diff --git a/Cargo.lock b/Cargo.lock
index 0d1aeb8..83e8d86 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8,7 +8,7 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57a7559404a7f3573127aab53c08ce37a6c6a315c374a31070f3c91cd1b4a7fe"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "bytes",
  "futures-core",
  "futures-sink",
@@ -21,9 +21,9 @@ dependencies = [
 
 [[package]]
 name = "actix-http"
-version = "3.2.2"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c83abf9903e1f0ad9973cc4f7b9767fd5a03a583f51a5b7a339e07987cd2724"
+checksum = "a92ef85799cba03f76e4f7c10f533e66d87c9a7e7055f3391f09000ad8351bc9"
 dependencies = [
  "actix-codec",
  "actix-rt",
@@ -31,7 +31,7 @@ dependencies = [
  "actix-utils",
  "ahash",
  "base64",
- "bitflags",
+ "bitflags 2.4.0",
  "brotli",
  "bytes",
  "bytestring",
@@ -52,6 +52,8 @@ dependencies = [
  "rand",
  "sha1",
  "smallvec",
+ "tokio",
+ "tokio-util",
  "tracing",
  "zstd",
 ]
@@ -63,7 +65,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "465a6172cf69b960917811022d8f29bc0b7fa1398bc4f78b3c466673db1213b6"
 dependencies = [
  "quote",
- "syn",
+ "syn 1.0.99",
 ]
 
 [[package]]
@@ -103,7 +105,7 @@ dependencies = [
  "futures-util",
  "mio",
  "num_cpus",
- "socket2",
+ "socket2 0.4.7",
  "tokio",
  "tracing",
 ]
@@ -131,9 +133,9 @@ dependencies = [
 
 [[package]]
 name = "actix-web"
-version = "4.2.0"
+version = "4.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b482a38b5d7b97f9bd4b69e667b49c92634dbcde71b305d039c75dd63f526f56"
+checksum = "0e4a5b5e29603ca8c94a77c65cf874718ceb60292c5a5c3e5f4ace041af462b9"
 dependencies = [
  "actix-codec",
  "actix-http",
@@ -153,7 +155,6 @@ dependencies = [
  "encoding_rs",
  "futures-core",
  "futures-util",
- "http",
  "itoa",
  "language-tags",
  "log",
@@ -165,21 +166,30 @@ dependencies = [
  "serde_json",
  "serde_urlencoded",
  "smallvec",
- "socket2",
+ "socket2 0.5.4",
  "time",
  "url",
 ]
 
 [[package]]
 name = "actix-web-codegen"
-version = "4.1.0"
+version = "4.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fa9362663c8643d67b2d5eafba49e4cb2c8a053a29ed00a0bea121f17c76b13"
+checksum = "eb1f50ebbb30eca122b188319a4398b3f7bb4a8cdf50ecfb73bfc6a3c3ce54f5"
 dependencies = [
  "actix-router",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.37",
+]
+
+[[package]]
+name = "addr2line"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
+dependencies = [
+ "gimli",
 ]
 
 [[package]]
@@ -190,10 +200,11 @@ checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "ahash"
-version = "0.7.6"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
+checksum = "2c99f64d1e06488f620f932677e24bc6e2897582980441ae90a671415bd7ec2f"
 dependencies = [
+ "cfg-if",
  "getrandom",
  "once_cell",
  "version_check",
@@ -241,10 +252,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
-name = "base64"
-version = "0.13.0"
+name = "backtrace"
+version = "0.3.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
+checksum = "2089b7e3f35b9dd2d0ed921ead4f6d318c27680d4a5bd167b3ee120edb105837"
+dependencies = [
+ "addr2line",
+ "cc",
+ "cfg-if",
+ "libc",
+ "miniz_oxide 0.7.1",
+ "object",
+ "rustc-demangle",
+]
+
+[[package]]
+name = "base64"
+version = "0.21.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ba43ea6f343b788c8764558649e08df62f86c6ef251fdaeb1ffd010a9ae50a2"
 
