From 268dd0036649bedbe3284abbacc7f832a4c30f22 Mon Sep 17 00:00:00 2001
From: Jim Blandy <jimb@red-bean.com>
Date: Mon, 20 Jun 2022 23:28:39 -0700
Subject: [PATCH] Update actix-gcd example to use actix-web 4.1.

---
 actix-gcd/Cargo.lock  | 1442 ++++++++++++-----------------------------
 actix-gcd/Cargo.toml  |    2 +-
 actix-gcd/src/main.rs |   11 +-
 3 files changed, 436 insertions(+), 1019 deletions(-)

diff --git a/actix-gcd/Cargo.lock b/actix-gcd/Cargo.lock
index 5cd811f..8d0c10f 100644
--- a/actix-gcd/Cargo.lock
+++ b/actix-gcd/Cargo.lock
@@ -1,36 +1,22 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "actix-codec"
-version = "0.1.2"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f2c11af4b06dc935d8e1b1491dad56bfb32febc49096a91e773f8535c176453"
+checksum = "57a7559404a7f3573127aab53c08ce37a6c6a315c374a31070f3c91cd1b4a7fe"
 dependencies = [
+ "bitflags",
  "bytes",
- "futures",
- "log",
- "tokio-codec",
- "tokio-io",
-]
-
-[[package]]
-name = "actix-connect"
-version = "0.2.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fade9bd4bb46bacde89f1e726c7a3dd230536092712f5d94d77ca57c087fca0"
-dependencies = [
- "actix-codec",
- "actix-rt",
- "actix-service",
- "actix-utils",
- "derive_more",
- "either",
- "futures",
- "http",
+ "futures-core",
+ "futures-sink",
  "log",
- "tokio-current-thread",
- "tokio-tcp",
- "trust-dns-resolver",
+ "memchr",
+ "pin-project-lite",
+ "tokio",
+ "tokio-util",
 ]
 
 [[package]]
@@ -43,224 +29,164 @@ dependencies = [
 
 [[package]]
 name = "actix-http"
-version = "0.2.11"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcb50f77cd28240d344fd54afd205bae8760a3b0ad448b1716a2aa31e24db139"
+checksum = "bd2e9f6794b5826aff6df65e3a0d0127b271d1c03629c774238f3582e903d4e4"
 dependencies = [
  "actix-codec",
- "actix-connect",
- "actix-server-config",
+ "actix-rt",
  "actix-service",
- "actix-threadpool",
  "actix-utils",
+ "ahash",
  "base64",
  "bitflags",
- "brotli2",
+ "brotli",
  "bytes",
- "chrono",
- "copyless",
+ "bytestring",
  "derive_more",
- "either",
  "encoding_rs",
- "failure",
  "flate2",
- "futures",
+ "futures-core",
  "h2",
- "hashbrown 0.6.3",
  "http",
  "httparse",
- "indexmap",
+ "httpdate",
+ "itoa 1.0.2",
  "language-tags",
- "lazy_static",
- "log",
+ "local-channel",
  "mime",
- "percent-encoding 2.1.0",
- "rand 0.7.3",
- "regex",
- "serde",
- "serde_json",
- "serde_urlencoded",
+ "percent-encoding",
+ "pin-project-lite",
+ "rand",
  "sha1",
- "slab",
- "time",
- "tokio-current-thread",
- "tokio-tcp",
- "tokio-timer",
- "trust-dns-resolver",
+ "smallvec",
+ "tracing",
+ "zstd",
+]
+
+[[package]]
+name = "actix-macros"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "465a6172cf69b960917811022d8f29bc0b7fa1398bc4f78b3c466673db1213b6"
+dependencies = [
+ "quote",
+ "syn",
 ]
 
 [[package]]
 name = "actix-router"
-version = "0.1.5"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23224bb527e204261d0291102cb9b52713084def67d94f7874923baefe04ccf7"
+checksum = "eb60846b52c118f2f04a56cc90880a274271c489b2498623d58176f8ca21fa80"
 dependencies = [
- "bytes",
+ "bytestring",
+ "firestorm",
  "http",
  "log",
  "regex",
  "serde",
- "string",
 ]
 
 [[package]]
 name = "actix-rt"
-version = "0.2.6"
+version = "2.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88c9da1d06603d82ec2b6690fc5b80eb626cd2d6b573f3d9a71d5252e06d098e"
+checksum = "7ea16c295198e958ef31930a6ef37d0fb64e9ca3b6116e6b93a8bdae96ee1000"
 dependencies = [
- "actix-threadpool",
- "copyless",
- "futures",
- "tokio-current-thread",
- "tokio-executor",
- "tokio-reactor",
- "tokio-timer",
+ "futures-core",
+ "tokio",
 ]
 
 [[package]]
 name = "actix-server"
-version = "0.6.1"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd626534af8d0a738e5f74901fe603af0445708f91b86a7d763d80df10d562a5"
+checksum = "0da34f8e659ea1b077bb4637948b815cd3768ad5a188fdcd74ff4d84240cd824"
 dependencies = [
  "actix-rt",
- "actix-server-config",
  "actix-service",
- "futures",
- "log",
+ "actix-utils",
+ "futures-core",
+ "futures-util",
  "mio",
- "net2",
  "num_cpus",
- "slab",
- "tokio-io",
- "tokio-reactor",
- "tokio-signal",
- "tokio-tcp",
- "tokio-timer",
-]
-
-[[package]]
-name = "actix-server-config"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "483a34989c682d93142bacad6300375bb6ad8002d2e0bb249dbad86128b9ff30"
-dependencies = [
- "futures",
- "tokio-io",
- "tokio-tcp",
+ "socket2",
+ "tokio",
+ "tracing",
 ]
 
