diff --git a/Cargo.lock b/Cargo.lock
index 3618fdc85c..c5b365a24c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -43,26 +43,26 @@ name = "atty"
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "termion 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "autocfg"
-version = "0.1.2"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "backtrace"
-version = "0.3.17"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 0.1.4 (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 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-demangle 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-demangle 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -71,7 +71,7 @@ version = "0.1.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -201,7 +201,7 @@ version = "0.7.0"
 dependencies = [
  "futures 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -215,7 +215,7 @@ dependencies = [
  "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "deno 0.7.0",
- "dirs 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dirs 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "flatbuffers 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "http 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -223,25 +223,25 @@ dependencies = [
  "hyper-rustls 0.16.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "integer-atomics 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "nix 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.14.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustyline 4.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustyline 4.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "source-map-mappings 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempfile 3.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-executor 0.1.7 (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 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-process 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-rustls 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-rustls 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-threadpool 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "utime 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -253,7 +253,27 @@ name = "dirs"
 version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_users 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "dirs"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dirs-sys 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_users 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -268,7 +288,7 @@ name = "failure"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -412,7 +432,7 @@ dependencies = [
  "hyper 0.12.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustls 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-rustls 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-rustls 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "webpki 0.19.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "webpki-roots 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -442,7 +462,7 @@ name = "iovec"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -467,7 +487,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.54"
+version = "0.2.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -504,14 +524,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "mio"
-version = "0.6.17"
+version = "0.6.19"
 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-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -525,7 +545,7 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -536,8 +556,8 @@ version = "0.6.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -566,7 +586,7 @@ version = "0.2.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -578,7 +598,7 @@ dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -592,7 +612,7 @@ name = "num_cpus"
 version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -622,7 +642,7 @@ name = "parking_lot_core"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (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 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -656,7 +676,7 @@ version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (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 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -667,8 +687,8 @@ name = "rand"
 version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_chacha 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "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)",
@@ -685,7 +705,7 @@ name = "rand_chacha"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -723,7 +743,7 @@ name = "rand_jitter"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -735,7 +755,7 @@ 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 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (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)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -746,7 +766,7 @@ name = "rand_pcg"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -825,7 +845,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "spin 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -833,7 +853,7 @@ dependencies = [
 
 [[package]]
 name = "rustc-demangle"
-version = "0.1.14"
+version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -859,11 +879,11 @@ dependencies = [
 
 [[package]]
 name = "rustyline"
-version = "4.0.0"
+version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dirs 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "nix 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -940,7 +960,7 @@ name = "signal-hook"
 version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "signal-hook-registry 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -950,7 +970,7 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "arc-swap 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -969,7 +989,7 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1026,11 +1046,11 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.0.7"
+version = "3.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1042,7 +1062,7 @@ name = "termion"
 version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "numtoa 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1069,7 +1089,7 @@ name = "time"
 version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1081,7 +1101,7 @@ 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 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.19 (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 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1162,8 +1182,8 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-named-pipes 0.1.6 (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)",
@@ -1180,7 +1200,7 @@ dependencies = [
  "futures 0.1.27 (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 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.19 (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)",
@@ -1191,7 +1211,7 @@ dependencies = [
 