 [[package]]
 name = "bitflags"
@@ -252,6 +278,12 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bitflags"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4682ae6287fcf752ecaabbfcc7b6f9b72aa33933dc23a554d853aea8eea8635"
+
 [[package]]
 name = "block-buffer"
 version = "0.10.3"
@@ -387,7 +419,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustc_version",
- "syn",
+ "syn 1.0.99",
 ]
 
 [[package]]
@@ -424,7 +456,7 @@ dependencies = [
  "cfg-if",
  "libc",
  "redox_syscall",
- "windows-sys",
+ "windows-sys 0.36.1",
 ]
 
 [[package]]
@@ -440,7 +472,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f82b0f4c27ad9f8bfd1f3208d882da2b09c301bc1c828fd3a00d0216d2fbbff6"
 dependencies = [
  "crc32fast",
- "miniz_oxide",
+ "miniz_oxide 0.5.4",
 ]
 
 [[package]]
@@ -511,10 +543,16 @@ dependencies = [
 ]
 
 [[package]]
-name = "h2"
-version = "0.3.14"
+name = "gimli"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ca32592cf21ac7ccab1825cd87f6c9b3d9022c44d086172ed0966bec8af30be"
+checksum = "6fb8d784f27acf97159b40fc4db5ecd8aa23b9ad5ef69cdd136d3bc80665f0c0"
+
+[[package]]
+name = "h2"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91fc23aa11be92976ef4729127f1a74adf36d8436f7816b185d18df956790833"
 dependencies = [
  "bytes",
  "fnv",
@@ -593,7 +631,7 @@ version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8069d3ec154eb856955c1c0fbffefbf5f3c40a104ec912d4797314c1801abff"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "inotify-sys",
  "libc",
 ]
@@ -638,7 +676,7 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8367585489f01bc55dd27404dcf56b95e6da061a256a666ab23be9ba96a2e587"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "libc",
 ]
 
@@ -650,15 +688,15 @@ checksum = "d4345964bb142484797b161f473a503a434de77149dd8c7427788c6e13379388"
 
 [[package]]
 name = "libc"
-version = "0.2.132"
+version = "0.2.148"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8371e4e5341c3a96db127eb2465ac681ced4c433e01dd0e938adbef26ba93ba5"
+checksum = "9cdc71e17332e86d2e1d38c1f99edcb6288ee11b815fb1a4b049eaa2114d369b"
 
 [[package]]
 name = "linemux"
-version = "0.2.4"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51157eba73f3dae3b17ae3ea5b29a8ad0346bdff3881e9a00646b827db066a83"
+checksum = "feb035c7806bd7982a317d8d66815021e91f7ab14a5fbedee22b06f608f11b43"
 dependencies = [
  "futures-util",
  "notify",
@@ -725,24 +763,33 @@ dependencies = [
 ]
 
 [[package]]
-name = "mio"
-version = "0.8.4"
+name = "miniz_oxide"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57ee1c23c7c63b0c9250c339ffdc69255f110b298b901b9f6c82547b7b87caaf"
+checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
+dependencies = [
+ "adler",
+]
+
+[[package]]
+name = "mio"
+version = "0.8.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "927a765cd3fc26206e66b296465fa9d3e5ab003e651c1b3c060e7956d96b19d2"
 dependencies = [
  "libc",
  "log",
  "wasi",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "notify"
-version = "5.0.0-pre.16"
+version = "5.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "530f6314d6904508082f4ea424a0275cf62d341e118b313663f266429cb19693"
+checksum = "729f63e1ca555a43fe3efa4f3efdf4801c479da85b432242a7b726f353c88486"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "crossbeam-channel",
  "filetime",
  "inotify",
@@ -750,7 +797,7 @@ dependencies = [
  "libc",
  "mio",
  "walkdir",
- "winapi",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
@@ -772,6 +819,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "object"
+version = "0.32.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9cf5f9dd3933bd50a9e1f149ec995f39ae2c496d31fd772c1fd45ebc27e902b0"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.14.0"
@@ -798,7 +854,7 @@ dependencies = [
  "libc",
  "redox_syscall",
  "smallvec",
- "windows-sys",
+ "windows-sys 0.36.1",
 ]
 
