diff --git a/test/integration-test/build.rs b/test/integration-test/build.rs
index 1aee5fea..b7c44eb8 100644
--- a/test/integration-test/build.rs
+++ b/test/integration-test/build.rs
@@ -243,7 +243,9 @@ fn main() {
                     }
                 }
                 Message::CompilerMessage(CompilerMessage { message, .. }) => {
-                    println!("cargo:warning={message}");
+                    for line in message.rendered.unwrap_or_default().split('\n') {
+                        println!("cargo:warning={line}");
+                    }
                 }
                 Message::TextLine(line) => {
                     println!("cargo:warning={line}");
diff --git a/xtask/src/run.rs b/xtask/src/run.rs
index 639f45e5..8bba7a53 100644
--- a/xtask/src/run.rs
+++ b/xtask/src/run.rs
@@ -86,7 +86,9 @@ where
                 }
             }
             Message::CompilerMessage(CompilerMessage { message, .. }) => {
-                println!("{message}");
+                for line in message.rendered.unwrap_or_default().split('\n') {
+                    println!("cargo:warning={line}");
+                }
             }
             Message::TextLine(line) => {
                 println!("{line}");