 [[package]]
 name = "actix-service"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bca5b48e928841ff7e7dce1fdb5b0d4582f6b1b976e08f4bac3f640643e0773f"
-dependencies = [
- "futures",
-]
-
-[[package]]
-name = "actix-testing"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af001e97ac6750994824d400a1b7087055aab14317aa012f528d0b2b363f37f1"
-dependencies = [
- "actix-rt",
- "actix-server",
- "actix-server-config",
- "actix-service",
- "futures",
- "log",
- "net2",
- "tokio-reactor",
- "tokio-tcp",
-]
-
-[[package]]
-name = "actix-threadpool"
-version = "0.1.2"
+version = "2.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b5ae85d13da7e6fb86b1b7bc83185e0e3bd4cc5f421c887e1803796c034d35d"
+checksum = "3b894941f818cfdc7ccc4b9e60fa7e53b5042a2e8567270f9147d5591893373a"
 dependencies = [
- "derive_more",
- "futures",
- "lazy_static",
- "log",
- "num_cpus",
- "parking_lot",
- "threadpool",
+ "futures-core",
+ "paste",
+ "pin-project-lite",
 ]
 
 [[package]]
 name = "actix-utils"
-version = "0.4.7"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "908c3109948f5c37a8b57fd343a37dcad5bb1d90bfd06300ac96b17bbe017b95"
+checksum = "e491cbaac2e7fc788dfff99ff48ef317e23b3cf63dbaf7aaab6418f40f92aa94"
 dependencies = [
- "actix-codec",
- "actix-service",
- "bytes",
- "either",
- "futures",
- "log",
- "tokio-current-thread",
- "tokio-timer",
+ "local-waker",
+ "pin-project-lite",
 ]
 
 [[package]]
 name = "actix-web"
-version = "1.0.9"
+version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af3a1b967cdbacb903c4b9ae71257a7f098d881b25eb483d0c468b7dac579b03"
+checksum = "a27e8fe9ba4ae613c21f677c2cfaf0696c3744030c6f485b34634e502d6bb379"
 dependencies = [
  "actix-codec",
  "actix-http",
+ "actix-macros",
  "actix-router",
  "actix-rt",
  "actix-server",
- "actix-server-config",
  "actix-service",
- "actix-testing",
- "actix-threadpool",
  "actix-utils",
  "actix-web-codegen",
- "awc",
+ "ahash",
  "bytes",
+ "bytestring",
+ "cfg-if",
+ "cookie",
  "derive_more",
  "encoding_rs",
- "futures",
- "hashbrown 0.6.3",
+ "futures-core",
+ "futures-util",
+ "itoa 1.0.2",
+ "language-tags",
  "log",
  "mime",
- "net2",
- "parking_lot",
+ "once_cell",
+ "pin-project-lite",
  "regex",
  "serde",
  "serde_json",
  "serde_urlencoded",
+ "smallvec",
+ "socket2",
  "time",
- "url 2.2.2",
+ "url",
 ]
 
 [[package]]
 name = "actix-web-codegen"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "068a33520e21c1eea89726be4d6b3ce2e6b81046904367e1677287695a043abb"
-dependencies = [
- "proc-macro2 1.0.27",
- "quote 1.0.9",
- "syn 1.0.72",
-]
-
-[[package]]
-name = "addr2line"
-version = "0.15.2"
+version = "4.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7a2e47a1fbe209ee101dd6d61285226744c6c8d3c21c8dc878ba6cb9f467f3a"
+checksum = "5f270541caec49c15673b0af0e9a00143421ad4f118d2df7edcb68b627632f56"
 dependencies = [
- "gimli",
+ "actix-router",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
@@ -271,11 +197,13 @@ checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "ahash"
-version = "0.2.19"
+version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29661b60bec623f0586702976ff4d0c9942dcb6723161c2df0eea78455cfedfb"
+checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
 dependencies = [
- "const-random",
+ "getrandom",
+ "once_cell",
+ "version_check",
 ]
 
 [[package]]
@@ -288,63 +216,31 @@ dependencies = [
 ]
 
 [[package]]
-name = "autocfg"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
-
-[[package]]
-name = "autocfg"
-version = "1.0.1"
+name = "alloc-no-stdlib"
+version = "2.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
+checksum = "35ef4730490ad1c4eae5c4325b2a95f521d023e5c885853ff7aca0a6a1631db3"
 
 [[package]]
-name = "awc"
-version = "0.2.8"
+name = "alloc-stdlib"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e995283278dd3bf0449e7534e77184adb1570c0de8b6a50bf7c9d01ad8db8c4"
+checksum = "697ed7edc0f1711de49ce108c541623a0af97c6c60b2f6e2b65229847ac843c2"
 dependencies = [
- "actix-codec",
- "actix-http",
- "actix-service",
- "base64",
- "bytes",
- "derive_more",
- "futures",
- "log",
- "mime",
- "percent-encoding 2.1.0",
- "rand 0.7.3",
- "serde",
- "serde_json",
- "serde_urlencoded",
- "tokio-timer",
+ "alloc-no-stdlib",
 ]
 
