diff --git a/Cargo.lock b/Cargo.lock
index 1d7f716..e62e91d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -16,15 +16,6 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e"
 
-[[package]]
-name = "ahash"
-version = "0.3.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8fd72866655d1904d6b0997d0b07ba561047d070fbe29de039031c641b61217"
-dependencies = [
- "const-random",
-]
-
 [[package]]
 name = "aho-corasick"
 version = "0.7.13"
@@ -53,9 +44,9 @@ dependencies = [
 
 [[package]]
 name = "async-tungstenite"
-version = "0.9.3"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ce503a5cb1e7450af7d211b86b84807791b251f335b2f43f1e26b85a416f315"
+checksum = "f7cc5408453d37e2b1c6f01d8078af1da58b6cfa6a80fa2ede3bd2b9a6ada9c4"
 dependencies = [
  "futures-io",
  "futures-util",
@@ -75,7 +66,7 @@ checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
 dependencies = [
  "hermit-abi",
  "libc",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -129,6 +120,12 @@ version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
 
+[[package]]
+name = "bytes"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b700ce4376041dcd0a327fd0097c41095743c4c8af8887265942faf1100bd040"
+
 [[package]]
 name = "cc"
 version = "1.0.59"
@@ -141,6 +138,12 @@ version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
 [[package]]
 name = "chrono"
 version = "0.4.15"
@@ -155,48 +158,28 @@ dependencies = [
 
 [[package]]
 name = "codeforces"
-version = "0.2.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07443ebea310b4bbfd0c9ee79d25cf678fa1e7c82916bb32307af7a7ef1fe600"
+checksum = "7df54b4689d51d58162c8b76a642ba44d6128b68f29c3fbc23815e6ea4bfef15"
 dependencies = [
- "futures-timer",
  "futures-util",
  "reqwest",
  "serde",
  "serde_json",
+ "tokio",
 ]
 
 [[package]]
 name = "command_attr"
-version = "0.3.1"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8dc8da29004a4dd9b89d21b2e17ccd372c1ff085bdab9e22b989096db1289d01"
+checksum = "ef54b146e4ff8a036b9d632fd48c183c9757992535e5f557275f4a01dfd9c7c7"
 dependencies = [
  "proc-macro2",
  "quote",
  "syn",
 ]
 
-[[package]]
-name = "const-random"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f1af9ac737b2dd2d577701e59fd09ba34822f6f2ebdb30a7647405d9e55e16a"
-dependencies = [
- "const-random-macro",
- "proc-macro-hack",
-]
-
-[[package]]
-name = "const-random-macro"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25e4c606eb459dd29f7c57b2e0879f2b6f14ee130918c2b78ccb58a9624e6c7a"
-dependencies = [
- "getrandom",
- "proc-macro-hack",
-]
-
 [[package]]
 name = "core-foundation"
 version = "0.7.0"
@@ -225,17 +208,16 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
 ]
 
 [[package]]
 name = "dashmap"
-version = "3.11.10"
+version = "4.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f260e2fc850179ef410018660006951c1b55b79e8087e87111a2c388994b9b5"
+checksum = "e77a43b28d0668df09411cb0bc9a8c2adc40f9a048afe863e05fd43251e8e39c"
 dependencies = [
- "ahash",
- "cfg-if",
+ "cfg-if 1.0.0",
  "num_cpus",
 ]
 
@@ -266,7 +248,7 @@ version = "0.8.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a51b8cf747471cb9499b6d59e59b0444f4c90eba8968c4e44874e92b5b64ace2"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
 ]
 
 [[package]]
@@ -288,7 +270,7 @@ version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "766d0e77a2c1502169d4a93ff3b8c15a71fd946cd0126309752104e5f3c46d94"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "crc32fast",
  "libc",
  "miniz_oxide",
@@ -296,12 +278,14 @@ dependencies = [
 
 [[package]]
 name = "flume"
-version = "0.9.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f7d4f1d85cb8cafb73c01d872e0124a96e603f5b7633ce1eac70015f066e946"
+checksum = "0362ef9c4c1fa854ff95b4cb78045a86e810d804dc04937961988b45427104a9"
 dependencies = [
- "futures",
- "rand",
+ "futures-core",
+ "futures-sink",
+ "nanorand",
+ "pin-project 1.0.2",
  "spinning_top",
 ]
 
@@ -327,21 +311,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
 
 [[package]]
-name = "fuchsia-zircon"
-version = "0.3.3"
+name = "form_urlencoded"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
+checksum = "ece68d15c92e84fa4f19d3780f1294e5ca82a78a6d515f1efaabcc144688be00"
 dependencies = [
- "bitflags",
- "fuchsia-zircon-sys",
+ "matches",
+ "percent-encoding",
 ]
 
-[[package]]
-name = "fuchsia-zircon-sys"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
-
 [[package]]
 name = "futures"
 version = "0.3.5"
@@ -405,12 +383,6 @@ dependencies = [
  "once_cell",
 ]
 
