deb: test building packages from sid

src/deb/mod.rs

@@ -265,6 +265,7 @@ mod tests {
         test_build_end_to_end("hello", "noble", None, None, false).await;
     }
 
+    /// This ensures that we can cross-build packages
     #[tokio::test]
     #[test_log::test]
     #[cfg(target_arch = "x86_64")]
@@ -273,6 +274,16 @@ mod tests {
         test_build_end_to_end("hello", "noble", None, Some("riscv64"), true).await;
     }
 
+    /// This ensures that we can build packages from sid, even on older
+    /// releases. It can sometimes be difficult with mmdebstrap issues
+    /// for example.
+    #[tokio::test]
+    #[test_log::test]
+    #[serial]
+    async fn test_deb_hello_debian_sid_end_to_end() {
+        test_build_end_to_end("hello", "sid", None, None, false).await;
+    }
+
     /// This is a specific test case for the latest gcc package on Debian
     /// The GCC package is complex and hard to build, with specific stages
     /// and system-bound scripts. Building it requires specific things that