependencies = [
  "atty 0.2.11 (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 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -585,7 +584,7 @@ name = "error-chain"
 version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -604,7 +603,7 @@ name = "failure"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -613,9 +612,9 @@ 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 0.15.24 (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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -649,7 +648,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "fuchsia-cprng"
-version = "0.1.0"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -677,7 +676,7 @@ version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -707,28 +706,28 @@ name = "globset"
 version = "0.4.2"
 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)",
+ "aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "h2"
-version = "0.1.15"
+version = "0.1.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "http 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "http 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "indexmap 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "string 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -758,13 +757,13 @@ name = "hex-literal"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hex-literal-impl 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hex-literal-impl 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro-hack 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "hex-literal-impl"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro-hack 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -772,7 +771,7 @@ dependencies = [
 
 [[package]]
 name = "http"
-version = "0.1.15"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -803,7 +802,7 @@ dependencies = [
  "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "traitobject 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -813,27 +812,28 @@ dependencies = [
 
 [[package]]
 name = "hyper"
-version = "0.12.22"
+version = "0.12.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "h2 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "http 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "h2 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "http 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "httparse 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-executor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-reactor 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-reactor 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-tcp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-threadpool 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-timer 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-threadpool 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-timer 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "want 0.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -854,9 +854,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.12.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.12.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "native-tls 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -866,7 +866,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-normalization 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-normalization 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -905,7 +905,7 @@ name = "itertools"
 version = "0.7.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "either 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -913,7 +913,7 @@ name = "itertools"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "either 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -938,9 +938,9 @@ name = "jsonrpc-derive"
 version = "10.1.0"
 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 0.15.24 (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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -948,12 +948,12 @@ name = "jsonrpc-http-server"
 version = "10.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hyper 0.12.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.12.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 10.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-server-utils 10.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicase 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -977,10 +977,10 @@ dependencies = [
  "jsonrpc-core 10.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-codec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicase 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1028,12 +1028,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libflate"
-version = "0.1.19"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "adler32 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "crc32fast 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1041,20 +1041,19 @@ name = "libloading"
 version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "librocksdb-sys"
-version = "5.14.3"
+version = "5.17.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bindgen 0.43.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bindgen 0.47.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "make-cmd 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1084,14 +1083,9 @@ name = "log"
 version = "0.4.6"
 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)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "make-cmd"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "matches"
 version = "0.1.8"
@@ -1099,13 +1093,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "memchr"
-version = "2.1.2"
+version = "2.2.0"
 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)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "memmap"
@@ -1143,7 +1132,7 @@ name = "mime"
 version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "unicase 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicase 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1215,13 +1204,13 @@ dependencies = [
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl 0.10.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl 0.10.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "schannel 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "security-framework 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "security-framework-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "tempfile 3.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "schannel 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "security-framework 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "security-framework-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1229,7 +1218,7 @@ name = "net2"
 version = "0.2.33"
 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)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1240,8 +1229,8 @@ version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1252,8 +1241,8 @@ version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1265,10 +1254,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "nom"
-version = "4.1.1"
+version = "4.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1294,7 +1284,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "num_cpus"
-version = "1.9.0"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1302,20 +1292,20 @@ dependencies = [
 
 [[package]]
 name = "opaque-debug"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "openssl"
-version = "0.10.16"
+version = "0.10.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1325,12 +1315,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.40"
+version = "0.9.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1353,7 +1344,7 @@ dependencies = [
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-extras 2.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1376,7 +1367,7 @@ dependencies = [
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1506,15 +1497,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "proc-macro2"
-version = "0.3.5"
-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)",
-]
-
-[[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)",
@@ -1532,44 +1515,24 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "quote"
-version = "0.5.2"
+version = "0.6.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "quote"
-version = "0.6.10"
-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 = "0.4.5"
+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)",
+ "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (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"
-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 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.2.2 (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 = "0.6.5"
@@ -1581,9 +1544,9 @@ dependencies = [
  "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_hc 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_isaac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_jitter 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_os 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_pcg 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_jitter 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1597,14 +1560,6 @@ dependencies = [
  "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "rand_core"
-version = "0.2.2"
-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 = "rand_core"
 version = "0.3.1"
@@ -1636,7 +1591,7 @@ dependencies = [
 
 [[package]]
 name = "rand_jitter"
-version = "0.1.1"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1646,11 +1601,11 @@ dependencies = [
 