 [[package]]
-name = "backtrace"
-version = "0.3.60"
+name = "autocfg"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7815ea54e4d821e791162e078acbebfd6d8c8939cd559c9335dceb1c8ca7282"
-dependencies = [
- "addr2line",
- "cc",
- "cfg-if 1.0.0",
- "libc",
- "miniz_oxide",
- "object",
- "rustc-demangle",
-]
+checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
 [[package]]
 name = "base64"
-version = "0.10.1"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b25d992356d2eb0ed82172f5248873db5560c4721f564b13cb5193bda5e668e"
-dependencies = [
- "byteorder",
-]
+checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 
 [[package]]
 name = "bitflags"
@@ -353,39 +249,48 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
 [[package]]
-name = "brotli-sys"
-version = "0.3.2"
+name = "block-buffer"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4445dea95f4c2b41cde57cc9fee236ae4dbae88d8fcbdb4750fc1bb5d86aaecd"
+checksum = "0bf7fe51849ea569fd452f37822f606a5cabb684dc918707a0193fd4664ff324"
 dependencies = [
- "cc",
- "libc",
+ "generic-array",
 ]
 
 [[package]]
-name = "brotli2"
-version = "0.3.2"
+name = "brotli"
+version = "3.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0cb036c3eade309815c15ddbacec5b22c4d1f3983a774ab2eac2e3e9ea85568e"
+checksum = "a1a0b1dbcc8ae29329621f8d4f0d835787c1c38bb1401979b49d13b0b305ff68"
 dependencies = [
- "brotli-sys",
- "libc",
+ "alloc-no-stdlib",
+ "alloc-stdlib",
+ "brotli-decompressor",
 ]
 
 [[package]]
-name = "byteorder"
-version = "1.4.3"
+name = "brotli-decompressor"
+version = "2.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+checksum = "59ad2d4653bf5ca36ae797b1f4bb4dbddb60ce49ca4aed8a2ce4829f60425b80"
+dependencies = [
+ "alloc-no-stdlib",
+ "alloc-stdlib",
+]
 
 [[package]]
 name = "bytes"
-version = "0.4.12"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
+
+[[package]]
+name = "bytestring"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "206fdffcfa2df7cbe15601ef46c813fce0965eb3286db6b56c583b814b51c81c"
+checksum = "86b6a75fd3048808ef06af5cd79712be8111960adaf89d90250974b38fc3928a"
 dependencies = [
- "byteorder",
- "iovec",
+ "bytes",
 ]
 
 [[package]]
@@ -393,12 +298,9 @@ name = "cc"
 version = "1.0.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4a72c244c1ff497a746a7e1fb3d14bd08420ecda70c8f25c7112f2781652d787"
-
-[[package]]
-name = "cfg-if"
-version = "0.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
+dependencies = [
+ "jobserver",
+]
 
 [[package]]
 name = "cfg-if"
@@ -407,106 +309,72 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
-name = "chrono"
-version = "0.4.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
-dependencies = [
- "libc",
- "num-integer",
- "num-traits",
- "time",
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "cloudabi"
-version = "0.0.3"
+name = "convert_case"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
-dependencies = [
- "bitflags",
-]
+checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
 
 [[package]]
-name = "const-random"
-version = "0.1.13"
+name = "cookie"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f590d95d011aa80b063ffe3253422ed5aa462af4e9867d43ce8337562bac77c4"
+checksum = "94d4706de1b0fa5b132270cddffa8585166037822e260a944fe161acd137ca05"
 dependencies = [
- "const-random-macro",
- "proc-macro-hack",
+ "percent-encoding",
+ "time",
+ "version_check",
 ]
 
 [[package]]
-name = "const-random-macro"
-version = "0.1.13"
+name = "cpufeatures"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "615f6e27d000a2bffbc7f2f6a8669179378fa27ee4d0a509e985dfc0a7defb40"
+checksum = "59a6001667ab124aebae2a495118e11d30984c3a653e99d86d58971708cf5e4b"
 dependencies = [
- "getrandom 0.2.3",
- "lazy_static",
- "proc-macro-hack",
- "tiny-keccak",
+ "libc",
 ]
 
-[[package]]
-name = "copyless"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2df960f5d869b2dd8532793fde43eb5427cceb126c929747a26823ab0eeb536"
-
 [[package]]
 name = "crc32fast"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "81156fece84ab6a9f2afdb109ce3ae577e42b1228441eded99bd77f627953b1a"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
 ]
 
 [[package]]
-name = "crossbeam-utils"
-version = "0.7.2"
+name = "crypto-common"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3c7c73a2d1e9fc0886a08b93e98eb643461230d5f1925e4036204d5f2e261a8"
+checksum = "57952ca27b5e3606ff4dd79b0020231aaf9d6aa76dc05fd30137538c50bd3ce8"
 dependencies = [
- "autocfg 1.0.1",
- "cfg-if 0.1.10",
- "lazy_static",
+ "generic-array",
+ "typenum",
 ]
 