 [[package]]
 name = "tokio-rustls"
-version = "0.9.2"
+version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1206,8 +1226,8 @@ version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-uds 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "signal-hook 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-executor 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1233,7 +1253,7 @@ dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.19 (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)",
 ]
@@ -1281,7 +1301,7 @@ dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-codec 0.1.1 (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)",
@@ -1295,9 +1315,9 @@ dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-uds 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-codec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1376,7 +1396,7 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1468,8 +1488,8 @@ dependencies = [
 "checksum argon2rs 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "3f67b0b6a86dae6e67ff4ca2b6201396074996379fba2b92ff649126f37cb392"
 "checksum arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "92c7fb76bc8826a8b33b4ee5bb07a247a81e76764ab4d55e8f73e3a4d8808c71"
 "checksum atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "9a7d5b8723950951411ee34d271d99dddcc2035a16ab25310ea2c8cfd4369652"
-"checksum autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a6d640bee2da49f60a4068a7fae53acde8982514ab7bae8b8cea9e88cbcfd799"
-"checksum backtrace 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)" = "70af6de4789ac39587f100176ac7f704531e9e534b0f8676f658b3d909ce9a94"
+"checksum autocfg 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "0e49efa51329a5fd37e7c79db4621af617cd4e3e5bc224939808d076077077bf"
+"checksum backtrace 0.3.26 (registry+https://github.com/rust-lang/crates.io-index)" = "1a13fc43f04daf08ab4f71e3d27e1fc27fc437d3e95ac0063a796d92fb40f39b"
 "checksum backtrace-sys 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)" = "797c830ac25ccc92a7f8a7b9862bde440715531514594a6154e3d4a54dd769b6"
 "checksum base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0b25d992356d2eb0ed82172f5248873db5560c4721f564b13cb5193bda5e668e"
 "checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
@@ -1487,6 +1507,8 @@ dependencies = [
 "checksum crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)" = "f8306fcef4a7b563b76b7dd949ca48f52bc1141aa067d2ea09565f3e2652aa5c"
 "checksum ct-logs 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1b4660f8b07a560a88c02d76286edb9f0d5d64e495d2b0f233186155aa51be1f"
 "checksum dirs 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "3fd78930633bd1c6e35c4b42b1df7b0cbc6bc191146e512bb3bedf243fcc3901"
+"checksum dirs 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e07ec6ad2c793a14517d70f1b7043ed5a9403f4f785a799032da6a7bcdd80ddb"
+"checksum dirs-sys 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "73bb611ac139e1bd12463cfad795e5d615144c4973ccc2329d8900a9ade944de"
 "checksum either 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "5527cfe0d098f36e3f8839852688e63c8fff1c90b2b405aef730615f9a7bcf7b"
 "checksum failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "795bd83d3abeb9220f257e597aa0080a508b27533824adf336529648f6abf7e2"
 "checksum failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "ea1063915fd7ef4309e222a5a07cf9c319fb9c7836b1f89b85458672dbb127e1"
@@ -1510,13 +1532,13 @@ dependencies = [
 "checksum itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "501266b7edd0174f8530248f87f99c88fbe60ca4ef3dd486835b8d8d53136f7f"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
-"checksum libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)" = "c6785aa7dd976f5fbf3b71cfd9cd49d7f783c1ff565a858d71031c6c313aa5c6"
+"checksum libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)" = "42914d39aad277d9e176efbdad68acb1d5443ab65afe0e0e4f0d49352a950880"
 "checksum lock_api 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "62ebf1391f6acad60e5c8b43706dde4582df75c06698ab44511d15016bc2442c"
 "checksum log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c84ec4b527950aa83a329754b01dbe3f58361d1c5efacd1f6d68c494d08a17c6"
 "checksum matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 "checksum memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2efc7bc57c883d4a4d6e3246905283d8dae951bb3bd32f49d6ef297f546e1c39"
 "checksum memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0f9dc261e2b62d7a622bf416ea3c5245cdd5d9a7fcc428c0d06804dfce1775b3"
-"checksum mio 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)" = "049ba5ca2b63e837adeee724aa9e36b408ed593529dcc802aa96ca14bd329bdf"
+"checksum mio 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)" = "83f51996a3ed004ef184e16818edc51fadffe8e7ca68be67f9dee67d84d0ff23"
 "checksum mio-named-pipes 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "f5e374eff525ce1c5b7687c4cef63943e7686524a387933ad27ca7ec43779cb3"
 "checksum mio-uds 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)" = "966257a94e196b11bb43aca423754d87429960a768de9414f3691d6957abf125"
 "checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
@@ -1551,10 +1573,10 @@ dependencies = [
 "checksum regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "dcfd8681eebe297b81d98498869d4aae052137651ad7b96822f09ceb690d0a96"
 "checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
 "checksum ring 0.14.6 (registry+https://github.com/rust-lang/crates.io-index)" = "426bc186e3e95cac1e4a4be125a4aca7e84c2d616ffc02244eef36e2a60a093c"
-"checksum rustc-demangle 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "ccc78bfd5acd7bf3e89cffcf899e5cb1a52d6fafa8dec2739ad70c9577a57288"
+"checksum rustc-demangle 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)" = "a7f4dccf6f4891ebcc0c39f9b6eb1a83b9bf5d747cb439ec6fba4f3b977038af"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
 "checksum rustls 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f271e3552cd835fa28c541c34a7e8fdd8cdff09d77fe4eb8f6c42e87a11b096e"
-"checksum rustyline 4.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cf0a3bbb3167469f834da68a6636b93d4f6838f5438dd53ac02668abee8b997a"
+"checksum rustyline 4.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0f47ea1ceb347d2deae482d655dc8eef4bd82363d3329baffa3818bd76fea48b"
 "checksum ryu 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "b96a9549dc8d48f2c283938303c4b5a77aa29bfbc5b54b084fb1630408899a8f"
 "checksum scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "1d51f5df5af43ab3f1360b429fa5e0152ac5ce8c0bd6485cae490332e96846a8"
 "checksum scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "94258f53601af11e6a49f722422f6e3425c52b06245a5cf9bc09908b174f5e27"
@@ -1576,7 +1598,7 @@ dependencies = [
 "checksum strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 "checksum syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)" = "a1393e4a97a19c01e900df2aec855a29f71cf02c402e2f443b8d2747c25c5dbe"
 "checksum synstructure 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "02353edf96d6e4dc81aea2d8490a7e9db177bf8acb0e951c24940bf866cb313f"
-"checksum tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)" = "b86c784c88d98c801132806dadd3819ed29d8600836c4088e855cdf3e178ed8a"
+"checksum tempfile 3.0.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7dc4738f2e68ed2855de5ac9cdbe05c9216773ecde4739b2f095002ab03a13ef"
 "checksum termion 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dde0593aeb8d47accea5392b39350015b5eccb12c0d98044d856983d89548dea"
 "checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
@@ -1590,7 +1612,7 @@ dependencies = [
 "checksum tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "5090db468dad16e1a7a54c8c67280c5e4b544f3d3e018f0b913b400261f85926"
 "checksum tokio-process 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "88e1281e412013f1ff5787def044a9577a0bed059f451e835f1643201f8b777d"
 "checksum tokio-reactor 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "6af16bfac7e112bea8b0442542161bfc41cbfa4466b580bdda7d18cb88b911ce"
-"checksum tokio-rustls 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c2d884c693406aba65fdd9fe7645b50e4dd0d24b36bc5e66ec8209d2482da99d"
+"checksum tokio-rustls 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1600e90b2602df28ff54ae842519b408fbb25378c3c5aee1b795593e9263dc80"
 "checksum tokio-signal 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "dd6dc5276ea05ce379a16de90083ec80836440d5ef8a6a39545a3207373b8296"
 "checksum tokio-sync 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "5b2f843ffdf8d6e1f90bddd48da43f99ab071660cd92b7ec560ef3cdfd7a409a"
 "checksum tokio-tcp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1d14b10654be682ac43efee27401d792507e30fd8d26389e1da3b185de2e4119"
diff --git a/build_extra/rust/BUILD.gn b/build_extra/rust/BUILD.gn
index 610fb3cb23..1dcc5dfb7c 100644
--- a/build_extra/rust/BUILD.gn
+++ b/build_extra/rust/BUILD.gn
@@ -226,16 +226,30 @@ rust_rlib("ct_logs") {
 
