perf(worker-rust): Add dev env for faster local build times (#5059)

* chore(worker-rust): Remove deprecated `--local` parameter

* perf(worker-rust): Add `dev` environment for faster build times

* perf(worker-rust): Optimize for size in release builds

templates/experimental/worker-rust/Cargo.toml

@@ -10,6 +10,7 @@ crate-type = ["cdylib"]
 worker = "0.0.18"
 
 [profile.release]
+opt-level = "s" # optimize for size in release builds
 lto = true
 strip = true
 codegen-units = 1

templates/experimental/worker-rust/package.json

@@ -4,7 +4,7 @@
 	"private": true,
 	"scripts": {
 		"deploy": "wrangler deploy",
-		"dev": "wrangler dev --local"
+		"dev": "wrangler dev --env dev"
 	},
 	"devDependencies": {
 		"wrangler": "^3.1.2"

templates/experimental/worker-rust/wrangler.toml

@@ -4,3 +4,6 @@ compatibility_date = "2023-12-01"
 
 [build]
 command = "cargo install -q worker-build && worker-build --release"
+
+[env.dev]
+build = { command = "cargo install -q worker-build && worker-build --dev" }