Upgrade rust crates and modernize hyper_hello (#3606)

7 files changed, 85 insertions, 475 deletions

diff --git a/Cargo.lock b/Cargo.lock
index f4ed61532..655aa8bb4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -17,14 +17,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "ansi_term"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "anyhow"
 version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -98,7 +90,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "blake2b_simd"
-version = "0.5.9"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -122,7 +114,6 @@ version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -196,36 +187,6 @@ version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "crossbeam-deque"
-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "crossbeam-epoch 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "crossbeam-epoch"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "memoffset 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "scopeguard 1.0.0 (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 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "crossbeam-utils"
 version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -235,16 +196,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "crossbeam-utils"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "ct-logs"
 version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -256,7 +207,7 @@ dependencies = [
 name = "deno"
 version = "0.28.1"
 dependencies = [
- "ansi_term 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "base64 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -269,8 +220,8 @@ dependencies = [
  "futures 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "fwdansi 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "http 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.12.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper-rustls 0.17.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.13.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper-rustls 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "indexmap 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -282,7 +233,7 @@ dependencies = [
  "remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.16.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustyline 5.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustyline 5.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -377,11 +328,6 @@ version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "either"
-version = "1.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
 name = "encoding_rs"
 version = "0.8.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -403,9 +349,9 @@ name = "failure_derive"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -467,15 +413,6 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "futures-cpupool"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "futures-executor"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -497,9 +434,9 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -553,23 +490,6 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.1.26"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "byteorder 1.3.2 (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 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "http 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "indexmap 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "string 0.2.1 (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 = "h2"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -596,7 +516,7 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.5"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -604,16 +524,6 @@ dependencies = [
 
 [[package]]
 name = "http"
-version = "0.1.21"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "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)",
- "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "http"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -624,17 +534,6 @@ dependencies = [
 
 [[package]]
 name = "http-body"
-version = "0.1.0"
-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 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "http 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-buf 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "http-body"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -649,35 +548,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "hyper"
-version = "0.12.35"
-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 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "h2 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "http 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "http-body 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "httparse 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (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 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-buf 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-executor 0.1.9 (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 0.1.11 (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 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-timer 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "want 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "hyper"
 version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -701,22 +571,6 @@ dependencies = [
 
 [[package]]
 name = "hyper-rustls"
-version = "0.17.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "ct-logs 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.12.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustls 0.16.0 (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 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "webpki 0.21.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "webpki-roots 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "hyper-rustls"
 version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -735,8 +589,8 @@ dependencies = [
 name = "hyper_hello"
 version = "0.0.1"
 dependencies = [
- "hyper 0.12.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "ring 0.16.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.13.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -798,14 +652,6 @@ version = "0.2.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "lock_api"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "log"
 version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -819,24 +665,11 @@ version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "maybe-uninit"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
 name = "memchr"
 version = "2.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "memoffset"
-version = "0.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "mime"
 version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -945,7 +778,7 @@ name = "num_cpus"
 version = "1.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hermit-abi 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hermit-abi 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -964,30 +797,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "parking_lot"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "lock_api 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot_core 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "percent-encoding"
 version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1005,9 +814,9 @@ name = "pin-project-internal"
 version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1030,9 +839,9 @@ name = "proc-macro-hack"
 version = "0.5.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1050,7 +859,7 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.6"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1069,7 +878,7 @@ name = "quote"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1250,7 +1059,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "blake2b_simd 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "blake2b_simd 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-utils 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1260,14 +1069,6 @@ version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "rustc_version"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "rustls"
 version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1304,7 +1105,7 @@ dependencies = [
 
 [[package]]
 name = "rustyline"
-version = "5.0.5"
+version = "5.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1334,11 +1135,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "scopeguard"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
 name = "sct"
 version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1367,19 +1163,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "semver"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "semver-parser"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
 name = "serde"
 version = "1.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1392,9 +1175,9 @@ name = "serde_derive"
 version = "1.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1435,14 +1218,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "smallvec"
-version = "0.6.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "smallvec"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
@@ -1477,14 +1252,6 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "string"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "strsim"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1501,10 +1268,10 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.11"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1514,9 +1281,9 @@ name = "synstructure"
 version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1587,23 +1354,6 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "0.1.22"
-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 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-current-thread 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-executor 0.1.9 (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 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-threadpool 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-timer 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "tokio"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -1626,25 +1376,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "tokio-buf"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "tokio-current-thread"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-executor 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "tokio-executor"
 version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1669,38 +1400,7 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "tokio-reactor"
-version = "0.1.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "crossbeam-utils 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-executor 0.1.9 (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 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
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-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustls 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "webpki 0.21.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1716,55 +1416,6 @@ dependencies = [
 ]
 
