diff --git a/Cargo.lock b/Cargo.lock
index 25b0590d..14b649f8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -19,7 +19,7 @@ dependencies = [
  "log",
  "once_cell",
  "parking_lot",
- "pin-project 0.4.28",
+ "pin-project 0.4.29",
  "smallvec",
  "tokio 0.2.25",
  "tokio-util 0.3.1",
@@ -38,7 +38,7 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "log",
- "pin-project 0.4.28",
+ "pin-project 0.4.29",
  "tokio 0.2.25",
  "tokio-util 0.3.1",
 ]
@@ -106,13 +106,13 @@ dependencies = [
  "http",
  "httparse",
  "indexmap",
- "itoa",
+ "itoa 0.4.8",
  "language-tags",
  "lazy_static",
  "log",
  "mime",
  "percent-encoding",
- "pin-project 1.0.8",
+ "pin-project 1.0.10",
  "rand 0.7.3",
  "regex",
  "serde",
@@ -188,7 +188,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0052435d581b5be835d11f4eb3bce417c8af18d87ddf8ace99f8e67e595882bb"
 dependencies = [
  "futures-util",
- "pin-project 0.4.28",
+ "pin-project 0.4.29",
 ]
 
 [[package]]
@@ -248,15 +248,15 @@ dependencies = [
  "futures-sink",
  "futures-util",
  "log",
- "pin-project 0.4.28",
+ "pin-project 0.4.29",
  "slab",
 ]
 
 [[package]]
 name = "actix-web"
-version = "3.3.2"
+version = "3.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e641d4a172e7faa0862241a20ff4f1f5ab0ab7c279f00c2d4587b77483477b86"
+checksum = "b6534a126df581caf443ba2751cab42092c89b3f1d06a9d829b1e17edfe3e277"
 dependencies = [
  "actix-codec",
  "actix-http",
@@ -280,7 +280,7 @@ dependencies = [
  "fxhash",
  "log",
  "mime",
- "pin-project 1.0.8",
+ "pin-project 1.0.10",
  "regex",
  "serde",
  "serde_json",
@@ -330,9 +330,9 @@ dependencies = [
 
 [[package]]
 name = "async-trait"
-version = "0.1.51"
+version = "0.1.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44318e776df68115a881de9a8fd1b9e53368d7a4a5ce4cc48517da3393233a5e"
+checksum = "061a7acccaa286c011ddc30970520b98fa40e00c9d644633fb26b5fc63a265e3"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -407,6 +407,15 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "block-buffer"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1d36a02058e76b040de25a4464ba1c80935655595b661505c8b39b664828b95"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "brotli-sys"
 version = "0.3.2"
@@ -507,9 +516,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "2.33.3"
+version = "2.34.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37e58ac78573c40708d45522f0d80fa2f01cc4f9b4e2bf749807255454312002"
+checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
 dependencies = [
  "bitflags",
  "textwrap",
@@ -556,9 +565,9 @@ dependencies = [
 
 [[package]]
 name = "crc32fast"
-version = "1.2.1"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81156fece84ab6a9f2afdb109ce3ae577e42b1228441eded99bd77f627953b1a"
+checksum = "738c290dfaea84fc1ca15ad9c168d083b05a714e1efddd8edaab678dc28d2836"
 dependencies = [
  "cfg-if 1.0.0",
 ]
@@ -587,7 +596,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "tinytemplate",
- "tokio 1.13.0",
+ "tokio 1.15.0",
  "walkdir",
 ]
 
@@ -667,13 +676,12 @@ dependencies = [
 ]
 
 [[package]]
-name = "crypto-mac"
-version = "0.11.1"
+name = "crypto-common"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1d1a86f49236c215f271d40892d5fc950490551400b02ef360692c29815c714"
+checksum = "683d6b536309245c849479fba3da410962a43ed8e51c26b729208ec0ac2798d0"
 dependencies = [
  "generic-array",
- "subtle",
 ]
 
 [[package]]
@@ -684,7 +692,7 @@ checksum = "22813a6dc45b335f9bade10bf7271dc477e81113e89eb251a0bc2a8a81c536e1"
 dependencies = [
  "bstr",
  "csv-core",
- "itoa",
+ "itoa 0.4.8",
  "ryu",
  "serde",
 ]
@@ -700,14 +708,14 @@ dependencies = [
 