 rust_rlib("dirs") {
   edition = "2015"
-  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/dirs-1.0.5/src/lib.rs"
+  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/dirs-2.0.0/src/lib.rs"
+  extern_rlib = [
+    "cfg_if",
+    "dirs_sys",
+  ]
+  args = [
+    "--cap-lints",
+    "allow",
+  ]
+}
+
+rust_rlib("dirs_sys") {
+  edition = "2015"
+  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/dirs-sys-0.3.1/src/lib.rs"
+  extern_rlib = [ "cfg_if" ]
   args = [
     "--cap-lints",
     "allow",
   ]
   if (is_posix) {
-    extern_rlib = [ "libc" ]
+    extern_rlib += [ "libc" ]
   }
   if (is_win) {
-    extern_rlib = [ "winapi" ]
+    extern_rlib += [ "winapi" ]
   }
 }
 
@@ -520,7 +534,7 @@ rust_rlib("lazy_static") {
 
 rust_rlib("libc") {
   edition = "2015"
-  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.54/src/lib.rs"
+  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.55/src/lib.rs"
   features = [
     "default",
     "use_std",
@@ -609,7 +623,7 @@ rust_rlib("memoffset") {
 
 rust_rlib("mio") {
   edition = "2015"
-  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/mio-0.6.17/src/lib.rs"
+  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/mio-0.6.19/src/lib.rs"
   features = [
     "default",
     "with-deprecated",
@@ -1167,24 +1181,36 @@ rust_rlib("rustls") {
 }
 
