chore(devctr): update rust toolchain to 1.85.0

This commit updates the rust toolchain in the devctr to 1.85.0.
Changes will take effect on the next devctr release.

Signed-off-by: Riccardo Mancini <mancio@amazon.com>

Author: Manciukic

rust-toolchain.toml

@@ -11,7 +11,7 @@
 # allowlisted using a toolchain that requires it, causing the A/B-test to
 # always fail.
 [toolchain]
-channel = "1.83.0"
+channel = "1.85.0"
 targets = ["x86_64-unknown-linux-musl", "aarch64-unknown-linux-musl"]
 profile = "minimal"
 

tools/devctr/Dockerfile

@@ -4,7 +4,7 @@ FROM public.ecr.aws/lts/ubuntu:24.04
 # The Rust toolchain layer will get updated most frequently, but we could keep the system
 # dependencies layer intact for much longer.
 
-ARG RUST_TOOLCHAIN="1.83.0"
+ARG RUST_TOOLCHAIN="1.85.0"
 ARG TMP_BUILD_DIR=/tmp/build
 ARG DEBIAN_FRONTEND=noninteractive
 ARG PIP_BREAK_SYSTEM_PACKAGES=1