 [[package]]
 name = "derive_more"
-version = "0.99.16"
+version = "0.99.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40eebddd2156ce1bb37b20bbe5151340a31828b1f2d22ba4141f3531710e38df"
+checksum = "4fb810d30a7c1953f91334de7244731fc3f3c10d7fe163338a35b9f640960321"
 dependencies = [
  "convert_case",
  "proc-macro2",
  "quote",
- "rustc_version 0.3.3",
+ "rustc_version 0.4.0",
  "syn",
 ]
 
@@ -720,6 +728,18 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "digest"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b697d66081d42af4fba142d56918a3cb21dc8eb63372c6b85d14f44fb9c5979b"
+dependencies = [
+ "block-buffer 0.10.0",
+ "crypto-common",
+ "generic-array",
+ "subtle",
+]
+
 [[package]]
 name = "discard"
 version = "1.0.4"
@@ -738,12 +758,6 @@ dependencies = [
  "strsim",
 ]
 
-[[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"
@@ -752,9 +766,9 @@ checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
 [[package]]
 name = "encoding_rs"
-version = "0.8.29"
+version = "0.8.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a74ea89a0a1b98f6332de42c95baff457ada66d1cb4030f9ff151b2041a1c746"
+checksum = "7896dc8abb250ffdda33912550faa54c88ec8b998dec0b2c55ab224921ce11df"
 dependencies = [
  "cfg-if 1.0.0",
 ]
@@ -851,9 +865,9 @@ checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
 
 [[package]]
 name = "futures"
-version = "0.3.17"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a12aa0eb539080d55c3f2d45a67c3b58b6b0773c1a3ca2dfec66d58c97fd66ca"
+checksum = "28560757fe2bb34e79f907794bb6b22ae8b0e5c669b638a1132f2592b19035b4"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -866,9 +880,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.17"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5da6ba8c3bb3c165d3c7319fc1cc8304facf1fb8db99c5de877183c08a273888"
+checksum = "ba3dda0b6588335f360afc675d0564c17a77a2bda81ca178a4b6081bd86c7f0b"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -876,15 +890,15 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.17"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88d1c26957f23603395cd326b0ffe64124b818f4449552f960d815cfba83a53d"
+checksum = "d0c8ff0461b82559810cdccfde3215c3f373807f5e5232b71479bff7bb2583d7"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.17"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45025be030969d763025784f7f355043dc6bc74093e4ecc5000ca4dc50d8745c"
+checksum = "29d6d2ff5bb10fb95c85b8ce46538a2e5f5e7fdc755623a7d4529ab8a4ed9d2a"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -893,18 +907,16 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.17"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "522de2a0fe3e380f1bc577ba0474108faf3f6b18321dbf60b3b9c39a75073377"
+checksum = "b1f9d34af5a1aac6fb380f735fe510746c38067c5bf16c7fd250280503c971b2"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.17"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18e4a4b95cea4b4ccbcf1c5675ca7c4ee4e9e75eb79944d07defde18068f79bb"
+checksum = "6dbd947adfffb0efc70599b3ddcf7b5597bb5fa9e245eb99f62b3a5f7bb8bd3c"
 dependencies = [
- "autocfg",
- "proc-macro-hack",
  "proc-macro2",
  "quote",
  "syn",
@@ -912,23 +924,22 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.17"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36ea153c13024fe480590b3e3d4cad89a0cfacecc24577b68f86c6ced9c2bc11"
+checksum = "e3055baccb68d74ff6480350f8d6eb8fcfa3aa11bdc1a1ae3afdd0514617d508"
 
 [[package]]
 name = "futures-task"
-version = "0.3.17"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d3d00f4eddb73e498a54394f228cd55853bdf059259e8e7bc6e69d408892e99"
+checksum = "6ee7c6485c30167ce4dfb83ac568a849fe53274c831081476ee13e0dce1aad72"
 
