v0.34.0_4

docs/PROXY_1KB_COUNTERS_DEV_0.34.0.md

@@ -130,3 +130,18 @@ backend connects and all log/traffic drop counters. Test concurrent global
 purges and per-vhost purges during traffic and verify the stats reset behavior
 and cache HIT/MISS/BYPASS/reason distribution. Run long soaks and both cold/HOT
 cache tests. The 100k RPS / nginx 80% goal is still **OPEN**.
+
+## Build fix after first compiler feedback (OPT2-FIX1)
+
+The first user build of OPT2 failed with six Rust `E0753` diagnostics because
+`src/cache/stats.rs` starts with `//!` *inner module* documentation but is
+injected via `include!("stats.rs")` after other items in `src/cache/mod.rs`.
+The six documentation lines are now ordinary `//` comments; there is no
+behavior change. Three unnecessary `mut` bindings in
+`src/cache/dashboard.rs` were also removed (warnings only). Version remains
+0.34.0; no performance or feature semantics have changed in this fix.
+
+The compiler-enabled host should rerun `./dev.sh check`,
+`CARGO_INCREMENTAL=0 ./dev.sh test` and an optimized release build, then
+performance benchmarks. This editing environment still lacks `cargo` and
+`rustc`, so the fix has been statically checked, **not compiled** here.