 [[package]]
 name = "rand_os"
-version = "0.1.2"
+version = "0.1.3"
 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-cprng 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1659,11 +1614,11 @@ dependencies = [
 
 [[package]]
 name = "rand_pcg"
-version = "0.1.1"
+version = "0.1.2"
 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)",
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1680,7 +1635,7 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "either 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon-core 1.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1692,7 +1647,7 @@ dependencies = [
  "crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1705,7 +1660,7 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.1.50"
+version = "0.1.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1713,7 +1668,7 @@ name = "redox_termios"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "redox_syscall 0.1.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1723,25 +1678,25 @@ 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_os 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_os 0.1.3 (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 = "1.1.0"
+version = "1.1.2"
 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 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.0 (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 = "0.6.4"
+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)",
@@ -1760,14 +1715,14 @@ name = "reqwest"
 version = "0.9.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "base64 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "encoding_rs 0.8.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "encoding_rs 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "http 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.12.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "http 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.12.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper-tls 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libflate 0.1.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libflate 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime_guess 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1777,11 +1732,11 @@ dependencies = [
  "serde_urlencoded 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-executor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-threadpool 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-timer 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-threadpool 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-timer 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "uuid 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uuid 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1789,7 +1744,7 @@ name = "ring"
 version = "0.13.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1801,7 +1756,7 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "librocksdb-sys 5.14.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "librocksdb-sys 5.17.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1832,12 +1787,12 @@ name = "same-file"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "schannel"
-version = "0.1.14"
+version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1856,21 +1811,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "security-framework"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "core-foundation 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation-sys 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "security-framework-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "security-framework-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "security-framework-sys"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "MacTypes-sys 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "MacTypes-sys 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation-sys 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1901,9 +1856,9 @@ name = "serde_derive"
 version = "1.0.89"
 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 0.15.24 (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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1962,7 +1917,7 @@ dependencies = [
  "block-buffer 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "digest 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "fake-simd 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "opaque-debug 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "opaque-debug 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1977,20 +1932,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "smallvec"
-version = "0.6.7"
+version = "0.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "socket2"
 version = "0.3.8"
 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)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2587,11 +2539,11 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "0.15.24"
+version = "0.15.29"
 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)",
+ "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)",
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2608,9 +2560,9 @@ name = "synstructure"
 version = "0.10.1"
 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 0.15.24 (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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2619,19 +2571,19 @@ name = "sys-info"
 version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tempfile"
-version = "3.0.5"
+version = "3.0.7"
 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)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2650,7 +2602,7 @@ version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2676,7 +2628,7 @@ version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2688,17 +2640,17 @@ dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-codec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-current-thread 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-current-thread 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-executor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-fs 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-reactor 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-reactor 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-sync 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-tcp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-threadpool 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-timer 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-threadpool 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-timer 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-trace-core 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-udp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-uds 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2711,12 +2663,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tokio-current-thread"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2728,7 +2680,7 @@ name = "tokio-executor"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2738,13 +2690,13 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-threadpool 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-threadpool 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tokio-io"
-version = "0.1.11"
+version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2754,19 +2706,20 @@ dependencies = [
 
 [[package]]
 name = "tokio-reactor"
-version = "0.1.8"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-executor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-sync 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2787,31 +2740,32 @@ dependencies = [
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-reactor 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-reactor 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tokio-threadpool"
-version = "0.1.10"
+version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam-channel 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-deque 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-deque 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-queue 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-executor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tokio-timer"
-version = "0.2.8"
+version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
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- "tokio-reactor 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-reactor 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
@@ -2852,8 +2806,8 @@ dependencies = [
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- "tokio-reactor 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-reactor 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2896,7 +2850,7 @@ dependencies = [
 
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 source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -2912,8 +2866,11 @@ dependencies = [
 
