Merge pull request #1331 from charlespierce/pin_rust_version

Pin Rust to 1.63 to maintain compatibility with old CentOS versions

Author: charlespierce

.github/workflows/api-docs.yml

@@ -18,7 +18,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: stable
+          toolchain: 1.63
           override: true
       - name: Build docs
         uses: actions-rs/cargo@v1

.github/workflows/release.yml

@@ -36,7 +36,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: stable
+          toolchain: 1.63
           override: true
       - name: Compile and package Volta
         run: ./ci/build-macos-x86_64.sh volta-macos
@@ -56,7 +56,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: stable
+          toolchain: 1.63
           target: aarch64-apple-darwin
           override: true
       - name: Compile and package Volta
@@ -77,7 +77,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: stable
+          toolchain: 1.63
           override: true
       - name: Add cargo-wix subcommand
         uses: actions-rs/cargo@v1

.github/workflows/test.yml

@@ -27,7 +27,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: stable
+          toolchain: 1.63
           override: true
           components: clippy
       - name: Run tests
@@ -57,7 +57,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: stable
+          toolchain: 1.63
           override: true
       - name: Run tests
         uses: actions-rs/cargo@v1
@@ -86,7 +86,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: stable
+          toolchain: 1.63
           override: true
           components: rustfmt
       - name: Run check

ci/docker/Dockerfile

@@ -12,5 +12,5 @@ RUN wget -O /etc/yum.repos.d/slc6-devtoolset.repo http://linuxsoft.cern.ch/cern/
 RUN yum -y install devtoolset-2-gcc devtoolset-2-binutils
 
 # Install Rust toolchain
-RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain stable
+RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain 1.63
 ENV PATH="/root/.cargo/bin:${PATH}"

rust-toolchain.toml

@@ -0,0 +1,3 @@
+[toolchain]
+channel = "1.63"
+profile = "minimal"