Fix dockerfile

docker/Dockerfile

@@ -16,10 +16,9 @@ ARG SCCACHE_SERVER_PORT=4227
 FROM base-$TARGETARCH AS builder
 ARG SCCACHE_SERVER_PORT
 ARG TARGETARCH
-# https://github.com/mozilla/sccache/blob/main/docs/GHA.md
-ARG ACTIONS_CACHE_URL=''
-ARG ACTIONS_RUNTIME_TOKEN=''
-ARG SCCACHE_GHA_ENABLED=''
+
+ENV RUSTC_WRAPPER=/usr/bin/sccache
+ENV SCCACHE_DIR=/var/cache/sccache
 # Overrides the behaviour of the release profile re including debug symbols, which in our repo is not to include them.
 # Should be set to 'false' or 'true'. See https://doc.rust-lang.org/cargo/reference/environment-variables.html
 ARG CARGO_PROFILE_RELEASE_DEBUG=false