 [[package]]
 name = "futures-util"
-version = "0.3.17"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36568465210a3a6ee45e1f165136d68671471a501e632e9a98d96872222b5481"
+checksum = "d9b5cf40b47a271f77a8b1bec03ca09044d99d2372c0de244e66430761127164"
 dependencies = [
- "autocfg",
  "futures-channel",
  "futures-core",
  "futures-io",
@@ -936,10 +947,8 @@ dependencies = [
  "futures-sink",
  "futures-task",
  "memchr",
- "pin-project-lite 0.2.7",
+ "pin-project-lite 0.2.8",
  "pin-utils",
- "proc-macro-hack",
- "proc-macro-nested",
  "slab",
 ]
 
@@ -1036,12 +1045,11 @@ dependencies = [
 
 [[package]]
 name = "hmac"
-version = "0.11.0"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a2a2320eb7ec0ebe8da8f744d7812d9fc4cb4d09344ac01898dbcb6a20ae69b"
+checksum = "ddca131f3e7f2ce2df364b57949a9d47915cfbd35e46cfee355ccebbf794d6a2"
 dependencies = [
- "crypto-mac",
- "digest",
+ "digest 0.10.1",
 ]
 
 [[package]]
@@ -1057,13 +1065,13 @@ dependencies = [
 
 [[package]]
 name = "http"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1323096b05d41827dadeaee54c9981958c0f94e670bc94ed80037d1a7b8b186b"
+checksum = "31f4c6746584866f0feabcc69893c5b51beef3831656a968ed7ae254cdc4fd03"
 dependencies = [
  "bytes 1.1.0",
  "fnv",
- "itoa",
+ "itoa 1.0.1",
 ]
 
 [[package]]
@@ -1131,9 +1139,9 @@ dependencies = [
 
 [[package]]
 name = "itertools"
-version = "0.10.1"
+version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69ddb889f9d0d08a67338271fa9b62996bc788c7796a5c18cf057420aaed5eaf"
+checksum = "a9a9d19fa1e79b6215ff29b9d6880b706147f16e9b1dbb1e4e5947b5b02bc5e3"
 dependencies = [
  "either",
 ]
@@ -1144,6 +1152,12 @@ version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b71991ff56294aa922b450139ee08b3bfc70982c6b2c7562771375cf73542dd4"
 
+[[package]]
+name = "itoa"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1aab8fc367588b89dcee83ab0fd66b72b50b72fa1904d7095045ace2b0c81c35"
+
 [[package]]
 name = "js-sys"
 version = "0.3.55"
@@ -1177,9 +1191,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.107"
+version = "0.2.112"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbe5e23404da5b4f555ef85ebed98fb4083e55a00c317800bc2a50ede9f3d219"
+checksum = "1b03d17f364a3a042d5e5d46b053bbbf82c92c9430c592dd4c064dc6ee997125"
 
 [[package]]
 name = "linked-hash-map"
@@ -1264,13 +1278,11 @@ checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
 
 [[package]]
 name = "md-5"
-version = "0.9.1"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b5a279bb9607f9f53c22d496eade00d138d1bdcccd07d74650387cf94942a15"
+checksum = "e6a38fc55c8bbc10058782919516f88826e70320db6d206aebc49611d24216ae"
 dependencies = [
- "block-buffer",
- "digest",
- "opaque-debug",
+ "digest 0.10.1",
 ]
 
 [[package]]
@@ -1281,9 +1293,9 @@ checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
 
 [[package]]
 name = "memoffset"
-version = "0.6.4"
+version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59accc507f1338036a0477ef61afdae33cde60840f4dfe481319ce3ad116ddf9"
+checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
 dependencies = [
  "autocfg",
 ]
@@ -1399,9 +1411,9 @@ dependencies = [
 
 [[package]]
 name = "num_cpus"
-version = "1.13.0"
+version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
+checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
 dependencies = [
  "hermit-abi",
  "libc",
@@ -1409,9 +1421,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
+checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
 
 [[package]]
 name = "oorandom"
@@ -1441,9 +1453,9 @@ dependencies = [
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.70"
+version = "0.9.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c6517987b3f8226b5da3661dad65ff7f300cc59fb5ea8333ca191fc65fde3edf"
+checksum = "7e46109c383602735fa0a2e48dd2b7c892b048e1bf69e5c3b1d804b7d9c203cb"
 dependencies = [
  "autocfg",
  "cc",
@@ -1483,20 +1495,11 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
-[[package]]
-name = "pest"
-version = "2.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10f4872ae94d7b90ae48754df22fd42ad52ce740b8f370b03da4835417403e53"
-dependencies = [
- "ucd-trie",
-]
-
 [[package]]
 name = "phf"
-version = "0.10.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9fc3db1018c4b59d7d582a739436478b6035138b6aecbce989fc91c3e98409f"
+checksum = "fabbf1ead8a5bcbc20f5f8b939ee3f5b0f6f281b6ad3468b84656b658b455259"
 dependencies = [
  "phf_shared",
 ]
@@ -1512,27 +1515,27 @@ dependencies = [
 