 rust_rlib("rustyline") {
-  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/rustyline-4.0.0/src/lib.rs"
+  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/rustyline-4.1.0/src/lib.rs"
   features = [
     "default",
     "dirs",
     "with-dirs",
   ]
   extern_rlib = [
-    "dirs",
     "libc",
     "log",
     "memchr",
     "unicode_segmentation",
     "unicode_width",
+
+    # Override: use dirs v2.0.0 instead of v1.0.5.
+    "dirs",
   ]
   args = [
     "--cap-lints",
     "allow",
   ]
+
+  ## Override: use dirs v2.0.0 instead of v1.0.5.
+  # extern = [
+  #   {
+  #     label = ":dirs-1.0.5"
+  #     crate_name = "dirs"
+  #     crate_type = "rlib"
+  #     crate_version = "1.0.5"
+  #   },
+  # ]
   if (is_posix) {
     extern_rlib += [
       "nix",
@@ -1411,7 +1437,7 @@ rust_rlib("syn") {
 
 rust_rlib("tempfile") {
   edition = "2015"
-  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/tempfile-3.0.7/src/lib.rs"
+  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/tempfile-3.0.8/src/lib.rs"
   extern_rlib = [
     "cfg_if",
     "rand",
@@ -1660,7 +1686,7 @@ rust_rlib("tokio_reactor") {
 
 rust_rlib("tokio_rustls") {
   edition = "2015"
-  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/tokio-rustls-0.9.2/src/lib.rs"
+  source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/tokio-rustls-0.9.3/src/lib.rs"
   features = [
     "default",
     "futures",
@@ -1970,6 +1996,24 @@ rust_rlib("webpki_roots") {
   ]
 }
 
+## Override: use dirs v2.0.0 instead.
+# rust_rlib("dirs-1.0.5") {
+#   crate_name = "dirs"
+#   crate_version = "1.0.5"
+#   edition = "2015"
+#   source_root = "$cargo_home/registry/src/github.com-1ecc6299db9ec823/dirs-1.0.5/src/lib.rs"
+#   args = [
+#     "--cap-lints",
+#     "allow",
+#   ]
+#   if (is_posix) {
+#     extern_rlib = [ "libc" ]
+#   }
+#   if (is_win) {
+#     extern_rlib = [ "winapi" ]
+#   }
+# }
+
 ## Override: use rand v0.6.5 instead.
 # rust_rlib("rand-0.4.6") {
 #   crate_name = "rand"
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index 1450ce7b2a..82b0a47eb9 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -21,7 +21,7 @@ deno = { path = "../core" }
 ansi_term = "0.11.0"
 atty = "0.2.11"
 clap = "2.33.0"
-dirs = "1.0.5"
+dirs = "2.0.0"
 flatbuffers = "0.6.0"
 futures = "0.1.27"
 http = "0.1.17"
@@ -29,24 +29,24 @@ hyper = "0.12.29"
 hyper-rustls = "0.16.1"
 integer-atomics = "1.0.2"
 lazy_static = "1.3.0"
-libc = "0.2.54"
+libc = "0.2.55"
 log = "0.4.6"
 rand = "0.6.5"
 regex = "1.1.6"
 remove_dir_all = "0.5.1"
 ring = "0.14.6"
-rustyline = "4.0.0"
+rustyline = "4.1.0"
 serde = "1.0.91"
 serde_derive = "1.0.91"
 serde_json = "1.0.39"
 source-map-mappings = "0.5.0"
-tempfile = "3.0.7"
+tempfile = "3.0.8"
 tokio = "0.1.20"
 tokio-executor = "0.1.7"
 tokio-fs = "0.1.6"
 tokio-io = "0.1.12"
 tokio-process = "0.2.3"
-tokio-rustls = "0.9.2"
+tokio-rustls = "0.9.3"
 tokio-threadpool = "0.1.14"
 url = "1.7.2"
 utime = "0.2.1"
@@ -55,4 +55,4 @@ utime = "0.2.1"
 winapi = "0.3.7"
 
 [target.'cfg(unix)'.dependencies]
-nix = "0.13.0"
+nix = "0.13.x"
diff --git a/core/Cargo.toml b/core/Cargo.toml
index fdd4585349..7e1c7ff4d9 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -16,7 +16,7 @@ path = "lib.rs"
 [dependencies]
 futures = "0.1.27"
 lazy_static = "1.3.0"
-libc = "0.2.54"
+libc = "0.2.55"
 log = "0.4.6"
 serde_json = "1.0.39"
 
diff --git a/third_party b/third_party
index d6515fbb3d..7ad9fa3dac 160000
--- a/third_party
+++ b/third_party
@@ -1 +1 @@
-Subproject commit d6515fbb3de70bee06ef9dc602ea59fdfcf01866
+Subproject commit 7ad9fa3dac6d1bc64a242902f7d10357d3c97647