 [[package]]
@@ -821,9 +877,9 @@ checksum = "478c572c3d73181ff3c2539045f6eb99e5491218eae919370993b890cdbdd98e"
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.9"
+version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
+checksum = "8afb450f006bf6385ca15ef45d71d2288452bc3683ce2e2cacc0d18e4be60b58"
 
 [[package]]
 name = "pin-utils"
@@ -831,6 +887,12 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
+name = "pkg-config"
+version = "0.3.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.16"
@@ -839,41 +901,41 @@ checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.43"
+version = "1.0.67"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a2ca2c61bc9f3d74d2886294ab7b9853abd9c1ad903a3ac7815c58989bb7bab"
+checksum = "3d433d9f1a3e8c1263d9456598b16fec66f4acc9a74dacffd35c7bb09b3a1328"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "prometheus-client"
-version = "0.18.0"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c473049631c233933d6286c88bbb7be30e62ec534cf99a9ae0079211f7fa603"
+checksum = "3c99afa9a01501019ac3a14d71d9f94050346f55ca471ce90c799a15c58f61e2"
 dependencies = [
  "dtoa",
  "itoa",
  "parking_lot",
- "prometheus-client-derive-text-encode",
+ "prometheus-client-derive-encode",
 ]
 
 [[package]]
-name = "prometheus-client-derive-text-encode"
-version = "0.3.0"
+name = "prometheus-client-derive-encode"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "66a455fbcb954c1a7decf3c586e860fd7889cddf4b8e164be736dbac95a953cd"
+checksum = "440f724eba9f6996b75d63681b0a92b06947f1457076d503a4d2e2c8f56442b8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.37",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.21"
+version = "1.0.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179"
+checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
 dependencies = [
  "proc-macro2",
 ]
@@ -914,7 +976,7 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
 ]
 
 [[package]]
@@ -934,6 +996,12 @@ version = "0.6.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
 
+[[package]]
+name = "rustc-demangle"
+version = "0.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
+
 [[package]]
 name = "rustc_version"
 version = "0.4.0"
@@ -1044,6 +1112,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4031e820eb552adee9295814c0ced9e5cf38ddf1e8b7d566d6de8e2538ea989e"
+dependencies = [
+ "libc",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "syn"
 version = "1.0.99"
@@ -1055,6 +1133,17 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "syn"
+version = "2.0.37"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7303ef2c05cd654186cb250d29049a24840ca25d2747c25c0381c8d9e2f582e8"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "time"
 version = "0.3.14"
@@ -1090,33 +1179,31 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.21.0"
+version = "1.32.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89797afd69d206ccd11fb0ea560a44bbb87731d020670e79416d442919257d42"
+checksum = "17ed6077ed6cd6c74735e21f37eb16dc3935f96878b1fe961074089cc80893f9"
 dependencies = [
- "autocfg",
+ "backtrace",
  "bytes",
  "libc",
- "memchr",
  "mio",
- "once_cell",
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
- "socket2",
+ "socket2 0.5.4",
  "tokio-macros",
- "winapi",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "tokio-macros"
-version = "1.8.0"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9724f9a975fb987ef7a3cd9be0350edcbe130698af5b8f7a631e23d42d052484"
+checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.37",
 ]
 
 [[package]]
@@ -1252,37 +1339,157 @@ version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ea04155a16a59f9eab786fe12a4a450e75cdb175f9e0d80da1e17db09f55b8d2"
 dependencies = [
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_msvc",
+ "windows_aarch64_msvc 0.36.1",
+ "windows_i686_gnu 0.36.1",
+ "windows_i686_msvc 0.36.1",
+ "windows_x86_64_gnu 0.36.1",
+ "windows_x86_64_msvc 0.36.1",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets 0.42.2",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets 0.48.5",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
+dependencies = [
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.5",
+ "windows_aarch64_msvc 0.48.5",
+ "windows_i686_gnu 0.48.5",
+ "windows_i686_msvc 0.48.5",
+ "windows_x86_64_gnu 0.48.5",
+ "windows_x86_64_gnullvm 0.48.5",
+ "windows_x86_64_msvc 0.48.5",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
 [[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_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
 [[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_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.36.1"
@@ -1290,19 +1497,31 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
 