-[[package]]
-name = "crunchy"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
-
 [[package]]
 name = "derive_more"
-version = "0.15.0"
+version = "0.99.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a141330240c921ec6d074a3e188a7c7ef95668bb95e7d44fa0e5778ec2a7afe"
+checksum = "4fb810d30a7c1953f91334de7244731fc3f3c10d7fe163338a35b9f640960321"
 dependencies = [
- "lazy_static",
- "proc-macro2 0.4.30",
- "quote 0.6.13",
- "regex",
+ "convert_case",
+ "proc-macro2",
+ "quote",
  "rustc_version",
- "syn 0.15.44",
+ "syn",
 ]
 
 [[package]]
-name = "dtoa"
-version = "0.4.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56899898ce76aaf4a0f24d914c97ea6ed976d42fec6ad33fcbb0a1103e07b2b0"
-
-[[package]]
-name = "either"
-version = "1.6.1"
+name = "digest"
+version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
+checksum = "f2fb860ca6fafa5552fb6d0e816a69c8e49f0908bf524e30a90d97c85892d506"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+]
 
 [[package]]
 name = "encoding_rs"
@@ -514,41 +382,14 @@ version = "0.8.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "80df024fbc5ac80f87dfef0d9f5209a252f2a497f7f42944cff24d8253cac065"
 dependencies = [
- "cfg-if 1.0.0",
-]
-
-[[package]]
-name = "enum-as-inner"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d58266c97445680766be408285e798d3401c6d4c378ec5552e78737e681e37d"
-dependencies = [
- "proc-macro2 0.4.30",
- "quote 0.6.13",
- "syn 0.15.44",
-]
-
-[[package]]
-name = "failure"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d32e9bd16cc02eae7db7ef620b392808b89f6a5e16bb3497d159c6b92a0f4f86"
-dependencies = [
- "backtrace",
- "failure_derive",
+ "cfg-if",
 ]
 
 [[package]]
-name = "failure_derive"
-version = "0.1.8"
+name = "firestorm"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
-dependencies = [
- "proc-macro2 1.0.27",
- "quote 1.0.9",
- "syn 1.0.72",
- "synstructure",
-]
+checksum = "2c5f6c2c942da57e2aaaa84b8a521489486f14e75e7fa91dab70aba913975f98"
 
 [[package]]
 name = "flate2"
@@ -556,10 +397,9 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cd3aec53de10fe96d7d8c565eb17f2c687bb5518a2ec453b5b1252964526abe0"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "crc32fast",
  "libc",
- "miniz-sys",
  "miniz_oxide",
 ]
 
@@ -576,46 +416,47 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5fc25a87fa4fd2094bffb06925852034d90a17f0d1e05197d4956d3555752191"
 dependencies = [
  "matches",
- "percent-encoding 2.1.0",
+ "percent-encoding",
 ]
 
 [[package]]
-name = "fuchsia-cprng"
-version = "0.1.1"
+name = "futures-core"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
+checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
 
 [[package]]
-name = "fuchsia-zircon"
-version = "0.3.3"
+name = "futures-sink"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
-dependencies = [
- "bitflags",
- "fuchsia-zircon-sys",
-]
+checksum = "21163e139fa306126e6eedaf49ecdb4588f939600f0b1e770f4205ee4b7fa868"
 
 [[package]]
-name = "fuchsia-zircon-sys"
-version = "0.3.3"
+name = "futures-task"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
+checksum = "57c66a976bf5909d801bbef33416c41372779507e7a6b3a5e25e4749c58f776a"
 
 [[package]]
-name = "futures"
-version = "0.1.31"
+name = "futures-util"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a471a38ef8ed83cd6e40aa59c1ffe17db6855c18e3604d9c4ed8c08ebc28678"
+checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "pin-project-lite",
+ "pin-utils",
+]
 
 [[package]]
-name = "getrandom"
-version = "0.1.16"
+name = "generic-array"
+version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8fc3cb4d91f53b50155bdcfd23f6a4c39ae1969c2ae85982b135750cccaf5fce"
+checksum = "fd48d33ec7f05fbfa152300fdad764757cbded343c1aa1cff2fbaf4134851803"
 dependencies = [
- "cfg-if 1.0.0",
- "libc",
- "wasi 0.9.0+wasi-snapshot-preview1",
+ "typenum",
+ "version_check",
 ]
 
 [[package]]
@@ -624,43 +465,28 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7fcd999463524c52659517fe2cea98493cfe485d10565e7b0fb07dbba7ad2753"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "libc",
  "wasi 0.10.0+wasi-snapshot-preview1",
 ]
 
-[[package]]
-name = "gimli"
-version = "0.24.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e4075386626662786ddb0ec9081e7c7eeb1ba31951f447ca780ef9f5d568189"
-
 [[package]]
 name = "h2"
-version = "0.1.26"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5b34c246847f938a410a03c5458c7fee2274436675e76d8b903c08efc29c462"
+checksum = "37a82c6d637fc9515a4694bbf1cb2457b79d81ce52b3108bdeea58b07dd34a57"
 dependencies = [
- "byteorder",
  "bytes",
  "fnv",
- "futures",
+ "futures-core",
+ "futures-sink",
+ "futures-util",
  "http",
  "indexmap",
- "log",
  "slab",
- "string",
- "tokio-io",
-]
-
-[[package]]
-name = "hashbrown"
-version = "0.6.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e6073d0ca812575946eb5f35ff68dbe519907b25c42530389ff946dc84c6ead"
-dependencies = [
- "ahash",
- "autocfg 0.1.7",
+ "tokio",
+ "tokio-util",
+ "tracing",
 ]
 
