Merge pull request #529 from paritytech/mira/ci-linux-nightly

ci-linux: Bump rust nightly to 2023-03-16

Author: Mira Ressel

dockerfiles/ci-linux/Dockerfile

@@ -4,6 +4,8 @@ ARG REGISTRY_PATH=docker.io/paritytech
 
 FROM ${REGISTRY_PATH}/base-ci-linux:latest
 
+ARG RUST_NIGHTLY="2023-03-16"
+
 # metadata
 LABEL summary="Image for Substrate-based projects." \
 	name="${REGISTRY_PATH}/ci-linux" \
@@ -26,9 +28,9 @@ RUN set -eux && \
 	# install `rust-src` component for ui test
 	rustup component add rust-src rustfmt clippy && \
 	# install specific Rust nightly, default is stable, use minimum components
-	rustup toolchain install nightly-2022-11-16 --profile minimal --component rustfmt clippy && \
-	# "alias" pinned nightly-2022-11-16 toolchain as nightly
-	ln -s /usr/local/rustup/toolchains/nightly-2022-11-16-x86_64-unknown-linux-gnu /usr/local/rustup/toolchains/nightly-x86_64-unknown-linux-gnu && \
+	rustup toolchain install "nightly-${RUST_NIGHTLY}" --profile minimal --component rustfmt clippy && \
+	# "alias" pinned nightly toolchain as nightly
+	ln -s "/usr/local/rustup/toolchains/nightly-${RUST_NIGHTLY}-x86_64-unknown-linux-gnu" /usr/local/rustup/toolchains/nightly-x86_64-unknown-linux-gnu && \
 	# install wasm toolchain
 	rustup target add wasm32-unknown-unknown && \
 	rustup target add wasm32-unknown-unknown --toolchain nightly && \