 [[package]]
 name = "pin-project"
-version = "0.4.28"
+version = "0.4.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "918192b5c59119d51e0cd221f4d49dde9112824ba717369e903c97d076083d0f"
+checksum = "9615c18d31137579e9ff063499264ddc1278e7b1982757ebc111028c4d1dc909"
 dependencies = [
- "pin-project-internal 0.4.28",
+ "pin-project-internal 0.4.29",
 ]
 
 [[package]]
 name = "pin-project"
-version = "1.0.8"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "576bc800220cc65dac09e99e97b08b358cfab6e17078de8dc5fee223bd2d0c08"
+checksum = "58ad3879ad3baf4e44784bc6a718a8698867bb991f8ce24d1bcbe2cfb4c3a75e"
 dependencies = [
- "pin-project-internal 1.0.8",
+ "pin-project-internal 1.0.10",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "0.4.28"
+version = "0.4.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3be26700300be6d9d23264c73211d8190e755b6b5ca7a1b28230025511b52a5e"
+checksum = "044964427019eed9d49d9d5bbce6047ef18f37100ea400912a9fa4a3523ab12a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1541,9 +1544,9 @@ dependencies = [
 
 [[package]]
 name = "pin-project-internal"
-version = "1.0.8"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e8fe8163d14ce7f0cdac2e040116f22eac817edabff0be91e8aff7e9accf389"
+checksum = "744b6f092ba29c3650faf274db506afd39944f48420f6c86b17cfe0ee1cb36bb"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1558,9 +1561,9 @@ checksum = "257b64915a082f7811703966789728173279bdebb956b143dbcd23f6f970a777"
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.7"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d31d11c69a6b52a174b42bdc0c30e5e11670f90788b2c471c31c1d17d449443"
+checksum = "e280fbe77cc62c91527259e9442153f4688736748d24660126286329742b4c6c"
 
 [[package]]
 name = "pin-utils"
@@ -1570,9 +1573,9 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "pkg-config"
-version = "0.3.22"
+version = "0.3.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12295df4f294471248581bc09bef3c38a5e46f1e36d6a37353621a0c6c357e1f"
+checksum = "58893f751c9b0412871a09abd62ecd2a00298c6c83befa223ef98c52aef40cbe"
 
 [[package]]
 name = "plotters"
@@ -1623,7 +1626,7 @@ dependencies = [
  "fallible-iterator",
  "futures",
  "log",
- "tokio 1.13.0",
+ "tokio 1.15.0",
  "tokio-postgres",
 ]
 
@@ -1635,16 +1638,16 @@ checksum = "1de0ea6504e07ca78355a6fb88ad0f36cafe9e696cbc6717f16a207f3a60be72"
 dependencies = [
  "futures",
  "openssl",
- "tokio 1.13.0",
+ "tokio 1.15.0",
  "tokio-openssl",
  "tokio-postgres",
 ]
 
 [[package]]
 name = "postgres-protocol"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b145e6a4ed52cb316a27787fc20fe8a25221cb476479f61e4e0327c15b98d91a"
+checksum = "79ec03bce71f18b4a27c4c64c6ba2ddf74686d69b91d8714fb32ead3adaed713"
 dependencies = [
  "base64",
  "byteorder",
@@ -1675,9 +1678,9 @@ dependencies = [
 
 [[package]]
 name = "ppv-lite86"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed0cfbc8191465bed66e1718596ee0b0b35d5ee1f41c5df2189d0fe8bde535ba"
+checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
 
 [[package]]
 name = "proc-macro-hack"
@@ -1685,17 +1688,11 @@ version = "0.5.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
 