 [[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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-dependencies = [
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- "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.21 (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 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
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-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "crossbeam-utils 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-executor 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
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-
-[[package]]
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-dependencies = [
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- "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-executor 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1888,16 +1539,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "want"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
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-
-[[package]]
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@@ -1929,9 +1570,9 @@ dependencies = [
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  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-shared 0.2.56 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1960,9 +1601,9 @@ name = "wasm-bindgen-macro-support"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-backend 0.2.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-shared 0.2.56 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1980,9 +1621,9 @@ dependencies = [
  "anyhow 1.0.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-backend 0.2.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "weedle 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2099,7 +1740,6 @@ dependencies = [
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 "checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
-"checksum ansi_term 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
 "checksum anyhow 1.0.26 (registry+https://github.com/rust-lang/crates.io-index)" = "7825f6833612eb2414095684fcf6c635becf3ce97fe48cf6421321e93bfbd53c"
 "checksum arc-swap 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d7b8a9123b8027467bce0099fe556c628a53c8d83df0507084c31e9ba2e39aff"
 "checksum arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "0d382e583f07208808f6b1249e60848879ba3543f57c32277bf52d69c2f0f0ee"
@@ -2111,7 +1751,7 @@ dependencies = [
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 "checksum base64 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b41b7ea54a0c9d92199de89e20e58d49f02f8e699814ef3fdf266f6f748d15c7"
 "checksum bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
-"checksum blake2b_simd 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b83b7baab1e671718d78204225800d6b170e648188ac7dc992e9d6bddf87d0c0"
+"checksum blake2b_simd 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)" = "d8fb2d74254a3a0b5cac33ac9f8ed0e44aa50378d9dbb2e5d83bd21ed1dc2c8a"
 "checksum bumpalo 2.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ad807f2fc2bf185eeb98ff3a901bd46dc5ad58163d0fa4577ba0d25674d71708"
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 "checksum bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)" = "206fdffcfa2df7cbe15601ef46c813fce0965eb3286db6b56c583b814b51c81c"
@@ -2125,11 +1765,7 @@ dependencies = [
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 "checksum core-foundation 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "25b9e03f145fd4f2bf705e07b900cd41fc636598fe5dc452fd0db1441c3f496d"
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-"checksum crossbeam-deque 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c3aa945d63861bfe624b55d153a39684da1e8c0bc8fba932f7ee3a3c16cea3ca"
-"checksum crossbeam-epoch 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5064ebdbf05ce3cb95e45c8b086f72263f4166b29b97f6baff7ef7fe047b55ac"
-"checksum crossbeam-queue 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7c979cd6cfe72335896575c6b5688da489e420d36a27a0b9eb0c73db574b4a4b"
 "checksum crossbeam-utils 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "04973fa96e96579258a5091af6003abde64af786b860f18622b82e026cca60e6"
-"checksum crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ce446db02cdc3165b94ae73111e570793400d0794e46125cc4056c81cbb039f4"
 "checksum ct-logs 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4d3686f5fa27dbc1d76c751300376e167c5a43387f44bb451fd1c24776e49113"
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 "checksum dirs-sys 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "afa0b23de8fd801745c471deffa6e12d248f962c9fd4b4c33787b055599bde7b"
@@ -2137,7 +1773,6 @@ dependencies = [
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 "checksum downcast-rs 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "52ba6eb47c2131e784a38b726eb54c1e1484904f013e576a25354d0124161af6"
 "checksum dtoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ea57b42383d091c85abcc2706240b94ab2a8fa1fc81c10ff23c4de06e2a90b5e"
-"checksum either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "bb1f6b1ce1c140482ea30ddd3335fc0024ac7ee112895426e0a629a6c20adfe3"
 "checksum encoding_rs 0.8.22 (registry+https://github.com/rust-lang/crates.io-index)" = "cd8d03faa7fe0c1431609dfad7bbe827af30f82e1e2ae6f7ee4fca6bd764bc28"
 "checksum failure 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "f8273f13c977665c5db7eb2b99ae520952fe5ac831ae4cd09d80c4c7042b5ed9"
 "checksum failure_derive 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0bc225b78e0391e4b8683440bf2e63c2deeeb2ce5189eab46e2b68c6d3725d08"
@@ -2149,7 +1784,6 @@ dependencies = [
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 "checksum futures-channel 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fcae98ca17d102fd8a3603727b9259fcf7fa4239b603d2142926189bc8999b86"
 "checksum futures-core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "79564c427afefab1dfb3298535b21eda083ef7935b4f0ecbfcb121f0aec10866"
-"checksum futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "ab90cde24b3319636588d0c35fe03b1333857621051837ed769faefb4c2162e4"
 "checksum futures-executor 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1e274736563f686a837a0568b478bdabfeaec2dca794b5649b04e2fe1627c231"
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@@ -2158,18 +1792,13 @@ dependencies = [
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 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
-"checksum want 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b6395efa4784b027708f7451087e647ec73cc74f5d9bc2e418404248d679a230"
 "checksum want 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
 "checksum wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b89c3ce4ce14bdc6fb6beaf9ec7928ca331de5df7e5ea278375642a2f478570d"
 "checksum wasm-bindgen 0.2.56 (registry+https://github.com/rust-lang/crates.io-index)" = "99de4b68939a880d530aed51289a7c7baee154e3ea8ac234b542c49da7134aaf"
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index 2f96f0b4b..e9e1b539d 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -25,46 +25,46 @@ deno_typescript = { path = "../deno_typescript", version = "0.28.1" }
 deno_core = { path = "../core", version = "0.28.1" }
 deno_typescript = { path = "../deno_typescript", version = "0.28.1" }
 