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+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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@@ -2930,14 +2887,6 @@ name = "unicode-xid"
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-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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-
 [[package]]
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@@ -2960,10 +2909,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
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 [[package]]
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 [[package]]
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-version = "1.0.5"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -3040,7 +2990,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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+ "winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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@@ -3341,29 +3286,28 @@ dependencies = [
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diff --git a/core/src/blocktree.rs b/core/src/blocktree.rs
index bb40600d3..0d037d143 100644
--- a/core/src/blocktree.rs
+++ b/core/src/blocktree.rs
@@ -618,11 +618,11 @@ impl Blocktree {
     {
         blob_datas
             .iter()
-            .map(|blob_data| {
-                let serialized_entry_data = &blob_data.borrow()[BLOB_HEADER_SIZE..];
-                let entry: Entry = deserialize(serialized_entry_data)
+            .flat_map(|blob_data| {
+                let serialized_entries_data = &blob_data.borrow()[BLOB_HEADER_SIZE..];
+                let entries: Vec<Entry> = deserialize(serialized_entries_data)
                     .expect("Ledger should only contain well formed data");
-                entry
+                entries
             })
             .collect()
     }
@@ -1041,7 +1041,7 @@ pub mod tests {
     use crate::entry::{
         create_ticks, make_tiny_test_entries, make_tiny_test_entries_from_hash, Entry, EntrySlice,
     };
-    use crate::packet::index_blobs;
+    use crate::packet;
     use rand::seq::SliceRandom;
     use rand::thread_rng;
     use solana_sdk::hash::Hash;
@@ -1210,9 +1210,9 @@ pub mod tests {
 
     #[test]
     fn test_read_blobs_bytes() {
-        let shared_blobs = make_tiny_test_entries(10).to_shared_blobs();
+        let shared_blobs = make_tiny_test_entries(10).to_single_entry_shared_blobs();
         let slot = 0;
-        index_blobs(&shared_blobs, &Keypair::new().pubkey(), 0, slot, 0);
+        packet::index_blobs(&shared_blobs, &Keypair::new().pubkey(), 0, slot, 0);
 
         let blob_locks: Vec<_> = shared_blobs.iter().map(|b| b.read().unwrap()).collect();
         let blobs: Vec<&Blob> = blob_locks.iter().map(|b| &**b).collect();
@@ -1372,16 +1372,15 @@ pub mod tests {
             // Write entries
             let num_entries = 8;
             let entries = make_tiny_test_entries(num_entries);
-            let shared_blobs = entries.to_shared_blobs();
+            let mut blobs = entries.to_single_entry_blobs();
 
-            for (i, b) in shared_blobs.iter().enumerate() {
-                let mut w_b = b.write().unwrap();
-                w_b.set_index(1 << (i * 8));
-                w_b.set_slot(0);
+            for (i, b) in blobs.iter_mut().enumerate() {
+                b.set_index(1 << (i * 8));
+                b.set_slot(0);
             }
 
             blocktree
-                .write_shared_blobs(&shared_blobs)
+                .write_blobs(&blobs)
                 .expect("Expected successful write of blobs");
 
             let mut db_iterator = blocktree
@@ -1410,7 +1409,7 @@ pub mod tests {
         {
             let blocktree = Blocktree::open(&blocktree_path).unwrap();
             let entries = make_tiny_test_entries(8);
-            let mut blobs = entries.clone().to_blobs();
+            let mut blobs = entries.clone().to_single_entry_blobs();
             for (i, b) in blobs.iter_mut().enumerate() {
                 b.set_slot(1);
                 if i < 4 {
@@ -1448,7 +1447,7 @@ pub mod tests {
             for slot in 0..num_slots {
                 let entries = make_tiny_test_entries(slot as usize + 1);
                 let last_entry = entries.last().unwrap().clone();
-                let mut blobs = entries.clone().to_blobs();
+                let mut blobs = entries.clone().to_single_entry_blobs();
                 for b in blobs.iter_mut() {
                     b.set_index(index);
                     b.set_slot(slot as u64);
@@ -1466,6 +1465,39 @@ pub mod tests {
         Blocktree::destroy(&blocktree_path).expect("Expected successful database destruction");
     }
 