-[[package]]
-name = "futures-timer"
-version = "3.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e64b03909df88034c26dc1547e8970b91f98bdb65165d6a4e9110d94263dbb2c"
-
 [[package]]
 name = "futures-util"
 version = "0.3.5"
@@ -447,18 +419,31 @@ version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc587bc0ec293155d5bfa6b9891ec18a1e330c234f896ea47fbada4cadbe47e6"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "libc",
  "wasi 0.9.0+wasi-snapshot-preview1",
 ]
 
 [[package]]
-name = "h2"
-version = "0.2.6"
+name = "getrandom"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "993f9e0baeed60001cf565546b0d3dbe6a6ad23f2bd31644a133c641eccf6d53"
+checksum = "4060f4657be78b8e766215b02b18a2e862d83745545de804638e2b545e81aee6"
 dependencies = [
- "bytes",
+ "cfg-if 1.0.0",
+ "js-sys",
+ "libc",
+ "wasi 0.10.0+wasi-snapshot-preview1",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "h2"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b67e66362108efccd8ac053abafc8b7a8d86a37e6e48fc4f6f7485eb5e9e6a5"
+dependencies = [
+ "bytes 1.0.1",
  "fnv",
  "futures-core",
  "futures-sink",
@@ -469,6 +454,7 @@ dependencies = [
  "tokio",
  "tokio-util",
  "tracing",
+ "tracing-futures",
 ]
 
 [[package]]
@@ -492,18 +478,18 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "28d569972648b2c512421b5f2a405ad6ac9666547189d0c5477a3f200f3e02f9"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "fnv",
  "itoa",
 ]
 
 [[package]]
 name = "http-body"
-version = "0.3.1"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13d5ff830006f7646652e057693569bfe0d51760c0085a071769d142a205111b"
+checksum = "2861bd27ee074e5ee891e8b539837a9430012e249d7f0ca2d795650f579c1994"
 dependencies = [
- "bytes",
+ "bytes 1.0.1",
  "http",
 ]
 
@@ -513,6 +499,12 @@ version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cd179ae861f0c2e53da70d892f5f3029f9594be0c41dc5269cd371691b1dc2f9"
 
+[[package]]
+name = "httpdate"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "494b4d60369511e7dea41cf646832512a94e542f68bb9c49e54518e0f468eb47"
+
 [[package]]
 name = "humantime"
 version = "1.3.0"
@@ -524,11 +516,11 @@ dependencies = [
 
 [[package]]
 name = "hyper"
-version = "0.13.7"
+version = "0.14.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e68a8dd9716185d9e64ea473ea6ef63529252e3e27623295a0378a19665d5eb"
+checksum = "12219dc884514cb4a6a03737f4413c0e01c23a1b059b0156004b23f1e19dccbe"
 dependencies = [
- "bytes",
+ "bytes 1.0.1",
  "futures-channel",
  "futures-core",
  "futures-util",
@@ -536,10 +528,10 @@ dependencies = [
  "http",
  "http-body",
  "httparse",
+ "httpdate",
  "itoa",
- "pin-project 0.4.23",
+ "pin-project 1.0.2",
  "socket2",
- "time",
  "tokio",
  "tower-service",
  "tracing",
@@ -548,11 +540,10 @@ dependencies = [
 
 [[package]]
 name = "hyper-rustls"
-version = "0.21.0"
+version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37743cc83e8ee85eacfce90f2f4102030d9ff0a95244098d781e9bee4a90abb6"
+checksum = "5f9f7a97316d44c0af9b0301e65010573a853a9fc97046d7331d7f6bc0fd5a64"
 dependencies = [
- "bytes",
  "futures-util",
  "hyper",
  "log",
@@ -564,15 +555,15 @@ dependencies = [
 
 [[package]]
 name = "hyper-tls"
-version = "0.4.3"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d979acc56dcb5b8dddba3917601745e877576475aa046df3226eabdecef78eed"
+checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
 dependencies = [
- "bytes",
+ "bytes 1.0.1",
  "hyper",
  "native-tls",
  "tokio",
- "tokio-tls",
+ "tokio-native-tls",
 ]
 
 [[package]]
@@ -602,16 +593,7 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19a8a95243d5a0398cae618ec29477c6e3cb631152be5c19481f80bc71559754"
 dependencies = [
- "bytes",
-]
-
-[[package]]
-name = "iovec"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2b3ea6ff95e175473f8ffe6a7eb7c00d054240321b84c57051175fe3c1e075e"
-dependencies = [
- "libc",
+ "bytes 0.5.6",
 ]
 
 [[package]]
@@ -635,16 +617,6 @@ dependencies = [
  "wasm-bindgen",
 ]
 
-[[package]]
-name = "kernel32-sys"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
-dependencies = [
- "winapi 0.2.8",
- "winapi-build",
-]
-
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -678,7 +650,7 @@ version = "0.4.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
 ]
 
