diff --git a/Cargo.lock b/Cargo.lock
index 995cc3e..3847f74 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -20,6 +20,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "anyhow"
+version = "1.0.65"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98161a4e3e2184da77bb14f02184cdd111e83bbbcc9979dfee3c44b9a85f5602"
+
 [[package]]
 name = "arrayvec"
 version = "0.7.2"
@@ -108,12 +114,6 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
-[[package]]
-name = "cfg_aliases"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd16c4719339c4530435d38e511904438d07cce7950afa3718a84ac36c10e89e"
-
 [[package]]
 name = "clang-sys"
 version = "1.4.0"
@@ -209,15 +209,6 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
 
-[[package]]
-name = "instant"
-version = "0.1.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
-dependencies = [
- "cfg-if",
-]
-
 [[package]]
 name = "itoa"
 version = "1.0.3"
@@ -238,9 +229,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "libc"
-version = "0.2.133"
+version = "0.2.135"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0f80d65747a3e43d1596c7c5492d95d5edddaabd45a7fcdb02b95f644164966"
+checksum = "68783febc7782c6c5cb401fbda4de5a9898be1762314da0bb2c10ced61f18b0c"
 
 [[package]]
 name = "libloading"
@@ -262,16 +253,6 @@ dependencies = [
  "cmake",
 ]
 
-[[package]]
-name = "lock_api"
-version = "0.4.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "435011366fe56583b16cf956f9df0095b405b82d76425bc8981c0e22e60ec4df"
-dependencies = [
- "autocfg",
- "scopeguard",
-]
-
 [[package]]
 name = "log"
 version = "0.4.17"
@@ -324,8 +305,8 @@ dependencies = [
 [[package]]
 name = "nix"
 version = "0.25.0"
+source = "git+https://github.com/Lochnair/nix?branch=add-icmp_proto#19e59985cdca5ded0eac9ad30bcc8ff39219c097"
 dependencies = [
- "autocfg",
  "bitflags",
  "cfg-if",
  "libc",
@@ -352,31 +333,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "parking_lot"
-version = "0.11.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d17b78036a60663b797adeaee46f5c9dfebb86948d1255007a1d6be0271ff99"
-dependencies = [
- "instant",
- "lock_api",
- "parking_lot_core",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.8.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d76e8e1493bcac0d2766c42737f34458f1c8c50c0d23bcb24ea953affb273216"
-dependencies = [
- "cfg-if",
- "instant",
- "libc",
- "redox_syscall",
- "smallvec",
- "winapi",
-]
-
 [[package]]
 name = "peeking_take_while"
 version = "0.1.2"
@@ -443,15 +399,6 @@ dependencies = [
  "getrandom",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.2.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "regex"
 version = "1.6.0"
@@ -486,12 +433,6 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
-[[package]]
-name = "scopeguard"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
-
 [[package]]
 name = "serde"
 version = "1.0.145"
@@ -518,16 +459,11 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "43b2853a4d09f215c24cc5489c992ce46052d359b5109343cbafbf26bc62f8a3"
 
-[[package]]
-name = "smallvec"
-version = "1.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fd0db749597d91ff862fd1d55ea87f7855a744a8425a64695b6fca237d1dad1"
-
 [[package]]
 name = "sqm-autorate-rust"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
  "bincode",
  "byteorder",
  "etherparse",
@@ -537,38 +473,10 @@ dependencies = [
  "rand",
  "rust-uci",
  "serde",
- "static_init",
+ "thiserror",
  "time",
 ]
 
-[[package]]
-name = "static_init"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a2a1c578e98c1c16fc3b8ec1328f7659a500737d7a0c6d625e73e830ff9c1f6"
-dependencies = [
- "bitflags",
- "cfg_aliases",
- "libc",
- "parking_lot",
- "parking_lot_core",
- "static_init_macro",
- "winapi",
-]
-
-[[package]]
-name = "static_init_macro"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70a2595fc3aa78f2d0e45dd425b22282dd863273761cc77780914b2cf3003acf"
-dependencies = [
- "cfg_aliases",
- "memchr",
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "strsim"
 version = "0.8.0"
@@ -605,10 +513,30 @@ dependencies = [
 ]
 
 [[package]]
-name = "time"
-version = "0.3.14"
+name = "thiserror"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c3f9a28b618c3a6b9251b6908e9c99e04b9e5c02e6581ccbb67d59c34ef7f9b"
+checksum = "10deb33631e3c9018b9baf9dcbbc4f737320d2b576bac10f6aefa048fa407e3e"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.37"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "982d17546b47146b28f7c22e3d08465f6b8903d0ea13c1660d9d84a6e7adcdbb"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "time"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d634a985c4d4238ec39cacaed2e7ae552fbd3c476b552c1deac3021b7d7eaf0c"
 dependencies = [
  "itoa",
  "libc",
diff --git a/Cargo.toml b/Cargo.toml
index ec99865..97f782f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,21 +5,28 @@ edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
+[profile.dev]
+codegen-units = 1
+lto = true
+opt-level = 's'
+
 [profile.release]
 codegen-units = 1
 lto = true
 opt-level = 'z'
+panic = "abort"
 strip = "symbols"
 
 
 [dependencies]
+anyhow = "1.0.65"
 bincode = "1.3.3"
 byteorder = "1.4.3"
 etherparse = "0.12.0"
 neli = "0.6.2"
 rand = "0.8.5"
 rust-uci = { version = "0.1.5", optional = true }
-static_init = "1.0.3"
+thiserror = "1.0.37"
 
 [dependencies.log]
 features = ["std"]
@@ -31,14 +38,14 @@ version = "0.25.0"
 
 [dependencies.serde]
 features = ["derive"]
-version = "1.0.144"
+version = "1.0.145"
 
 [dependencies.time]
 features = ["formatting", "macros"]
-version = "0.3.14"
+version = "0.3.15"
 
 [features]
 uci = ["dep:rust-uci"]
 
 [patch.crates-io]
-nix = { path = "../nix" }
+nix = { git = "https://github.com/Lochnair/nix", branch = "add-icmp_proto" }