+    #[test]
+    pub fn test_get_slot_entries3() {
+        // Test inserting/fetching blobs which contain multiple entries per blob
+        let blocktree_path = get_tmp_ledger_path("test_get_slot_entries3");
+        {
+            let blocktree = Blocktree::open(&blocktree_path).unwrap();
+            let num_slots = 5 as u64;
+            let blobs_per_slot = 5 as u64;
+            let entry_serialized_size =
+                bincode::serialized_size(&make_tiny_test_entries(1)).unwrap();
+            let entries_per_slot =
+                (blobs_per_slot * packet::BLOB_DATA_SIZE as u64) / entry_serialized_size;
+
+            // Write entries
+            for slot in 0..num_slots {
+                let mut index = 0;
+                let entries = make_tiny_test_entries(entries_per_slot as usize);
+                let mut blobs = entries.clone().to_blobs();
+                assert_eq!(blobs.len() as u64, blobs_per_slot);
+                for b in blobs.iter_mut() {
+                    b.set_index(index);
+                    b.set_slot(slot as u64);
+                    index += 1;
+                }
+                blocktree
+                    .write_blobs(&blobs)
+                    .expect("Expected successful write of blobs");
+                assert_eq!(blocktree.get_slot_entries(slot, 0, None).unwrap(), entries,);
+            }
+        }
+        Blocktree::destroy(&blocktree_path).expect("Expected successful database destruction");
+    }
+
     #[test]
     pub fn test_insert_data_blobs_consecutive() {
         let blocktree_path = get_tmp_ledger_path("test_insert_data_blobs_consecutive");
@@ -2105,7 +2137,7 @@ pub mod tests {
         parent_slot: u64,
         is_full_slot: bool,
     ) -> Vec<Blob> {
-        let mut blobs = entries.clone().to_blobs();
+        let mut blobs = entries.clone().to_single_entry_blobs();
         for (i, b) in blobs.iter_mut().enumerate() {
             b.set_index(i as u64);
             b.set_slot(slot);
diff --git a/core/src/blocktree/rocks.rs b/core/src/blocktree/rocks.rs
index 35e13d978..dd594a44f 100644
--- a/core/src/blocktree/rocks.rs
+++ b/core/src/blocktree/rocks.rs
@@ -1,4 +1,4 @@
-use crate::entry::Entry;
+use crate::entry::{Entry, EntrySlice};
 use crate::packet::{Blob, BLOB_HEADER_SIZE};
 use crate::result::{Error, Result};
 
@@ -13,6 +13,7 @@ use rocksdb::{
 
 use solana_sdk::hash::Hash;
 
+use std::collections::VecDeque;
 use std::fs;
 use std::io;
 use std::path::Path;
@@ -64,6 +65,7 @@ pub struct EntryIterator {
     //   you have to hold the database open in order to iterate over it, and in order
     //   for db_iterator to be able to run Drop
     //    _blocktree: Blocktree,
+    entries: VecDeque<Entry>,
 }
 
 impl Blocktree {
@@ -127,6 +129,7 @@ impl Blocktree {
 
         db_iterator.seek_to_first();
         Ok(EntryIterator {
+            entries: VecDeque::new(),
             db_iterator,
             blockhash: None,
         })
@@ -378,15 +381,24 @@ impl Iterator for EntryIterator {
     type Item = Entry;
 
     fn next(&mut self) -> Option<Entry> {
+        if !self.entries.is_empty() {
+            return Some(self.entries.pop_front().unwrap());
+        }
+
         if self.db_iterator.valid() {
             if let Some(value) = self.db_iterator.value() {
-                if let Ok(entry) = deserialize::<Entry>(&value[BLOB_HEADER_SIZE..]) {
+                if let Ok(next_entries) = deserialize::<Vec<Entry>>(&value[BLOB_HEADER_SIZE..]) {
                     if let Some(blockhash) = self.blockhash {
-                        if !entry.verify(&blockhash) {
+                        if !next_entries.verify(&blockhash) {
                             return None;
                         }
                     }
                     self.db_iterator.next();
+                    if next_entries.is_empty() {
+                        return None;
+                    }
+                    self.entries = VecDeque::from(next_entries);
+                    let entry = self.entries.pop_front().unwrap();
                     self.blockhash = Some(entry.hash);
                     return Some(entry);
                 }
diff --git a/core/src/chacha.rs b/core/src/chacha.rs
index 7ea6085a1..f9d5bc9dc 100644
--- a/core/src/chacha.rs
+++ b/core/src/chacha.rs
@@ -164,7 +164,7 @@ mod tests {
         use bs58;
         //  golden needs to be updated if blob stuff changes....
         let golden = Hash::new(
-            &bs58::decode("C9hBb1U2Pck3jD5gDuh9gLFT9gJu1ess7DG99qQA9TND")
+            &bs58::decode("JCCiVjn5NJDkRzCF2QP2QXzKfk5nba7dyMG9W7yzZHBk")
                 .into_vec()
                 .unwrap(),
         );
diff --git a/core/src/db_window.rs b/core/src/db_window.rs
index 94c760bdb..328dc8ac4 100644
--- a/core/src/db_window.rs
+++ b/core/src/db_window.rs
@@ -174,7 +174,7 @@ mod test {
         assert_eq!(blocktree.find_missing_data_indexes(slot, 4, 3, 1), empty);
         assert_eq!(blocktree.find_missing_data_indexes(slot, 1, 2, 0), empty);
 
