Bootstrap Rust in release jobs.

.gitea/workflows/release.yml

@@ -21,7 +21,11 @@ jobs:
           fetch-depth: 0
 
       - name: Install the release Rust toolchain
-        run: rustup toolchain install ${RUST_TOOLCHAIN} --profile minimal
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: ${{ env.RUST_TOOLCHAIN }}
+          cache: false
+          rustflags: ""
 
       - name: Test release tooling
         run: cargo +${RUST_TOOLCHAIN} test --locked --package bds-release
@@ -101,7 +105,12 @@ jobs:
         run: sh .gitea/scripts/install-linux-build-dependencies.sh arm64
 
       - name: Install the release Rust target
-        run: rustup toolchain install ${RUST_TOOLCHAIN} --profile minimal --target aarch64-unknown-linux-gnu
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: ${{ env.RUST_TOOLCHAIN }}
+          target: aarch64-unknown-linux-gnu
+          cache: false
+          rustflags: ""
 
       - name: Build, package, and upload Linux arm64 release
         env:
@@ -138,7 +147,12 @@ jobs:
         run: sh .gitea/scripts/install-linux-build-dependencies.sh x64
 
       - name: Install the release Rust target
-        run: rustup toolchain install ${RUST_TOOLCHAIN} --profile minimal --target x86_64-unknown-linux-gnu
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: ${{ env.RUST_TOOLCHAIN }}
+          target: x86_64-unknown-linux-gnu
+          cache: false
+          rustflags: ""
 
       - name: Build, package, and upload Linux x64 release
         env:
@@ -208,7 +222,11 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install the release Rust toolchain
-        run: rustup toolchain install ${RUST_TOOLCHAIN} --profile minimal
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: ${{ env.RUST_TOOLCHAIN }}
+          cache: false
+          rustflags: ""
 
       - name: Publish complete release
         env:

crates/bds-ui/tests/packaging_assets.rs

@@ -143,6 +143,13 @@ fn tagged_releases_are_built_and_packaged_with_rust_tools() {
             "release workflow must not use host tool {forbidden}"
         );
     }
+    assert_eq!(
+        workflow
+            .matches("actions-rust-lang/setup-rust-toolchain@v1")
+            .count(),
+        4,
+        "every release job using the Ubuntu runner image must bootstrap Rust"
+    );
 
     let linux_dependencies =
         fs::read_to_string(workspace.join(".gitea/scripts/install-linux-build-dependencies.sh"))