 [[package]]
@@ -678,44 +504,28 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "hostname"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c731c3e10504cc8ed35cfe2f1db4c9274c3d35fa486e3b31df46f068ef3e867"
-dependencies = [
- "libc",
- "match_cfg",
- "winapi 0.3.9",
-]
-
 [[package]]
 name = "http"
-version = "0.1.21"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6ccf5ede3a895d8856620237b2f02972c1bbc78d2965ad7fe8838d4a0ed41f0"
+checksum = "75f43d41e26995c17e71ee126451dd3941010b0514a81a9d11f3b341debc2399"
 dependencies = [
  "bytes",
  "fnv",
- "itoa",
+ "itoa 1.0.2",
 ]
 
 [[package]]
 name = "httparse"
-version = "1.4.1"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3a87b616e37e93c22fb19bcd386f02f3af5ea98a25670ad0fce773de23c5e68"
+checksum = "496ce29bb5a52785b44e0f7ca2847ae0bb839c9bd28f69acac9b99d461c0c04c"
 
 [[package]]
-name = "idna"
-version = "0.1.5"
+name = "httpdate"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38f09e0f0b1fb55fdee1f17470ad800da77af5186a1a76c026b679358b7e844e"
-dependencies = [
- "matches",
- "unicode-bidi",
- "unicode-normalization",
-]
+checksum = "c4a1e36c821dbe04574f602848a19f742f4fb3c98d40449f11bcad18d6b17421"
 
 [[package]]
 name = "idna"
@@ -734,76 +544,66 @@ version = "1.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "824845a0bf897a9042383849b02c1bc219c2383772efcd5c6f9766fa4b81aef3"
 dependencies = [
- "autocfg 1.0.1",
- "hashbrown 0.9.1",
+ "autocfg",
+ "hashbrown",
 ]
 
 [[package]]
-name = "iovec"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2b3ea6ff95e175473f8ffe6a7eb7c00d054240321b84c57051175fe3c1e075e"
-dependencies = [
- "libc",
-]
-
-[[package]]
-name = "ipconfig"
-version = "0.2.2"
+name = "itoa"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7e2f18aece9709094573a9f24f483c4f65caa4298e2f7ae1b71cc65d853fad7"
-dependencies = [
- "socket2",
- "widestring",
- "winapi 0.3.9",
- "winreg",
-]
+checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
 
 [[package]]
 name = "itoa"
-version = "0.4.7"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
+checksum = "112c678d4050afce233f4f2852bb2eb519230b3cf12f33585275537d7e41578d"
 
 [[package]]
-name = "kernel32-sys"
-version = "0.2.2"
+name = "jobserver"
+version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
+checksum = "af25a77299a7f711a01975c35a6a424eb6862092cc2d6c72c4ed6cbc56dfc1fa"
 dependencies = [
- "winapi 0.2.8",
- "winapi-build",
+ "libc",
 ]
 
 [[package]]
 name = "language-tags"
-version = "0.2.2"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"
+checksum = "d4345964bb142484797b161f473a503a434de77149dd8c7427788c6e13379388"
 
 [[package]]
-name = "lazy_static"
-version = "1.4.0"
+name = "libc"
+version = "0.2.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836"
 
 [[package]]
-name = "libc"
-version = "0.2.95"
+name = "local-channel"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "789da6d93f1b866ffe175afc5322a4d76c038605a1c3319bb57b06967ca98a36"
+checksum = "7f303ec0e94c6c54447f84f3b0ef7af769858a9c4ef56ef2a986d3dcd4c3fc9c"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+ "futures-util",
+ "local-waker",
+]
 
 [[package]]
-name = "linked-hash-map"
-version = "0.5.4"
+name = "local-waker"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fb9b38af92608140b86b693604b9ffcc5824240a484d1ecd4795bacb2fe88f3"
+checksum = "e34f76eb3611940e0e7d53a9aaa4e6a3151f69541a282fd0dad5571420c53ff1"
 
 [[package]]
 name = "lock_api"
-version = "0.3.4"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4da24a77a3d8a6d4862d95f72e6fdb9c09a643ecdb402d754004a557f2bec75"
+checksum = "88943dd7ef4a2e5a4bfa2753aaab3013e34ce2533d1996fb18ef591e315e2b3b"
 dependencies = [
  "scopeguard",
 ]
@@ -814,36 +614,15 @@ version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
 dependencies = [
- "cfg-if 1.0.0",
-]
-
-[[package]]
-name = "lru-cache"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31e24f1ad8321ca0e8a1e0ac13f23cb668e6f5466c2c57319f6a5cf1cc8e3b1c"
-dependencies = [
- "linked-hash-map",
+ "cfg-if",
 ]
 
-[[package]]
-name = "match_cfg"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ffbee8634e0d45d258acb448e7eaab3fce7a0a467395d4d9f228e3c1f01fb2e4"
-
 [[package]]
 name = "matches"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 
-[[package]]
-name = "maybe-uninit"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
-
 [[package]]
 name = "memchr"
 version = "2.4.0"
@@ -856,16 +635,6 @@ version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2a60c7ce501c71e03a9c9c0d35b861413ae925bd979cc7a4e30d060069aaac8d"
 