-        let mut blobs = make_tiny_test_entries(2).to_blobs();
+        let mut blobs = make_tiny_test_entries(2).to_single_entry_blobs();
 
         const ONE: u64 = 1;
         const OTHER: u64 = 4;
@@ -215,7 +215,7 @@ mod test {
         let gap = 10;
         assert!(gap > 3);
         let num_entries = 10;
-        let mut blobs = make_tiny_test_entries(num_entries).to_blobs();
+        let mut blobs = make_tiny_test_entries(num_entries).to_single_entry_blobs();
         for (i, b) in blobs.iter_mut().enumerate() {
             b.set_index(i as u64 * gap);
             b.set_slot(slot);
@@ -296,7 +296,8 @@ mod test {
 
         let num_entries_per_slot = 10;
         let num_slots = 2;
-        let mut blobs = make_tiny_test_entries(num_slots * num_entries_per_slot).to_blobs();
+        let mut blobs =
+            make_tiny_test_entries(num_slots * num_entries_per_slot).to_single_entry_blobs();
 
         // Insert every nth entry for each slot
         let nth = 3;
@@ -365,7 +366,7 @@ mod test {
 
         // Write entries
         let num_entries = 10;
-        let shared_blobs = make_tiny_test_entries(num_entries).to_shared_blobs();
+        let shared_blobs = make_tiny_test_entries(num_entries).to_single_entry_shared_blobs();
 
         index_blobs(&shared_blobs, &Keypair::new().pubkey(), 0, slot, 0);
 
diff --git a/core/src/entry.rs b/core/src/entry.rs
index fee696c5c..d1bece6f7 100644
--- a/core/src/entry.rs
+++ b/core/src/entry.rs
@@ -5,7 +5,7 @@
 use crate::packet::{Blob, SharedBlob, BLOB_DATA_SIZE};
 use crate::poh::Poh;
 use crate::result::Result;
-use bincode::{deserialize, serialize_into, serialized_size};
+use bincode::{deserialize, serialized_size};
 use chrono::prelude::Utc;
 use rayon::prelude::*;
 use solana_budget_api::budget_transaction::BudgetTransaction;
@@ -16,7 +16,6 @@ use solana_sdk::transaction::Transaction;
 use solana_vote_api::vote_instruction::Vote;
 use solana_vote_api::vote_transaction::VoteTransaction;
 use std::borrow::Borrow;
-use std::io::Cursor;
 use std::mem::size_of;
 use std::sync::mpsc::{Receiver, Sender};
 use std::sync::{Arc, RwLock};
@@ -102,14 +101,7 @@ impl Entry {
     }
 
     pub fn to_blob(&self) -> Blob {
-        let mut blob = Blob::default();
-        let pos = {
-            let mut out = Cursor::new(blob.data_mut());
-            serialize_into(&mut out, &self).expect("failed to serialize output");
-            out.position() as usize
-        };
-        blob.set_size(pos);
-        blob
+        Blob::from_serializable(&vec![&self])
     }
 
     /// Estimate serialized_size of Entry without creating an Entry.
@@ -197,15 +189,14 @@ where
     let mut num_ticks = 0;
 
     for blob in blobs.into_iter() {
-        let entry: Entry = {
+        let new_entries: Vec<Entry> = {
             let msg_size = blob.borrow().size();
             deserialize(&blob.borrow().data()[..msg_size])?
         };
 
-        if entry.is_tick() {
-            num_ticks += 1
-        }
-        entries.push(entry)
+        let num_new_ticks: u64 = new_entries.iter().map(|entry| entry.is_tick() as u64).sum();
+        num_ticks += num_new_ticks;
+        entries.extend(new_entries)
     }
     Ok((entries, num_ticks))
 }
@@ -216,6 +207,8 @@ pub trait EntrySlice {
     fn verify(&self, start_hash: &Hash) -> bool;
     fn to_shared_blobs(&self) -> Vec<SharedBlob>;
     fn to_blobs(&self) -> Vec<Blob>;
+    fn to_single_entry_blobs(&self) -> Vec<Blob>;
+    fn to_single_entry_shared_blobs(&self) -> Vec<SharedBlob>;
     fn votes(&self) -> Vec<(Pubkey, Vote, Hash)>;
 }
 