 [[package]]
-name = "zstd"
-version = "0.11.2+zstd.1.5.2"
+name = "windows_x86_64_msvc"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20cc960326ece64f010d2d2107537f26dc589a6573a316bd5b1dba685fa5fde4"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
+[[package]]
+name = "zstd"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a27595e173641171fc74a1232b7b1c7a7cb6e18222c11e9dfb9888fa424c53c"
 dependencies = [
  "zstd-safe",
 ]
 
 [[package]]
 name = "zstd-safe"
-version = "5.0.2+zstd.1.5.2"
+version = "6.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d2a5585e04f9eea4b2a3d1eca508c4dee9592a89ef6f450c11719da0726f4db"
+checksum = "ee98ffd0b48ee95e6c5168188e44a54550b1564d9d530ee21d5f0eaed1069581"
 dependencies = [
  "libc",
  "zstd-sys",
@@ -1310,10 +1529,11 @@ dependencies = [
 
 [[package]]
 name = "zstd-sys"
-version = "2.0.1+zstd.1.5.2"
+version = "2.0.8+zstd.1.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fd07cbbc53846d9145dbffdf6dd09a7a0aa52be46741825f5c97bdd4f73f12b"
+checksum = "5556e6ee25d32df2586c098bbfa278803692a20d0ab9565e049480d52707ec8c"
 dependencies = [
  "cc",
  "libc",
+ "pkg-config",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 624b600..b19fb98 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,8 +10,8 @@ path = "src/main.rs"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-actix-web = "4.1.0"
-linemux = "0.2.4"
+actix-web = "4.4.0"
+linemux = "0.3.0"
 path-slash = "0.2.1"
-prometheus-client = "0.18.0"
-tokio = { version = "1", features = ["rt", "macros", "signal"] }
+prometheus-client = "0.21.2"
+tokio = { version = "1.32.0", features = ["rt", "macros", "signal"] }
diff --git a/src/apache_metrics.rs b/src/apache_metrics.rs
index 4421041..8e9d0c9 100644
--- a/src/apache_metrics.rs
+++ b/src/apache_metrics.rs
@@ -2,7 +2,7 @@ use prometheus_client::metrics::counter::Counter;
 use prometheus_client::metrics::family::Family;
 use prometheus_client::registry::Registry;
 
-type SingleLabel = (&'static str, String);
+type SingleLabel = [(&'static str, String); 1];
 
 #[derive(Clone)]
 pub struct ApacheMetrics {
@@ -19,9 +19,9 @@ impl ApacheMetrics {
 			errors_total: Family::<SingleLabel, Counter>::default()
 		};
 		
-		registry.register("apache_requests", "Number of received requests", Box::new(metrics.requests_total.clone()));
-		registry.register("apache_errors", "Number of logged errors", Box::new(metrics.errors_total.clone()));
+		registry.register("apache_requests", "Number of received requests", metrics.requests_total.clone());
+		registry.register("apache_errors", "Number of logged errors", metrics.errors_total.clone());
 		