-[[package]]
-name = "proc-macro-nested"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
-
 [[package]]
 name = "proc-macro2"
-version = "1.0.32"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba508cc11742c0dc5c1659771673afbab7a0efab23aa17e854cbab0837ed0b43"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
 dependencies = [
  "unicode-xid",
 ]
@@ -1708,9 +1705,9 @@ checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
 [[package]]
 name = "quote"
-version = "1.0.10"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38bc8cc6a5f2e3655e0899c1b848643b2562f853f114bfec7be120678e3ace05"
+checksum = "47aa80447ce4daf1717500037052af176af5d38cc3e571d9ec1c7353fc10c87d"
 dependencies = [
  "proc-macro2",
 ]
@@ -1893,15 +1890,6 @@ dependencies = [
  "semver 0.9.0",
 ]
 
-[[package]]
-name = "rustc_version"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0dfe2087c51c460008730de8b57e6a320782fbfb312e1f4d520e6c6fae155ee"
-dependencies = [
- "semver 0.11.0",
-]
-
 [[package]]
 name = "rustc_version"
 version = "0.4.0"
@@ -1913,9 +1901,9 @@ dependencies = [
 
 [[package]]
 name = "ryu"
-version = "1.0.5"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
+checksum = "73b4b750c782965c211b42f022f59af1fbceabdd026623714f104152f1ec149f"
 
 [[package]]
 name = "same-file"
@@ -1947,16 +1935,7 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 dependencies = [
- "semver-parser 0.7.0",
-]
-
-[[package]]
-name = "semver"
-version = "0.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f301af10236f6df4160f7c3f04eec6dbc70ace82d23326abad5edee88801c6b6"
-dependencies = [
- "semver-parser 0.10.2",
+ "semver-parser",
 ]
 
 [[package]]
@@ -1971,20 +1950,11 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
-[[package]]
-name = "semver-parser"
-version = "0.10.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00b0bef5b7f9e0df16536d3961cfb6e84331c065b4066afb39768d0e319411f7"
-dependencies = [
- "pest",
-]
-
 [[package]]
 name = "serde"
-version = "1.0.130"
+version = "1.0.132"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f12d06de37cf59146fbdecab66aa99f9fe4f78722e3607577a5375d66bd0c913"
+checksum = "8b9875c23cf305cd1fd7eb77234cbb705f21ea6a72c637a5c6db5fe4b8e7f008"
 dependencies = [
  "serde_derive",
 ]
@@ -2001,9 +1971,9 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.130"
+version = "1.0.132"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7bc1a1ab1961464eae040d96713baa5a724a8152c1222492465b54322ec508b"
+checksum = "ecc0db5cb2556c0e558887d9bbdcf6ac4471e83ff66cf696e5419024d1606276"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2012,11 +1982,11 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.72"
+version = "1.0.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0ffa0837f2dfa6fb90868c2b5468cad482e175f7dad97e7421951e663f2b527"
+checksum = "bcbd0344bc6533bc7ec56df11d42fb70f1b912351c0825ccb7211b59d8af7cf5"
 dependencies = [
- "itoa",
+ "itoa 1.0.1",
  "ryu",
  "serde",
 ]
@@ -2028,19 +1998,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "edfa57a7f8d9c1d260a549e7224100f6c43d43f9103e06dd8b4095a9b2b43ce9"
 dependencies = [
  "form_urlencoded",
- "itoa",
+ "itoa 0.4.8",
  "ryu",
  "serde",
 ]
 
 [[package]]
 name = "serde_yaml"
-version = "0.8.21"
+version = "0.8.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8c608a35705a5d3cdc9fbe403147647ff34b921f8e833e49306df898f9b20af"
+checksum = "a4a521f2940385c165a24ee286aa8599633d162077a54bdcae2a6fd5a7bfa7a0"
 dependencies = [
- "dtoa",
  "indexmap",
+ "ryu",
  "serde",
  "yaml-rust",
 ]
@@ -2051,10 +2021,10 @@ version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "99cd6713db3cf16b6c84e06321e049a9b9f699826e16096d23bbcc44d15d51a6"
 dependencies = [
- "block-buffer",
+ "block-buffer 0.9.0",
  "cfg-if 1.0.0",
  "cpufeatures",
- "digest",
+ "digest 0.9.0",
  "opaque-debug",
 ]
 
@@ -2066,15 +2036,13 @@ checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
 