 [[package]]
@@ -721,33 +693,34 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.6.22"
+version = "0.7.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fce347092656428bc8eaf6201042cb551b8d67855af7374542a92a0fbfcac430"
+checksum = "e50ae3f04d169fcc9bde0b547d1c205219b7157e07ded9c5aff03e0637cb3ed7"
 dependencies = [
- "cfg-if",
- "fuchsia-zircon",
- "fuchsia-zircon-sys",
- "iovec",
- "kernel32-sys",
  "libc",
  "log",
  "miow",
- "net2",
- "slab",
- "winapi 0.2.8",
+ "ntapi",
+ "winapi",
 ]
 
 [[package]]
 name = "miow"
-version = "0.2.1"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
+checksum = "5a33c1b55807fbed163481b5ba66db4b2fa6cde694a5027be10fb724206c5897"
 dependencies = [
- "kernel32-sys",
- "net2",
- "winapi 0.2.8",
- "ws2_32-sys",
+ "socket2",
+ "winapi",
+]
+
+[[package]]
+name = "nanorand"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac1378b66f7c93a1c0f8464a19bf47df8795083842e5090f4b7305973d5a22d0"
+dependencies = [
+ "getrandom 0.2.1",
 ]
 
 [[package]]
@@ -769,14 +742,12 @@ dependencies = [
 ]
 
 [[package]]
-name = "net2"
-version = "0.2.35"
+name = "ntapi"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ebc3ec692ed7c9a255596c67808dee269f64655d8baf7b4f0638e51ba1d6853"
+checksum = "3f6bb902e437b6d86e03cce10a7e2af662292c5dfef23b65899ea3ac9354ad44"
 dependencies = [
- "cfg-if",
- "libc",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -827,7 +798,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d575eff3665419f9b83678ff2815858ad9d11567e082f5ac1814baba4e2bcb4"
 dependencies = [
  "bitflags",
- "cfg-if",
+ "cfg-if 0.1.10",
  "foreign-types",
  "lazy_static",
  "libc",
@@ -912,9 +883,9 @@ dependencies = [
 
 [[package]]
 name = "pin-project-lite"
-version = "0.1.7"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "282adbf10f2698a7a77f8e983a74b2d18176c19a7fd32a45446139ae7b02b715"
+checksum = "439697af366c49a6d0a010c56a0d97685bc140ce0d377b13a2ea2aa42d64a827"
 
 [[package]]
 name = "pin-utils"
@@ -976,7 +947,7 @@ version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
 dependencies = [
- "getrandom",
+ "getrandom 0.1.15",
  "libc",
  "rand_chacha",
  "rand_core",
@@ -999,7 +970,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
 dependencies = [
- "getrandom",
+ "getrandom 0.1.15",
 ]
 
 [[package]]
@@ -1041,17 +1012,17 @@ version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7"
 dependencies = [
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
 name = "reqwest"
-version = "0.10.8"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9eaa17ac5d7b838b7503d118fa16ad88f440498bf9ffe5424e621f93190d61e"
+checksum = "fd281b1030aa675fb90aa994d07187645bb3c8fc756ca766e7c3070b439de9de"
 dependencies = [
- "base64 0.12.3",
- "bytes",
+ "base64 0.13.0",
+ "bytes 1.0.1",
  "encoding_rs",
  "futures-core",
  "futures-util",
@@ -1074,13 +1045,13 @@ dependencies = [
  "serde_json",
  "serde_urlencoded",
  "tokio",
+ "tokio-native-tls",
  "tokio-rustls",
- "tokio-tls",
  "url",
  "wasm-bindgen",
  "wasm-bindgen-futures",
  "web-sys",
- "webpki-roots 0.19.0",
+ "webpki-roots 0.21.0",
  "winreg",
 ]
 
@@ -1096,7 +1067,7 @@ dependencies = [
  "spin",
  "untrusted",
  "web-sys",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -1113,11 +1084,11 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.18.1"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d1126dcf58e93cee7d098dbda643b5f92ed724f1f6a63007c1116eed6700c81"
+checksum = "064fd21ff87c6e87ed4506e68beb42459caa4a0e2eb144932e6776768556980b"
 dependencies = [
- "base64 0.12.3",
+ "base64 0.13.0",
  "log",
  "ring",
  "sct",
@@ -1137,7 +1108,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
 dependencies = [
  "lazy_static",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -1212,14 +1183,14 @@ dependencies = [
 
 [[package]]
 name = "serde_urlencoded"
-version = "0.6.1"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ec5d77e2d4c73717816afac02670d5c4f534ea95ed430442cad02e7a6e32c97"
+checksum = "edfa57a7f8d9c1d260a549e7224100f6c43d43f9103e06dd8b4095a9b2b43ce9"
 dependencies = [
- "dtoa",
+ "form_urlencoded",
  "itoa",
+ "ryu",
  "serde",
- "url",
 ]
 