-[[package]]
-name = "miniz-sys"
-version = "0.1.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e9e3ae51cea1576ceba0dde3d484d30e6e5b86dee0b2d412fe3a16a15c98202"
-dependencies = [
- "cc",
- "libc",
-]
-
 [[package]]
 name = "miniz_oxide"
 version = "0.4.4"
@@ -873,79 +642,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b"
 dependencies = [
  "adler",
- "autocfg 1.0.1",
+ "autocfg",
 ]
 
 [[package]]
 name = "mio"
-version = "0.6.23"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4afd66f5b91bf2a3bc13fad0e21caedac168ca4c707504e75585648ae80e4cc4"
+checksum = "57ee1c23c7c63b0c9250c339ffdc69255f110b298b901b9f6c82547b7b87caaf"
 dependencies = [
- "cfg-if 0.1.10",
- "fuchsia-zircon",
- "fuchsia-zircon-sys",
- "iovec",
- "kernel32-sys",
  "libc",
  "log",
- "miow",
- "net2",
- "slab",
- "winapi 0.2.8",
-]
-
-[[package]]
-name = "mio-uds"
-version = "0.6.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afcb699eb26d4332647cc848492bbc15eafb26f08d0304550d5aa1f612e066f0"
-dependencies = [
- "iovec",
- "libc",
- "mio",
-]
-
-[[package]]
-name = "miow"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebd808424166322d4a38da87083bfddd3ac4c131334ed55856112eb06d46944d"
-dependencies = [
- "kernel32-sys",
- "net2",
- "winapi 0.2.8",
- "ws2_32-sys",
-]
-
-[[package]]
-name = "net2"
-version = "0.2.37"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "391630d12b68002ae1e25e8f974306474966550ad82dac6886fb8910c19568ae"
-dependencies = [
- "cfg-if 0.1.10",
- "libc",
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "num-integer"
-version = "0.1.44"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2cc698a63b549a70bc047073d2949cce27cd1c7b0a4a862d08a8031bc2801db"
-dependencies = [
- "autocfg 1.0.1",
- "num-traits",
-]
-
-[[package]]
-name = "num-traits"
-version = "0.2.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
-dependencies = [
- "autocfg 1.0.1",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+ "windows-sys",
 ]
 
 [[package]]
@@ -959,45 +668,48 @@ dependencies = [
 ]
 
 [[package]]
-name = "object"
-version = "0.25.2"
+name = "num_threads"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8bc1d42047cf336f0f939c99e97183cf31551bf0f2865a2ec9c8d91fd4ffb5e"
+checksum = "2819ce041d2ee131036f4fc9d6ae7ae125a3a40e97ba64d04fe799ad9dabbb44"
 dependencies = [
- "memchr",
+ "libc",
 ]
 
+[[package]]
+name = "once_cell"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225"
+
 [[package]]
 name = "parking_lot"
-version = "0.9.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f842b1982eb6c2fe34036a4fbfb06dd185a3f5c8edfaacdf7d1ea10b07de6252"
+checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
 dependencies = [
  "lock_api",
  "parking_lot_core",
- "rustc_version",
 ]
 
 [[package]]
 name = "parking_lot_core"
-version = "0.6.2"
+version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b876b1b9e7ac6e1a74a6da34d25c42e17e8862aa409cbbbdcfc8d86c6f3bc62b"
+checksum = "09a279cbf25cb0757810394fbc1e359949b59e348145c643a939a525692e6929"
 dependencies = [
- "cfg-if 0.1.10",
- "cloudabi",
+ "cfg-if",
  "libc",
  "redox_syscall",
- "rustc_version",
  "smallvec",
- "winapi 0.3.9",
+ "windows-sys",
 ]
 
 [[package]]
-name = "percent-encoding"
-version = "1.0.1"
+name = "paste"
+version = "1.0.7"
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@@ -1006,25 +718,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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 [[package]]
-name = "proc-macro-hack"
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+name = "pin-utils"
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-checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
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+checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
 
 [[package]]
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@@ -1032,22 +741,7 @@ version = "1.0.27"
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-dependencies = [
- "proc-macro2 0.4.30",
+ "unicode-xid",
 ]
 
 [[package]]
@@ -1056,176 +750,53 @@ version = "1.0.9"
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- "rand_isaac",
- "rand_jitter",
- "rand_os",
- "rand_pcg",
- "rand_xorshift",
- "winapi 0.3.9",
+ "proc-macro2",
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 [[package]]
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+version = "0.8.5"
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- "rand_chacha 0.2.2",
- "rand_core 0.5.1",
- "rand_hc 0.2.0",
+ "rand_chacha",
+ "rand_core",
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+ "ppv-lite86",
+ "rand_core",
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 dependencies = [
- "rand_core 0.3.1",
+ "getrandom",
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+name = "redox_syscall"
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-checksum = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
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 dependencies = [
- "rand_core 0.3.1",
+ "bitflags",
 ]
 
-[[package]]
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-version = "0.1.57"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
-
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 dependencies = [
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@@ -1234,31 +805,15 @@ dependencies = [
 
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-
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-dependencies = [
- "hostname",
- "quick-error",
-]
-
-[[package]]
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-version = "0.1.19"
+version = "0.6.26"
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-checksum = "410f7acf3cb3a44527c5d9546bad4bf4e6c460915d5f9f2fc524498bfe8f70ce"
+checksum = "49b3de9ec5dc0a3417da371aab17d729997c15010e7fd24ff707773a33bddb64"
 