-		return (registry, metrics);
+		(registry, metrics)
 	}
 }
diff --git a/src/log_file_pattern.rs b/src/log_file_pattern.rs
index ef65deb..6c20289 100644
--- a/src/log_file_pattern.rs
+++ b/src/log_file_pattern.rs
@@ -14,7 +14,7 @@ use path_slash::PathExt;
 /// 2. A path with a wildcard anywhere in the file name.
 /// 3. A path with a standalone wildcard component (i.e. no prefix or suffix in the folder name).
 pub fn parse_log_file_pattern_from_env(variable_name: &str) -> Result<LogFilePattern, String> {
-	return match env::var(variable_name) {
+	match env::var(variable_name) {
 		Ok(str) => {
 			let pattern_str = Path::new(&str).to_slash().ok_or(format!("Environment variable {} contains an invalid path.", variable_name))?;
 			parse_log_file_pattern_from_str(&pattern_str)
@@ -23,7 +23,7 @@ pub fn parse_log_file_pattern_from_env(variable_name: &str) -> Result<LogFilePat
 			VarError::NotPresent => Err(format!("Environment variable {} must be set.", variable_name)),
 			VarError::NotUnicode(_) => Err(format!("Environment variable {} contains invalid characters.", variable_name))
 		}
-	};
+	}
 }
 
 fn parse_log_file_pattern_from_str(pattern_str: &str) -> Result<LogFilePattern, String> {
@@ -31,11 +31,11 @@ fn parse_log_file_pattern_from_str(pattern_str: &str) -> Result<LogFilePattern,
 		return Err(String::from("Path is empty."));
 	}
 	
-	return if let Some((left, right)) = pattern_str.split_once('*') {
+	if let Some((left, right)) = pattern_str.split_once('*') {
 		parse_log_file_pattern_split_on_wildcard(left, right)
 	} else {
 		Ok(LogFilePattern::WithoutWildcard(pattern_str.to_string()))
-	};
+	}
 }
 
 fn parse_log_file_pattern_split_on_wildcard(left: &str, right: &str) -> Result<LogFilePattern, String> {
@@ -54,7 +54,7 @@ fn parse_log_file_pattern_split_on_wildcard(left: &str, right: &str) -> Result<L
 		return Err(String::from("Path has a folder wildcard with a prefix or suffix."));
 	}
 	
-	return if let Some((folder_path, file_name_prefix)) = left.rsplit_once('/') {
+	if let Some((folder_path, file_name_prefix)) = left.rsplit_once('/') {
 		Ok(LogFilePattern::WithFileNameWildcard(PatternWithFileNameWildcard {
 			path: folder_path.to_string(),
 			file_name_prefix: file_name_prefix.to_string(),
@@ -66,7 +66,7 @@ fn parse_log_file_pattern_split_on_wildcard(left: &str, right: &str) -> Result<L
 			file_name_prefix: left.to_string(),
 			file_name_suffix: right.to_string(),
 		}))
-	};
+	}
 }
 
 #[derive(Debug)]
@@ -82,11 +82,10 @@ impl PatternWithFileNameWildcard {
 	}
 	
 	fn match_wildcard_on_dir_entry(&self, dir_entry: &DirEntry) -> Option<String> {
-		return if let Some(wildcard_match) = dir_entry.file_name().to_str().and_then(|file_name| self.match_wildcard(file_name)) {
-			Some(wildcard_match.to_string())
-		} else {
-			None
-		};
+		dir_entry.file_name()
+			.to_str()
+			.and_then(|file_name| self.match_wildcard(file_name))
+			.map(|wildcard_match| wildcard_match.to_string())
 	}
 }
 
@@ -115,22 +114,22 @@ pub enum LogFilePattern {
 
 impl LogFilePattern {
 	pub fn search(&self) -> Result<Vec<LogFilePath>, io::Error> { // TODO error message
-		return match self {
+		match self {
 			Self::WithoutWildcard(path) => Self::search_without_wildcard(path),
 			Self::WithFileNameWildcard(pattern) => Self::search_with_file_name_wildcard(pattern),
 			Self::WithFolderNameWildcard(pattern) => Self::search_with_folder_name_wildcard(pattern)
-		};
+		}
 	}
 	
 	fn search_without_wildcard(path_str: &String) -> Result<Vec<LogFilePath>, io::Error> {
 		let path = Path::new(path_str);
 		let is_valid = path.is_file() || matches!(path.parent(), Some(parent) if parent.is_dir());
 		