 [[package]]
@@ -1236,19 +1207,20 @@ dependencies = [
 
 [[package]]
 name = "serenity"
-version = "0.9.1"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fbd2938b8859261d418ba8325a795000e37e9cba1b19d4e978775c5e34dc997"
+checksum = "4dac8367ecfd3380c00dcedf5eb9a47888ae74ae391419b5b1f7735895ed8df4"
 dependencies = [
  "async-trait",
  "async-tungstenite",
  "base64 0.13.0",
  "bitflags",
- "bytes",
+ "bytes 1.0.1",
  "chrono",
  "command_attr",
  "flate2",
  "futures",
+ "percent-encoding",
  "reqwest",
  "serde",
  "serde_json",
@@ -1268,7 +1240,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "170a36ea86c864a3f16dd2687712dd6646f7019f301e57537c7f4dc9f5916770"
 dependencies = [
  "block-buffer",
- "cfg-if",
+ "cfg-if 0.1.10",
  "cpuid-bool",
  "digest",
  "opaque-debug",
@@ -1282,14 +1254,13 @@ checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 
 [[package]]
 name = "socket2"
-version = "0.3.15"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1fa70dc5c8104ec096f4fe7ede7a221d35ae13dcd19ba1ad9a81d2cab9a1c44"
+checksum = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
- "redox_syscall",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -1330,12 +1301,12 @@ version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "libc",
  "rand",
  "redox_syscall",
  "remove_dir_all",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -1384,7 +1355,7 @@ checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
 dependencies = [
  "libc",
  "wasi 0.10.0+wasi-snapshot-preview1",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -1395,27 +1366,25 @@ checksum = "238ce071d267c5710f9d31451efec16c5ee22de34df17cc05e56cbc92e967117"
 
 [[package]]
 name = "tokio"
-version = "0.2.22"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d34ca54d84bf2b5b4d7d31e901a8464f7b60ac145a284fba25ceb801f2ddccd"
+checksum = "0ca04cec6ff2474c638057b65798f60ac183e5e79d3448bb7163d36a39cff6ec"
 dependencies = [
- "bytes",
- "fnv",
- "futures-core",
- "iovec",
- "lazy_static",
+ "autocfg",
+ "bytes 1.0.1",
+ "libc",
  "memchr",
  "mio",
+ "num_cpus",
  "pin-project-lite",
- "slab",
  "tokio-macros",
 ]
 
 [[package]]
 name = "tokio-macros"
-version = "0.2.5"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0c3acc6aa564495a0f2e1d59fab677cd7f81a19994cfc7f3ad0e64301560389"
+checksum = "42517d2975ca3114b22a16192634e8241dc5cc1f130be194645970cc1c371494"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1423,39 +1392,50 @@ dependencies = [
 ]
 
 [[package]]
-name = "tokio-rustls"
-version = "0.14.1"
+name = "tokio-native-tls"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e12831b255bcfa39dc0436b01e19fea231a37db570686c06ee72c423479f889a"
-dependencies = [
- "futures-core",
- "rustls",
- "tokio",
- "webpki",
-]
-
-[[package]]
-name = "tokio-tls"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a70f4fcd7b3b24fb194f837560168208f669ca8cb70d0c4b862944452396343"
+checksum = "f7d995660bd2b7f8c1568414c1126076c13fbb725c40112dc0120b78eb9b717b"
 dependencies = [
  "native-tls",
  "tokio",
 ]
 
 [[package]]
-name = "tokio-util"
-version = "0.3.1"
+name = "tokio-rustls"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be8242891f2b6cbef26a2d7e8605133c2c554cd35b3e4948ea892d6d68436499"
+checksum = "bc6844de72e57df1980054b38be3a9f4702aba4858be64dd700181a8a6d0e1b6"
 dependencies = [
- "bytes",
+ "rustls",
+ "tokio",
+ "webpki",
+]
+
+[[package]]
+name = "tokio-stream"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76066865172052eb8796c686f0b441a93df8b08d40a950b062ffb9a426f00edd"
+dependencies = [
+ "futures-core",
+ "pin-project-lite",
+ "tokio",
+]
+
+[[package]]
+name = "tokio-util"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "12ae4751faa60b9f96dd8344d74592e5a17c0c9a220413dbc6942d14139bbfcc"
+dependencies = [
+ "bytes 1.0.1",
  "futures-core",
  "futures-sink",
  "log",
  "pin-project-lite",
  "tokio",
+ "tokio-stream",
 ]
 
