ci: download gen_init_cpio with authentication

API rate limiting seems broken - let's hope this gets around it.

.github/workflows/ci.yml

@@ -299,7 +299,10 @@ jobs:
         run: cargo xtask integration-test local
 
       - name: Run virtualized integration tests
-        run: find test/.tmp -name 'vmlinuz-*' | xargs -t cargo xtask integration-test vm
+        run: |
+          set -euxo pipefail
+          find test/.tmp -name 'vmlinuz-*' -print0 | xargs -t -0 \
+            cargo xtask integration-test vm --github-api-token ${{ secrets.GITHUB_TOKEN }}
 
   # Provides a single status check for the entire build workflow.
   # This is used for merge automation, like Mergify, since GH actions

xtask/src/run.rs

@@ -24,6 +24,10 @@ enum Environment {
     },
     /// Runs the integration tests in a VM.
     VM {
+        /// The Github API token to use if network requests to Github are made.
+        #[clap(long)]
+        github_api_token: Option<String>,
+
         /// The kernel images to use.
         ///
         /// You can download some images with:
@@ -167,7 +171,10 @@ pub fn run(opts: Options) -> Result<()> {
                 Err(anyhow!("failures:\n{}", failures))
             }
         }
-        Environment::VM { kernel_image } => {
+        Environment::VM {
+            github_api_token,
+            kernel_image,
+        } => {
             // The user has asked us to run the tests on a VM. This is involved; strap in.
             //
             // We need tools to build the initramfs; we use gen_init_cpio from the Linux repository,
@@ -193,6 +200,10 @@ pub fn run(opts: Options) -> Result<()> {
                 .context("failed to check existence of gen_init_cpio")?
             {
                 let mut curl = Command::new("curl");
+                if let Some(github_api_token) = github_api_token {
+                    curl.arg("--header")
+                        .arg(format!("authorization: Bearer {github_api_token}"));
+                }
                 curl.args([
                     "-sfSL",
                     "https://raw.githubusercontent.com/torvalds/linux/master/usr/gen_init_cpio.c",