From 6551c56e2733015aeb3ee9619db75370c88d8ddb Mon Sep 17 00:00:00 2001
From: Agent Relay <agent@agent-relay.com>
Date: Tue, 20 Jan 2026 11:07:22 +0000
Subject: [PATCH] Fix: Update Docker Rust to 1.83 for Cargo.lock v4 support

---
 deploy/workspace/Dockerfile.base | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/deploy/workspace/Dockerfile.base b/deploy/workspace/Dockerfile.base
index df4531ae2..d57538689 100644
--- a/deploy/workspace/Dockerfile.base
+++ b/deploy/workspace/Dockerfile.base
@@ -4,8 +4,10 @@
 
 # ============================================================================
 # Stage 1: Build Rust relay-pty binary
+# Cargo.lock v4 requires Cargo >=1.78; keep Rust >=1.83.
 # ============================================================================
-FROM rust:1.83-slim AS rust-builder
+ARG RUST_VERSION=1.83
+FROM rust:${RUST_VERSION}-slim AS rust-builder
 
 WORKDIR /build