 [[package]]
@@ -1470,8 +1450,7 @@ version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6d79ca061b032d6ce30c660fded31189ca0b9922bf483cd70759f13a2d86786c"
 dependencies = [
- "cfg-if",
- "log",
+ "cfg-if 0.1.10",
  "tracing-attributes",
  "tracing-core",
 ]
@@ -1520,7 +1499,7 @@ checksum = "f0308d80d86700c5878b9ef6321f020f29b1bb9d5ff3cab25e75e23f3a492a23"
 dependencies = [
  "base64 0.12.3",
  "byteorder",
- "bytes",
+ "bytes 0.5.6",
  "http",
  "httparse",
  "input_buffer",
@@ -1584,10 +1563,11 @@ checksum = "a156c684c91ea7d62626509bce3cb4e1d9ed5c4d978f7b4352658f96a4c26b4a"
 
 [[package]]
 name = "url"
-version = "2.1.1"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "829d4a8476c35c9bf0bbce5a3b23f4106f79728039b726d292bb93bc106787cb"
+checksum = "5909f2b0817350449ed73e8bcd81c8c3c8d9a7a5d8acba4b27db277f1868976e"
 dependencies = [
+ "form_urlencoded",
  "idna",
  "matches",
  "percent-encoding",
@@ -1645,7 +1625,7 @@ version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ac64ead5ea5f05873d7c12b545865ca2b8d28adfc50a49b84770a3a97265d42"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "serde",
  "serde_json",
  "wasm-bindgen-macro",
@@ -1672,7 +1652,7 @@ version = "0.4.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b7866cab0aa01de1edf8b5d7936938a7e397ee50ce24119aef3e1eaa3b6171da"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "js-sys",
  "wasm-bindgen",
  "web-sys",
@@ -1727,15 +1707,6 @@ dependencies = [
  "untrusted",
 ]
 
-[[package]]
-name = "webpki-roots"
-version = "0.19.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8eff4b7516a57307f9349c64bf34caa34b940b66fed4b2fb3136cb7386e5739"
-dependencies = [
- "webpki",
-]
-
 [[package]]
 name = "webpki-roots"
 version = "0.20.0"
@@ -1746,10 +1717,13 @@ dependencies = [
 ]
 
 [[package]]
-name = "winapi"
-version = "0.2.8"
+name = "webpki-roots"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
+checksum = "82015b7e0b8bad8185994674a13a93306bea76cf5a16c5a181382fd3a5ec2376"
+dependencies = [
+ "webpki",
+]
 
 [[package]]
 name = "winapi"
@@ -1761,12 +1735,6 @@ 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"
@@ -1779,7 +1747,7 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
 dependencies = [
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -1794,17 +1762,7 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0120db82e8a1e0b9fb3345a539c478767c0048d842860994d96113d5b667bd69"
 dependencies = [
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "ws2_32-sys"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
-dependencies = [
- "winapi 0.2.8",
- "winapi-build",
+ "winapi",
 ]
 
 [[package]]
diff --git a/youmubot-cf/Cargo.toml b/youmubot-cf/Cargo.toml
index 69de86d..6a0b18c 100644
--- a/youmubot-cf/Cargo.toml
+++ b/youmubot-cf/Cargo.toml
@@ -7,15 +7,15 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [dependencies]
 serde = { version = "1", features = ["derive"] }
-tokio = { version = "0.2", features = ["time"] }
-reqwest = "0.10.1"
-serenity = "0.9"
+tokio = { version = "1", features = ["time"] }
+reqwest = "0.11"
+serenity = "0.10"
 Inflector = "0.11"
-codeforces = "0.2.1"
+codeforces = "0.3"
 regex = "1"
 lazy_static = "1"
 chrono = { version = "0.4", features = ["serde"] }
-dashmap = "3.11.4"
+dashmap = "4"
 
 youmubot-prelude = { path = "../youmubot-prelude" }
 youmubot-db = { path = "../youmubot-db" }
diff --git a/youmubot-cf/src/announcer.rs b/youmubot-cf/src/announcer.rs
index 631a75a..c482742 100644
--- a/youmubot-cf/src/announcer.rs
+++ b/youmubot-cf/src/announcer.rs
@@ -96,11 +96,7 @@ async fn update_user(
                             e.content(format!("Rating change for {}!", user_id.mention()))
                                 .embed(|c| {
                                     crate::embed::rating_change_embed(
-                                        &rc,
-                                        &info,
-                                        &contest,
-                                        &user_id.mention(),
-                                        c,
+                                        &rc, &info, &contest, user_id, c,
                                     )
                                 })
                         })
diff --git a/youmubot-cf/src/embed.rs b/youmubot-cf/src/embed.rs
index 2531029..3e6f45b 100644
--- a/youmubot-cf/src/embed.rs
+++ b/youmubot-cf/src/embed.rs
@@ -2,6 +2,7 @@ use codeforces::{Contest, RatingChange, User};
 use inflector::Inflector;
 use serenity::{builder::CreateEmbed, utils::MessageBuilder};
 use std::borrow::Borrow;
+use youmubot_prelude::*;
 