@@ -242,11 +235,30 @@ impl EntrySlice for [Entry] {
     }
 
     fn to_blobs(&self) -> Vec<Blob> {
-        self.iter().map(|entry| entry.to_blob()).collect()
+        split_serializable_chunks(
+            &self,
+            BLOB_DATA_SIZE as u64,
+            &|s| bincode::serialized_size(&s).unwrap(),
+            &mut |entries: &[Entry]| Blob::from_serializable(entries),
+        )
     }
 
     fn to_shared_blobs(&self) -> Vec<SharedBlob> {
-        self.iter().map(|entry| entry.to_shared_blob()).collect()
+        self.to_blobs()
+            .into_iter()
+            .map(|b| Arc::new(RwLock::new(b)))
+            .collect()
+    }
+
+    fn to_single_entry_shared_blobs(&self) -> Vec<SharedBlob> {
+        self.to_single_entry_blobs()
+            .into_iter()
+            .map(|b| Arc::new(RwLock::new(b)))
+            .collect()
+    }
+
+    fn to_single_entry_blobs(&self) -> Vec<Blob> {
+        self.iter().map(|entry| entry.to_blob()).collect()
     }
 
     fn votes(&self) -> Vec<(Pubkey, Vote, Hash)> {
@@ -422,7 +434,7 @@ pub fn make_consecutive_blobs(
 ) -> Vec<SharedBlob> {
     let entries = create_ticks(num_blobs_to_make, start_hash);
 
-    let blobs = entries.to_shared_blobs();
+    let blobs = entries.to_single_entry_shared_blobs();
     let mut index = start_height;
     for blob in &blobs {
         let mut blob = blob.write().unwrap();
@@ -596,7 +608,7 @@ mod tests {
     }
 
     #[test]
-    fn test_entries_to_shared_blobs() {
+    fn test_entries_to_blobs() {
         solana_logger::setup();
         let entries = make_test_entries();
 
@@ -605,6 +617,23 @@ mod tests {
         assert_eq!(reconstruct_entries_from_blobs(blob_q).unwrap().0, entries);
     }
 
+    #[test]
+    fn test_multiple_entries_to_blobs() {
+        solana_logger::setup();
+        let num_blobs = 10;
+        let serialized_size =
+            bincode::serialized_size(&make_tiny_test_entries_from_hash(&Hash::default(), 1))
+                .unwrap();
+
+        let num_entries = (num_blobs * BLOB_DATA_SIZE as u64) / serialized_size;
+        let entries = make_tiny_test_entries_from_hash(&Hash::default(), num_entries as usize);
+
+        let blob_q = entries.to_blobs();
+
+        assert_eq!(blob_q.len() as u64, num_blobs);
+        assert_eq!(reconstruct_entries_from_blobs(blob_q).unwrap().0, entries);
+    }
+
     #[test]
     fn test_bad_blobs_attack() {
         solana_logger::setup();
diff --git a/core/src/erasure.rs b/core/src/erasure.rs
index afaa8d957..b0471e0de 100644
--- a/core/src/erasure.rs
+++ b/core/src/erasure.rs
@@ -901,7 +901,7 @@ pub mod test {
     }
 
     fn generate_test_blobs(offset: usize, num_blobs: usize) -> Vec<SharedBlob> {
-        let blobs = make_tiny_test_entries(num_blobs).to_shared_blobs();
+        let blobs = make_tiny_test_entries(num_blobs).to_single_entry_shared_blobs();
 
         index_blobs(&blobs, &Keypair::new().pubkey(), offset as u64, 0, 0);
         blobs
diff --git a/core/src/packet.rs b/core/src/packet.rs
index b1e7ada4c..1470e37dd 100644
--- a/core/src/packet.rs
+++ b/core/src/packet.rs
@@ -363,6 +363,17 @@ impl Blob {
         blob
     }
 
+    pub fn from_serializable<T: Serialize + ?Sized>(data: &T) -> Self {
+        let mut blob = Self::default();
+        let pos = {
+            let mut out = Cursor::new(blob.data_mut());
+            bincode::serialize_into(&mut out, data).expect("failed to serialize output");
+            out.position() as usize
+        };
+        blob.set_size(pos);
+        blob
+    }
+
     pub fn parent(&self) -> u64 {
         LittleEndian::read_u64(&self.data[PARENT_RANGE])
     }