-		return if is_valid {
+		if is_valid {
 			Ok(vec![LogFilePath::with_empty_label(path_str)])
 		} else {
 			Err(io::Error::from(ErrorKind::NotFound))
-		};
+		}
 	}
 	
 	fn search_with_file_name_wildcard(pattern: &PatternWithFileNameWildcard) -> Result<Vec<LogFilePath>, io::Error> {
@@ -143,7 +142,7 @@ impl LogFilePattern {
 			}
 		}
 		
-		return Ok(result);
+		Ok(result)
 	}
 	
 	fn search_with_folder_name_wildcard(pattern: &PatternWithFolderNameWildcard) -> Result<Vec<LogFilePath>, io::Error> {
@@ -159,7 +158,7 @@ impl LogFilePattern {
 			}
 		}
 		
-		return Ok(result);
+		Ok(result)
 	}
 }
 
@@ -170,10 +169,10 @@ pub struct LogFilePath {
 
 impl LogFilePath {
 	fn with_empty_label(s: &String) -> LogFilePath {
-		return LogFilePath {
+		LogFilePath {
 			path: PathBuf::from(s),
 			label: String::default(),
-		};
+		}
 	}
 }
 
@@ -209,12 +208,12 @@ mod tests {
 	
 	#[test]
 	fn valid_with_file_name_wildcard_prefix() {
-		assert!(matches!(parse_log_file_pattern_from_str("/path/to/files/access_*"), Ok(LogFilePattern::WithFileNameWildcard(pattern)) if pattern.path == "/path/to/files" && pattern.file_name_prefix == "access_" && pattern.file_name_suffix == ""));
+		assert!(matches!(parse_log_file_pattern_from_str("/path/to/files/access_*"), Ok(LogFilePattern::WithFileNameWildcard(pattern)) if pattern.path == "/path/to/files" && pattern.file_name_prefix == "access_" && pattern.file_name_suffix.is_empty()));
 	}
 	
 	#[test]
 	fn valid_with_file_name_wildcard_suffix() {
-		assert!(matches!(parse_log_file_pattern_from_str("/path/to/files/*_access.log"), Ok(LogFilePattern::WithFileNameWildcard(pattern)) if pattern.path == "/path/to/files" && pattern.file_name_prefix == "" && pattern.file_name_suffix == "_access.log"));
+		assert!(matches!(parse_log_file_pattern_from_str("/path/to/files/*_access.log"), Ok(LogFilePattern::WithFileNameWildcard(pattern)) if pattern.path == "/path/to/files" && pattern.file_name_prefix.is_empty() && pattern.file_name_suffix == "_access.log"));
 	}
 	
 	#[test]
diff --git a/src/log_watcher.rs b/src/log_watcher.rs
index 9c2b2d0..eb7e3c3 100644
--- a/src/log_watcher.rs
+++ b/src/log_watcher.rs
@@ -21,8 +21,8 @@ struct LogFileInfo<'a> {
 }
 
 impl<'a> LogFileInfo<'a> {
-	fn get_label_set(&self) -> (&'static str, String) {
-		return ("file", self.label.clone());
+	fn get_label_set(&self) -> [(&'static str, String); 1] {
+		[("file", self.label.clone())]
 	}
 }
 
@@ -40,10 +40,10 @@ struct LogWatcher<'a> {
 
 impl<'a> LogWatcher<'a> {
 	fn new() -> io::Result<LogWatcher<'a>> {
-		return Ok(LogWatcher {
+		Ok(LogWatcher {
 			reader: MuxedLines::new()?,
 			files: HashMap::new(),
-		});
+		})
 	}
 	
 	fn count_files_of_kind(&self, kind: LogFileKind) -> usize {
diff --git a/src/main.rs b/src/main.rs
index ba10a8c..cd6d515 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -16,8 +16,8 @@ mod log_parser;
 mod log_watcher;
 mod web_server;
 