 fn unwrap_or_ref<'a, T: ?Sized, B: Borrow<T>>(opt: &'a Option<B>, default: &'a T) -> &'a T {
     opt.as_ref().map(|v| v.borrow()).unwrap_or(default)
@@ -59,14 +60,14 @@ pub fn rating_change_embed<'a>(
     rating_change: &RatingChange,
     user: &User,
     contest: &Contest,
-    tag: &str,
+    user_id: serenity::model::id::UserId,
     e: &'a mut CreateEmbed,
 ) -> &'a mut CreateEmbed {
     let delta = (rating_change.new_rating as i64) - (rating_change.old_rating as i64);
     let color = if delta < 0 { 0xff0000 } else { 0x00ff00 };
     let message = if delta > 0 {
         MessageBuilder::new()
-            .push(tag)
+            .push(user_id.mention())
             .push(" competed in ")
             .push_bold_safe(&contest.name)
             .push(", gaining ")
@@ -77,7 +78,7 @@ pub fn rating_change_embed<'a>(
             .build()
     } else {
         MessageBuilder::new()
-            .push(tag)
+            .push(user_id.mention())
             .push(" competed in ")
             .push_bold_safe(&contest.name)
             .push(", but lost ")
diff --git a/youmubot-cf/src/lib.rs b/youmubot-cf/src/lib.rs
index e038d8c..f0b276f 100644
--- a/youmubot-cf/src/lib.rs
+++ b/youmubot-cf/src/lib.rs
@@ -33,8 +33,7 @@ pub use hook::InfoHook;
 pub async fn setup(path: &std::path::Path, data: &mut TypeMap, announcers: &mut AnnouncerHandler) {
     CfSavedUsers::insert_into(data, path.join("cf_saved_users.yaml"))
         .expect("Must be able to set up DB");
-    let http = data.get::<HTTPClient>().unwrap();
-    let client = Arc::new(codeforces::Client::new(http.clone()));
+    let client = Arc::new(codeforces::Client::new());
     data.insert::<hook::ContestCache>(hook::ContestCache::new(client.clone()).await.unwrap());
     data.insert::<CFClient>(client);
     announcers.add("codeforces", announcer::Announcer);
diff --git a/youmubot-cf/src/live.rs b/youmubot-cf/src/live.rs
index b2d000f..ea8e8ed 100644
--- a/youmubot-cf/src/live.rs
+++ b/youmubot-cf/src/live.rs
@@ -84,7 +84,7 @@ pub async fn watch_contest(
             break;
         }
         // Sleep for a minute
-        tokio::time::delay_for(std::time::Duration::from_secs(60)).await;
+        tokio::time::sleep(std::time::Duration::from_secs(60)).await;
     }
 
     // Announce the final results
diff --git a/youmubot-core/Cargo.toml b/youmubot-core/Cargo.toml
index 3dc3eab..6034551 100644
--- a/youmubot-core/Cargo.toml
+++ b/youmubot-core/Cargo.toml
@@ -7,13 +7,13 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-serenity = { version = "0.9", features = ["collector"] }
+serenity = { version = "0.10", features = ["collector"] }
 rand = "0.7"
 serde = { version = "1", features = ["derive"] }
 chrono = "0.4"
 static_assertions = "1.1"
 futures-util = "0.3"
-tokio = { version = "0.2", features = ["time"] }
+tokio = { version = "1", features = ["time"] }
 
 youmubot-db = { path = "../youmubot-db" }
 youmubot-prelude = { path = "../youmubot-prelude" }
diff --git a/youmubot-core/src/admin/mod.rs b/youmubot-core/src/admin/mod.rs
index 4270883..a8accac 100644
--- a/youmubot-core/src/admin/mod.rs
+++ b/youmubot-core/src/admin/mod.rs
@@ -53,7 +53,7 @@ async fn clean(ctx: &Context, msg: &Message, mut args: Args) -> CommandResult {
     };
     msg.react(&ctx, '🌋').await?;
     if let Channel::Guild(_) = &channel {
-        tokio::time::delay_for(std::time::Duration::from_secs(2)).await;
+        tokio::time::sleep(std::time::Duration::from_secs(2)).await;
         msg.delete(&ctx).await.ok();
     }
 
diff --git a/youmubot-core/src/admin/soft_ban.rs b/youmubot-core/src/admin/soft_ban.rs
index ce2b510..6350cae 100644
--- a/youmubot-core/src/admin/soft_ban.rs
+++ b/youmubot-core/src/admin/soft_ban.rs
@@ -148,7 +148,7 @@ pub async fn watch_soft_bans(cache_http: Arc<CacheAndHttp>, data: AppData) {
             }
         }
         // Sleep the thread for a minute
-        tokio::time::delay_for(std::time::Duration::from_secs(60)).await
+        tokio::time::sleep(std::time::Duration::from_secs(60)).await
     }
 }
 
