use debian instead of alpine

.cargo/config.toml

@@ -1,2 +1,5 @@
 [alias]
 xtask = "run --package xtask --"
+
+[build]
+rustflags = "-Ctarget-cpu=core-avx2"

Dockerfile

@@ -1,12 +1,11 @@
-FROM rust:1.80-alpine3.20 as build
+FROM rust:1.81-bookworm as build
 
 COPY battlesnake/ /usr/app
 WORKDIR /usr/app
 
-RUN apk add --no-cache musl-dev=1.2.5-r0
 RUN cargo install --path .
 
-FROM alpine:3.20
+FROM debian:bookworm
 COPY --from=build /usr/local/cargo/bin/battlesnake /bin/battlesnake
 
 CMD ["battlesnake"]

battlesnake/.cargo/config.toml

@@ -0,0 +1,2 @@
+[build]
+rustflags = "-Ctarget-cpu=core-avx2"

xtask/src/main.rs

@@ -159,13 +159,13 @@ fn regression() -> Result<(), DynError> {
     let (won, games) = res?;
     println!(
         "\nThe local snake has won {won}/{games} games ({}%)",
-        won * 100 / games
+        (won + games / 200) * 100 / games
     );
     Ok(())
 }
 
 fn try_regression() -> Result<(usize, usize), DynError> {
-    const GAMES: usize = 100;
+    const GAMES: usize = 1000;
     // limit the parallelism
     rayon::ThreadPoolBuilder::new()
         .num_threads(std::thread::available_parallelism()?.get() / 3)
@@ -184,6 +184,8 @@ fn try_regression() -> Result<(usize, usize), DynError> {
                     "11",
                     "-H",
                     "11",
+                    "--timeout",
+                    "50",
                     "--name",
                     "local",
                     "--url",
@@ -246,6 +248,10 @@ fn run_production(port: u16) -> Result<Child, DynError> {
     let mut snake = Command::new("docker")
         .args([
             "run",
+            "--name",
+            "battlesnake-regression",
+            "--init",
+            "--replace",
             "--env",
             "RUST_LOG=error",
             "--env",