-const ACCESS_LOG_FILE_PATTERN: &'static str = "ACCESS_LOG_FILE_PATTERN";
-const ERROR_LOG_FILE_PATTERN: &'static str = "ERROR_LOG_FILE_PATTERN";
+const ACCESS_LOG_FILE_PATTERN: &str = "ACCESS_LOG_FILE_PATTERN";
+const ERROR_LOG_FILE_PATTERN: &str = "ERROR_LOG_FILE_PATTERN";
 
 fn find_log_files(environment_variable_name: &str, log_kind: &str) -> Option<Vec<LogFilePath>> {
 	let log_file_pattern = match parse_log_file_pattern_from_env(environment_variable_name) {
@@ -45,7 +45,7 @@ fn find_log_files(environment_variable_name: &str, log_kind: &str) -> Option<Vec
 		println!("Found {} file: {} (label \"{}\")", log_kind, log_file.path.display(), log_file.label);
 	}
 	
-	return Some(log_files);
+	Some(log_files)
 }
 
 #[tokio::main(flavor = "current_thread")]
diff --git a/src/web_server.rs b/src/web_server.rs
index e7a292c..9ea54fb 100644
--- a/src/web_server.rs
+++ b/src/web_server.rs
@@ -1,4 +1,4 @@
-use std::str;
+use std::{fmt, str};
 use std::sync::Mutex;
 use std::time::Duration;
 
@@ -24,7 +24,7 @@ pub fn create_web_server(host: &str, port: u16, metrics_registry: Mutex<Registry
 	let server = server.bind((host, port));
 
 	println!("[WebServer] Starting web server on {0}:{1} with metrics endpoint: http://{0}:{1}/metrics", host, port);
-	return server.unwrap().run();
+	server.unwrap().run()
 }
 
 pub async fn run_web_server(server: Server) {
@@ -33,22 +33,37 @@ pub async fn run_web_server(server: Server) {
 	}
 }
 
+//noinspection SpellCheckingInspection
 async fn metrics_handler(metrics_registry: web::Data<Mutex<Registry>>) -> Result<HttpResponse> {
-	let mut buf = Vec::new();
-	
-	{
-		if let Ok(metrics_registry) = metrics_registry.lock() {
-			encode(&mut buf, &metrics_registry)?;
-		} else {
-			println!("[WebServer] Failed acquiring lock on registry.");
-			return Ok(HttpResponse::InternalServerError().body(""));
+	let response = match encode_metrics(metrics_registry) {
+		MetricsEncodeResult::Ok(buf) => {
+			HttpResponse::Ok().content_type("application/openmetrics-text; version=1.0.0; charset=utf-8").body(buf)
 		}
-	}
+		MetricsEncodeResult::FailedAcquiringRegistryLock => {
+			println!("[WebServer] Failed acquiring lock on registry.");
+			HttpResponse::InternalServerError().body("")
+		}
+		MetricsEncodeResult::FailedEncodingMetrics(e) => {
+			println!("[WebServer] Error encoding metrics: {}", e);
+			HttpResponse::InternalServerError().body("")
+		}
+	};
 	
-	if let Ok(buf) = String::from_utf8(buf) {
-		Ok(HttpResponse::Ok().content_type("application/openmetrics-text; version=1.0.0; charset=utf-8").body(buf))
+	Ok(response)
+}
+
+enum MetricsEncodeResult {
+	Ok(String),
+	FailedAcquiringRegistryLock,
+	FailedEncodingMetrics(fmt::Error),
+}
+
+fn encode_metrics(metrics_registry: web::Data<Mutex<Registry>>) -> MetricsEncodeResult {
+	let mut buf = String::new();
+	
+	return if let Ok(metrics_registry) = metrics_registry.lock() {
+		encode(&mut buf, &metrics_registry).map_or_else(MetricsEncodeResult::FailedEncodingMetrics, |_| MetricsEncodeResult::Ok(buf))
 	} else {
-		println!("[WebServer] Failed converting buffer to UTF-8.");
-		Ok(HttpResponse::InternalServerError().body(""))
+		MetricsEncodeResult::FailedAcquiringRegistryLock
 	}
 }