diff --git a/youmubot-core/src/community/mod.rs b/youmubot-core/src/community/mod.rs
index 06bfc7a..974017f 100644
--- a/youmubot-core/src/community/mod.rs
+++ b/youmubot-core/src/community/mod.rs
@@ -104,7 +104,7 @@ pub async fn choose(ctx: &Context, m: &Message, mut args: Args) -> CommandResult
                     .push_bold(format!("{}", users.len()))
                     .push(" ")
                     .push(
-                        role.map(|r| r.mention() + "s")
+                        role.map(|r| format!("{}s", r.mention()))
                             .unwrap_or("potential prayers".to_owned()),
                     )
                     .push(", ")
diff --git a/youmubot-core/src/community/votes.rs b/youmubot-core/src/community/votes.rs
index 30c3205..a18154f 100644
--- a/youmubot-core/src/community/votes.rs
+++ b/youmubot-core/src/community/votes.rs
@@ -195,7 +195,7 @@ pub async fn vote(ctx: &Context, msg: &Message, mut args: Args) -> CommandResult
                         .push(
                             votes
                                 .into_iter()
-                                .map(|v| v.mention())
+                                .map(|v| v.mention().to_string())
                                 .collect::<Vec<_>>()
                                 .join(", "),
                         );
diff --git a/youmubot-core/src/fun/images.rs b/youmubot-core/src/fun/images.rs
index 4a28696..f41e3a1 100644
--- a/youmubot-core/src/fun/images.rs
+++ b/youmubot-core/src/fun/images.rs
@@ -3,7 +3,7 @@ use serenity::framework::standard::CommandError as Error;
 use serenity::{
     framework::standard::{
         macros::{check, command},
-        Args, CheckResult, CommandOptions, CommandResult, Reason,
+        Args, CommandOptions, CommandResult, Reason,
     },
     model::channel::{Channel, Message},
 };
@@ -29,15 +29,20 @@ pub async fn image(ctx: &Context, msg: &Message, args: Args) -> CommandResult {
 
 #[check]
 #[name = "nsfw"]
-async fn nsfw_check(ctx: &Context, msg: &Message, _: &mut Args, _: &CommandOptions) -> CheckResult {
+async fn nsfw_check(
+    ctx: &Context,
+    msg: &Message,
+    _: &mut Args,
+    _: &CommandOptions,
+) -> Result<(), Reason> {
     let channel = msg.channel_id.to_channel(&ctx).await.unwrap();
     if !(match channel {
         Channel::Guild(guild_channel) => guild_channel.nsfw,
         _ => true,
     }) {
-        CheckResult::Failure(Reason::User("😣 YOU FREAKING PERVERT!!!".to_owned()))
+        Err(Reason::User("😣 YOU FREAKING PERVERT!!!".to_owned()))
     } else {
-        CheckResult::Success
+        Ok(())
     }
 }
 
diff --git a/youmubot-db/Cargo.toml b/youmubot-db/Cargo.toml
index 709b2b9..0867527 100644
--- a/youmubot-db/Cargo.toml
+++ b/youmubot-db/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-serenity = "0.9"
+serenity = "0.10"
 dotenv = "0.15"
 serde = { version = "1.0", features = ["derive"] }
 chrono = "0.4.9"
diff --git a/youmubot-osu/Cargo.toml b/youmubot-osu/Cargo.toml
index b13bd36..cbb8762 100644
--- a/youmubot-osu/Cargo.toml
+++ b/youmubot-osu/Cargo.toml
@@ -7,15 +7,15 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-serenity = "0.9"
-chrono = "0.4.10"
-reqwest = "0.10.1"
+serenity = "0.10"
+chrono = "0.4"
+reqwest = "0.11"
 serde = { version = "1.0", features = ["derive"] }
 bitflags = "1"
 lazy_static = "1"
 regex = "1"
-oppai-rs = "0.2.0"
-dashmap = "3.11.4"
+oppai-rs = "0.2"
+dashmap = "4"
 
 youmubot-db = { path = "../youmubot-db" }
 youmubot-prelude = { path = "../youmubot-prelude" }
diff --git a/youmubot-prelude/Cargo.toml b/youmubot-prelude/Cargo.toml
index 3873dfe..0ed83c2 100644
--- a/youmubot-prelude/Cargo.toml
+++ b/youmubot-prelude/Cargo.toml
@@ -10,14 +10,14 @@ edition = "2018"
 anyhow = "1.0"
 async-trait = "0.1"
 futures-util = "0.3"
-tokio = { version = "0.2", features = ["time"] }
+tokio = { version = "1", features = ["time"] }
 youmubot-db = { path = "../youmubot-db" }
-reqwest = "0.10"
+reqwest = "0.11"
 chrono = "0.4"
-flume = "0.9"
-dashmap = "3"
+flume = "0.10"
+dashmap = "4"
 