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-checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
 dependencies = [
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 ]
@@ -1277,18 +832,9 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
-dependencies = [
- "semver-parser",
-]
-
-[[package]]
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-checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
+checksum = "a41d061efea015927ac527063765e73601444cdc344ba855bc7bd44578b25e1c"
 
 [[package]]
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@@ -1305,9 +851,9 @@ version = "1.0.126"
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 dependencies = [
- "proc-macro2 1.0.27",
- "quote 1.0.9",
- "syn 1.0.72",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
@@ -1316,28 +862,33 @@ version = "1.0.64"
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 dependencies = [
- "itoa",
+ "itoa 0.4.7",
  "ryu",
  "serde",
 ]
 
 [[package]]
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-version = "0.6.1"
+version = "0.7.1"
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+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
 dependencies = [
- "dtoa",
- "itoa",
+ "form_urlencoded",
+ "itoa 1.0.2",
+ "ryu",
  "serde",
- "url 2.2.2",
 ]
 
 [[package]]
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-version = "0.6.0"
+version = "0.10.1"
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-checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
+checksum = "c77f4e7f65455545c2153c1253d25056825e77ee2533f0e41deb65a93a34852f"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
 
 [[package]]
 name = "signal-hook-registry"
@@ -1356,42 +907,18 @@ checksum = "f173ac3d1a7e3b28003f40de0b5ce7fe2710f9b9dc3fc38664cebee46b3b6527"
 
 [[package]]
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-dependencies = [
- "maybe-uninit",
-]
+checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
 
 [[package]]
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-version = "0.3.19"
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-checksum = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"
+checksum = "66d72b759436ae32898a2af0a14218dbf55efde3feeb170eb623637db85ee1e0"
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-dependencies = [
- "proc-macro2 0.4.30",
- "quote 0.6.13",
- "unicode-xid 0.1.0",
+ "winapi",
 ]
 
 [[package]]
@@ -1400,51 +927,28 @@ version = "1.0.72"
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 checksum = "a1e8cdbefb79a9a5a65e0db8b47b723ee907b7c7f8496c76a1770b5c310bab82"
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-dependencies = [
- "num_cpus",
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
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 [[package]]
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-version = "0.1.44"
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+checksum = "82501a4c1c0330d640a6e176a3d6a204f5ec5237aca029029d21864a902e27b0"
 dependencies = [
+ "itoa 1.0.2",
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- "wasi 0.10.0+wasi-snapshot-preview1",
- "winapi 0.3.9",
+ "num_threads",
+ "time-macros",
 ]
 
 [[package]]
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-version = "2.0.2"
+name = "time-macros"
+version = "0.2.4"
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-dependencies = [
- "crunchy",
-]
+checksum = "42657b1a6f4d817cda8e7a0ace261fe0cc946cf3a80314390b22cc61ae080792"
 
 [[package]]
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@@ -1462,177 +966,63 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
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-
-[[package]]
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-dependencies = [
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+ "memchr",
  "mio",
- "mio-uds",
+ "once_cell",
+ "parking_lot",
+ "pin-project-lite",
  "signal-hook-registry",
- "tokio-executor",
- "tokio-io",
- "tokio-reactor",
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "tokio-sync"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "edfe50152bc8164fcc456dab7891fa9bf8beaf01c5ee7e1dd43a397c3cf87dee"
-dependencies = [
- "fnv",
- "futures",
+ "socket2",
+ "winapi",
 ]
 
 [[package]]
-name = "tokio-tcp"
-version = "0.1.4"
+name = "tokio-util"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98df18ed66e3b72e742f185882a9e201892407957e45fbff8da17ae7a7c51f72"
+checksum = "cc463cd8deddc3770d20f9852143d50bf6094e640b485cb2e189a2099085ff45"
 dependencies = [
  "bytes",
- "futures",
- "iovec",
- "mio",
- "tokio-io",
- "tokio-reactor",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+ "tracing",
 ]
 
 [[package]]
-name = "tokio-timer"
-version = "0.2.13"
+name = "tracing"
+version = "0.1.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93044f2d313c95ff1cb7809ce9a7a05735b012288a888b62d4434fd58c94f296"
+checksum = "a400e31aa60b9d44a52a8ee0343b5b18566b03a8321e0d321f695cf56e940160"
 dependencies = [
- "crossbeam-utils",
- "futures",
- "slab",
- "tokio-executor",
-]
-
-[[package]]
-name = "tokio-udp"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2a0b10e610b39c38b031a2fcab08e4b82f16ece36504988dcbd81dbba650d82"
-dependencies = [
- "bytes",
- "futures",
+ "cfg-if",
  "log",
- "mio",
- "tokio-codec",
- "tokio-io",
- "tokio-reactor",
+ "pin-project-lite",
+ "tracing-core",
 ]
 
 [[package]]
-name = "trust-dns-proto"
-version = "0.7.4"
+name = "tracing-core"
+version = "0.1.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5559ebdf6c2368ddd11e20b11d6bbaf9e46deb803acd7815e93f5a7b4a6d2901"
+checksum = "7709595b8878a4965ce5e87ebf880a7d39c9afc6837721b21a5a816a8117d921"
 dependencies = [
- "byteorder",
- "enum-as-inner",
- "failure",
- "futures",
- "idna 0.1.5",
- "lazy_static",
- "log",
- "rand 0.6.5",
- "smallvec",
- "socket2",
- "tokio-executor",
- "tokio-io",
- "tokio-reactor",
- "tokio-tcp",
- "tokio-timer",
- "tokio-udp",
- "url 1.7.2",
+ "once_cell",
 ]
 