 [[package]]
 name = "sha2"
-version = "0.9.8"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b69f9a4c9740d74c5baa3fd2e547f9525fa8088a8a958e0ca2409a514e33f5fa"
+checksum = "900d964dd36bb15bcf2f2b35694c072feab74969a54f2bbeec7a2d725d2bdcb6"
 dependencies = [
- "block-buffer",
  "cfg-if 1.0.0",
  "cpufeatures",
- "digest",
- "opaque-debug",
+ "digest 0.10.1",
 ]
 
 [[package]]
@@ -2207,9 +2175,9 @@ checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
 [[package]]
 name = "syn"
-version = "1.0.81"
+version = "1.0.84"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2afee18b8beb5a596ecb4a2dce128c719b4ba399d34126b9e4396e3f9860966"
+checksum = "ecb2e6da8ee5eb9a61068762a32fa9619cc591ceb055b3687f4cd4051ec2e06b"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2359,16 +2327,15 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.13.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "588b2d10a336da58d877567cd8fb8a14b463e2104910f8132cd054b4b96e29ee"
+checksum = "fbbf1c778ec206785635ce8ad57fe52b3009ae9e0c9f574a728f3049d3e55838"
 dependencies = [
- "autocfg",
  "bytes 1.1.0",
  "libc",
  "memchr",
  "mio 0.7.14",
- "pin-project-lite 0.2.7",
+ "pin-project-lite 0.2.8",
  "winapi 0.3.9",
 ]
 
@@ -2381,7 +2348,7 @@ dependencies = [
  "futures-util",
  "openssl",
  "openssl-sys",
- "tokio 1.13.0",
+ "tokio 1.15.0",
 ]
 
 [[package]]
@@ -2399,11 +2366,11 @@ dependencies = [
  "parking_lot",
  "percent-encoding",
  "phf",
- "pin-project-lite 0.2.7",
+ "pin-project-lite 0.2.8",
  "postgres-protocol",
  "postgres-types",
  "socket2 0.4.2",
- "tokio 1.13.0",
+ "tokio 1.15.0",
  "tokio-util 0.6.9",
 ]
 
@@ -2432,8 +2399,8 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "log",
- "pin-project-lite 0.2.7",
- "tokio 1.13.0",
+ "pin-project-lite 0.2.8",
+ "tokio 1.15.0",
 ]
 
 [[package]]
@@ -2444,7 +2411,7 @@ checksum = "375a639232caf30edfc78e8d89b2d4c375515393e7af7e16f01cd96917fb2105"
 dependencies = [
  "cfg-if 1.0.0",
  "log",
- "pin-project-lite 0.2.7",
+ "pin-project-lite 0.2.8",
  "tracing-core",
 ]
 
@@ -2463,7 +2430,7 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "97d095ae15e245a057c8e8451bab9b3ee1e1f68e9ba2b4fbc18d0ac5237835f2"
 dependencies = [
- "pin-project 1.0.8",
+ "pin-project 1.0.10",
  "tracing",
 ]
 
@@ -2508,15 +2475,9 @@ dependencies = [
 
 [[package]]
 name = "typenum"
-version = "1.14.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b63708a265f51345575b27fe43f9500ad611579e764c79edbc2037b1121959ec"
-
-[[package]]
-name = "ucd-trie"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56dee185309b50d1f11bfedef0fe6d036842e3fb77413abef29f8f8d1c5d4c1c"
+checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
 
 [[package]]
 name = "unicode-bidi"
@@ -2577,9 +2538,9 @@ checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
 [[package]]
 name = "version_check"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "walkdir"
diff --git a/src/coordinator_actor.rs b/src/coordinator_actor.rs
index ec10d7b0..0bbdb5d3 100644
--- a/src/coordinator_actor.rs
+++ b/src/coordinator_actor.rs
@@ -3,16 +3,11 @@ use actix::{Actor, Addr, Context, Handler};
 use crate::messages;
 use crate::worker_actor::WorkerActor;
 
+#[derive(Default)]
 pub struct CoordinatorActor {
     workers: Vec<Addr<WorkerActor>>,
 }
 
-impl Default for CoordinatorActor {
-    fn default() -> CoordinatorActor {
-        CoordinatorActor { workers: vec![] }
-    }
-}
-
 impl Actor for CoordinatorActor {
     type Context = Context<Self>;
 }