-ansi_term = "0.12.1"
+ansi_term = "0.11.0"
 atty = "0.2.13"
 base64 = "0.11.0"
-bytes = "0.5"
+bytes = "0.5.3"
 byteorder = "1.3.2"
 clap = "2.33.0"
 dirs = "2.0.2"
 dlopen = "0.1.8"
-futures = { version = "0.3", features = [ "compat", "io-compat" ] }
-http = "0.2"
-hyper = "0.12.35"
-hyper-rustls = "0.17.1"
+futures = { version = "0.3.1", features = [ "compat", "io-compat" ] }
+http = "0.2.0"
+hyper = "0.13.1"
+hyper-rustls = "0.19.0"
 indexmap = "1.3.0"
 lazy_static = "1.4.0"
-libc = "0.2.65"
+libc = "0.2.66"
 log = "0.4.8"
 rand = "0.7.2"
 regex = "1.3.1"
 remove_dir_all = "0.5.2"
 reqwest = { version = "0.10.0", default-features = false, features = ["rustls-tls", "stream"] }
 ring = "0.16.9"
-rustyline = "5.0.4"
-serde = { version = "1.0.102", features = ["derive"] }
-serde_derive = "1.0.102"
-serde_json = { version = "1.0.41", features = [ "preserve_order" ] }
+rustyline = "5.0.6"
+serde = { version = "1.0.104", features = ["derive"] }
+serde_derive = "1.0.104"
+serde_json = { version = "1.0.44", features = [ "preserve_order" ] }
 source-map-mappings = "0.5.0"
 sys-info = "0.5.8"
 tempfile = "3.1.0"
 termcolor = "1.0.5"
 tokio = { version = "0.2.6", features = ["full"] }
-tokio-executor = "0.1.8"
-tokio-rustls = "0.12.0"
-url = "2.1"
+tokio-executor = "0.1.9"
+tokio-rustls = "0.12.1"
+url = "2.1.0"
 utime = "0.2.1"
 webpki = "0.21.0"
 webpki-roots = "0.17.0"
 
 [target.'cfg(windows)'.dependencies]
 winapi = "0.3.8"
-fwdansi = "1.0.1"
+fwdansi = "1.1.0"
 
 [target.'cfg(unix)'.dependencies]
 nix = "0.14.1"
diff --git a/core/Cargo.toml b/core/Cargo.toml
index b25a9d0c5..51232a2be 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -15,12 +15,12 @@ path = "lib.rs"
 