 [[package]]
-name = "trust-dns-resolver"
-version = "0.11.1"
+name = "typenum"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c9992e58dba365798803c0b91018ff6c8d3fc77e06977c4539af2a6bfe0a039"
-dependencies = [
- "cfg-if 0.1.10",
- "failure",
- "futures",
- "ipconfig",
- "lazy_static",
- "log",
- "lru-cache",
- "resolv-conf",
- "smallvec",
- "tokio-executor",
- "trust-dns-proto",
-]
+checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
 
 [[package]]
 name = "unicode-bidi"
@@ -1652,29 +1042,12 @@ dependencies = [
  "tinyvec",
 ]
 
-[[package]]
-name = "unicode-xid"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
-
 [[package]]
 name = "unicode-xid"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
 
-[[package]]
-name = "url"
-version = "1.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
-dependencies = [
- "idna 0.1.5",
- "matches",
- "percent-encoding 1.0.1",
-]
-
 [[package]]
 name = "url"
 version = "2.2.2"
@@ -1682,16 +1055,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a507c383b2d33b5fc35d1861e77e6b383d158b2da5e14fe51b83dfedf6fd578c"
 dependencies = [
  "form_urlencoded",
- "idna 0.2.3",
+ "idna",
  "matches",
- "percent-encoding 2.1.0",
+ "percent-encoding",
 ]
 
 [[package]]
-name = "wasi"
-version = "0.9.0+wasi-snapshot-preview1"
+name = "version_check"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "wasi"
@@ -1700,16 +1073,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
 
 [[package]]
-name = "widestring"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c168940144dd21fd8046987c16a46a33d5fc84eec29ef9dcddc2ac9e31526b7c"
-
-[[package]]
-name = "winapi"
-version = "0.2.8"
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "winapi"
@@ -1721,12 +1088,6 @@ dependencies = [
  "winapi-x86_64-pc-windows-gnu",
 ]
 
-[[package]]
-name = "winapi-build"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
-
 [[package]]
 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
@@ -1740,20 +1101,73 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
-name = "winreg"
-version = "0.6.2"
+name = "windows-sys"
+version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2986deb581c4fe11b621998a5e53361efe6b48a151178d0cd9eeffa4dc6acc9"
+checksum = "ea04155a16a59f9eab786fe12a4a450e75cdb175f9e0d80da1e17db09f55b8d2"
 dependencies = [
- "winapi 0.3.9",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_msvc",
 ]
 
 [[package]]
-name = "ws2_32-sys"
-version = "0.2.1"
+name = "windows_aarch64_msvc"
+version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
+checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
+
+[[package]]
+name = "zstd"
+version = "0.11.2+zstd.1.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "20cc960326ece64f010d2d2107537f26dc589a6573a316bd5b1dba685fa5fde4"
+dependencies = [
+ "zstd-safe",
+]
+
+[[package]]
+name = "zstd-safe"
+version = "5.0.2+zstd.1.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d2a5585e04f9eea4b2a3d1eca508c4dee9592a89ef6f450c11719da0726f4db"
 dependencies = [
- "winapi 0.2.8",
- "winapi-build",
+ "libc",
+ "zstd-sys",
+]
+
+[[package]]
+name = "zstd-sys"
+version = "2.0.1+zstd.1.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9fd07cbbc53846d9145dbffdf6dd09a7a0aa52be46741825f5c97bdd4f73f12b"
+dependencies = [
+ "cc",
+ "libc",
 ]
diff --git a/actix-gcd/Cargo.toml b/actix-gcd/Cargo.toml
index 860595a..8a64d83 100644
--- a/actix-gcd/Cargo.toml
+++ b/actix-gcd/Cargo.toml
@@ -8,5 +8,5 @@ edition = "2018"
 # https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-actix-web = "1.0.8"
+actix-web = "4.1"
 serde = { version = "1.0", features = ["derive"] }
diff --git a/actix-gcd/src/main.rs b/actix-gcd/src/main.rs
index 82dde6c..fcae002 100644
--- a/actix-gcd/src/main.rs
+++ b/actix-gcd/src/main.rs
@@ -1,6 +1,7 @@
 use actix_web::{web, App, HttpResponse, HttpServer};
 
-fn main() {
+#[actix_web::main]
+async fn main() {
     let server = HttpServer::new(|| {
         App::new()
             .route("/", web::get().to(get_index))
@@ -10,10 +11,12 @@ fn main() {
     println!("Serving on http://localhost:3000...");
     server
         .bind("127.0.0.1:3000").expect("error binding server to address")
-        .run().expect("error running server");
+        .run()
+        .await
+        .expect("error running server");
 }
 
-fn get_index() -> HttpResponse {
+async fn get_index() -> HttpResponse {
     HttpResponse::Ok()
         .content_type("text/html")
         .body(
@@ -35,7 +38,7 @@ struct GcdParameters {
     m: u64,
 }
 
-fn post_gcd(form: web::Form<GcdParameters>) -> HttpResponse {
+async fn post_gcd(form: web::Form<GcdParameters>) -> HttpResponse {
     if form.n == 0 || form.m == 0 {
         return HttpResponse::BadRequest()
             .content_type("text/html")