 [dependencies.serenity]
-version = "0.9"
+version = "0.10"
 default-features = true
 features = ["collector"]
diff --git a/youmubot-prelude/src/announcer.rs b/youmubot-prelude/src/announcer.rs
index aed2707..495be4f 100644
--- a/youmubot-prelude/src/announcer.rs
+++ b/youmubot-prelude/src/announcer.rs
@@ -155,8 +155,7 @@ impl AnnouncerHandler {
         self.data.write().await.insert::<Self>(keys.clone());
         loop {
             eprintln!("{}: announcer started scanning", chrono::Utc::now());
-            // let after_timer = after(cooldown);
-            let after = tokio::time::delay_for(cooldown);
+            let after = tokio::time::sleep_until(tokio::time::Instant::now() + cooldown);
             join_all(self.announcers.iter().map(|(key, announcer)| {
                 eprintln!(" - scanning key `{}`", key);
                 Self::announce(self.data.clone(), self.cache_http.clone(), *key, announcer).map(
diff --git a/youmubot-prelude/src/ratelimit.rs b/youmubot-prelude/src/ratelimit.rs
index f9ad47b..f7557dc 100644
--- a/youmubot-prelude/src/ratelimit.rs
+++ b/youmubot-prelude/src/ratelimit.rs
@@ -60,7 +60,7 @@ impl<'a, T> Drop for RatelimitGuard<'a, T> {
         let send = self.send.clone();
         let wait_time = self.wait_time.clone();
         tokio::spawn(async move {
-            tokio::time::delay_for(wait_time).await;
+            tokio::time::sleep(wait_time).await;
             send.send_async(()).await.ok();
         });
     }
diff --git a/youmubot/Cargo.toml b/youmubot/Cargo.toml
index 6a178ad..b8c796d 100644
--- a/youmubot/Cargo.toml
+++ b/youmubot/Cargo.toml
@@ -12,8 +12,8 @@ osu = ["youmubot-osu"]
 codeforces = ["youmubot-cf"]
 
 [dependencies]
-serenity = "0.9"
-tokio = "0.2"
+serenity = "0.10"
+tokio = { version = "1", features = ["rt-multi-thread"] }
 dotenv = "0.15"
 env_logger = "0.7"
 youmubot-db = { path = "../youmubot-db" }
diff --git a/youmubot/src/main.rs b/youmubot/src/main.rs
index baf0927..e4a7d09 100644
--- a/youmubot/src/main.rs
+++ b/youmubot/src/main.rs
@@ -6,7 +6,6 @@ use serenity::{
     model::{
         channel::{Channel, Message},
         gateway,
-        id::{ChannelId, GuildId, UserId},
         permissions::Permissions,
     },
 };
@@ -52,14 +51,14 @@ impl EventHandler for Handler {
 }
 
 /// Returns whether the user has "MANAGE_MESSAGES" permission in the channel.
-async fn is_channel_mod(ctx: &Context, _: Option<GuildId>, ch: ChannelId, u: UserId) -> bool {
-    match ch.to_channel(&ctx).await {
+async fn is_not_channel_mod(ctx: &Context, msg: &Message) -> bool {
+    match msg.channel_id.to_channel(&ctx).await {
         Ok(Channel::Guild(gc)) => gc
-            .permissions_for_user(&ctx, u)
+            .permissions_for_user(&ctx, msg.author.id)
             .await
-            .map(|perms| perms.contains(Permissions::MANAGE_MESSAGES))
-            .unwrap_or(false),
-        _ => false,
+            .map(|perms| !perms.contains(Permissions::MANAGE_MESSAGES))
+            .unwrap_or(true),
+        _ => true,
     }
 }
 
@@ -167,7 +166,7 @@ async fn setup_framework(token: &str) -> StandardFramework {
         .after(after_hook)
         .on_dispatch_error(on_dispatch_error)
         .bucket("voting", |c| {
-            c.check(|ctx, g, ch, u| Box::pin(async move { !is_channel_mod(ctx, g, ch, u).await }))
+            c.check(|ctx, msg| Box::pin(is_not_channel_mod(ctx, msg)))
                 .delay(120 /* 2 minutes */)
                 .time_span(120)
                 .limit(1)
@@ -176,7 +175,7 @@ async fn setup_framework(token: &str) -> StandardFramework {
         .bucket("images", |c| c.time_span(60).limit(2))
         .await
         .bucket("community", |c| {
-            c.check(|ctx, g, ch, u| Box::pin(async move { !is_channel_mod(ctx, g, ch, u).await }))
+            c.check(|ctx, msg| Box::pin(is_not_channel_mod(ctx, msg)))
                 .delay(30)
                 .time_span(30)
                 .limit(1)
@@ -224,9 +223,9 @@ async fn on_dispatch_error(ctx: &Context, msg: &Message, error: DispatchError) {
     msg.reply(
         &ctx,
         &match error {
-            DispatchError::Ratelimited(seconds) => format!(
+            DispatchError::Ratelimited(rl) => format!(
                 "⏳ You are being rate-limited! Try this again in **{}**.",
-                youmubot_prelude::Duration(seconds),
+                youmubot_prelude::Duration(rl.rate_limit),
             ),
             DispatchError::NotEnoughArguments { min, given } => {
                 format!(