 [dependencies]
 downcast-rs = "1.1.1"
-futures = { version = "0.3", features = [ "thread-pool", "compat" ] }
+futures = { version = "0.3.1", features = [ "thread-pool", "compat" ] }
 lazy_static = "1.4.0"
-libc = "0.2.65"
+libc = "0.2.66"
 log = "0.4.8"
-serde_json = "1.0.41"
-url = "2.1"
+serde_json = "1.0.44"
+url = "2.1.0"
 rusty_v8 = "0.0.23"
 
 [[example]]
diff --git a/deno_typescript/Cargo.toml b/deno_typescript/Cargo.toml
index 54cb495dd..113f3a716 100644
--- a/deno_typescript/Cargo.toml
+++ b/deno_typescript/Cargo.toml
@@ -20,5 +20,5 @@ path = "lib.rs"
 
 [dependencies]
 deno_core = { path = "../core", version = "0.28.1" }
-serde_json = "1.0.41"
-serde = { version = "1.0.102", features = ["derive"] }
+serde_json = "1.0.44"
+serde = { version = "1.0.104", features = ["derive"] }
diff --git a/test_plugin/Cargo.toml b/test_plugin/Cargo.toml
index 902a463cf..d9dce0434 100644
--- a/test_plugin/Cargo.toml
+++ b/test_plugin/Cargo.toml
@@ -9,6 +9,6 @@ publish = false
 crate-type = ["cdylib"]
 
 [dependencies]
-futures = "0.3"
+futures = "0.3.1"
 deno_core = { path = "../core" }
 deno = { path = "../cli" }
diff --git a/tools/hyper_hello/Cargo.toml b/tools/hyper_hello/Cargo.toml
index 3c47b3bc2..af0b7333b 100644
--- a/tools/hyper_hello/Cargo.toml
+++ b/tools/hyper_hello/Cargo.toml
@@ -1,10 +1,11 @@
 [package]
 name = "hyper_hello"
 version = "0.0.1"
+edition = "2018"
 
 [dependencies]
-hyper = "0.12.35"
-ring = "0.16.9"
+hyper = "0.13.1"
+tokio = { version = "0.2.6", features = ["full"] }
 
 [[bin]]
 name = "hyper_hello"
diff --git a/tools/hyper_hello/hyper_hello.rs b/tools/hyper_hello/hyper_hello.rs
index 9491b0750..bf786abf9 100644
--- a/tools/hyper_hello/hyper_hello.rs
+++ b/tools/hyper_hello/hyper_hello.rs
@@ -2,16 +2,18 @@
 // Adapted from https://github.com/hyperium/hyper/blob/master/examples/hello.rs
 
 #![deny(warnings)]
-extern crate hyper;
 
-use hyper::rt::{self, Future};
-use hyper::service::service_fn_ok;
-use hyper::{Body, Response, Server};
+use std::convert::Infallible;
 use std::env;
+use std::error::Error;
+
+use hyper::service::{make_service_fn, service_fn};
+use hyper::{Body, Response, Server};
 
-static PHRASE: &[u8] = b"Hello World!";
+type Just<T> = Result<T, Infallible>;
 
-fn main() {
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn Error>> {
   let mut port: u16 = 4544;
   if let Some(custom_port) = env::args().nth(1) {
     port = custom_port.parse::<u16>().unwrap();
@@ -19,21 +21,20 @@ fn main() {
 
   let addr = ([127, 0, 0, 1], port).into();
 
-  // new_service is run for each connection, creating a 'service'
-  // to handle requests for that specific connection.
-  let new_service = || {
+  // For every connection, we must make a `Service` to handle all
+  // incoming HTTP requests on said connection.
+  let new_service = make_service_fn(|_| {
     // This is the `Service` that will handle the connection.
-    // `service_fn_ok` is a helper to convert a function that
+    // `service_fn` is a helper to convert a function that
     // returns a Response into a `Service`.
-    service_fn_ok(|_| Response::new(Body::from(PHRASE)))
-  };
-
-  let server = Server::bind(&addr)
-    .tcp_nodelay(true)
-    .serve(new_service)
-    .map_err(|e| eprintln!("server error: {}", e));
-
+    async {
+      Just::Ok(service_fn(|_req| {
+        async { Just::Ok(Response::new(Body::from(&b"Hello World!"[..]))) }
+      }))
+    }
+  });
+
+  let server = Server::bind(&addr).tcp_nodelay(true).serve(new_service);
   println!("Listening on http://{}", addr);
-
-  rt::run(server);
+  Ok(server.await?)
 }