X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=tests%2Fintegration.rs;h=c64425fa01a42a36b8351e934ae81523d75b7129;hb=f5bbd1b5299da31532d00abb0502feb5b60f2606;hp=4f373e034bc204d650f367ea90b111887b67cad3;hpb=c1a138cdd923a82866c590c78c9a338844f1405d;p=rust.git

diff --git a/tests/integration.rs b/tests/integration.rs
index 4f373e034bc..c64425fa01a 100644
--- a/tests/integration.rs
+++ b/tests/integration.rs
@@ -1,4 +1,6 @@
 #![cfg(feature = "integration")]
+#![cfg_attr(feature = "deny-warnings", deny(warnings))]
+#![warn(rust_2018_idioms, unused_lifetimes)]
 
 use std::env;
 use std::ffi::OsStr;
@@ -64,11 +66,19 @@ fn integration_test() {
     } else if stderr.contains("query stack during panic") {
         panic!("query stack during panic in the output");
     } else if stderr.contains("E0463") {
+        // Encountering E0463 (can't find crate for `x`) did _not_ cause the build to fail in the
+        // past. Even though it should have. That's why we explicitly panic here.
+        // See PR #3552 and issue #3523 for more background.
         panic!("error: E0463");
     } else if stderr.contains("E0514") {
         panic!("incompatible crate versions");
     } else if stderr.contains("failed to run `rustc` to learn about target-specific information") {
         panic!("couldn't find librustc_driver, consider setting `LD_LIBRARY_PATH`");
+    } else {
+        assert!(
+            !stderr.contains("toolchain") || !stderr.contains("is not installed"),
+            "missing required toolchain"
+        );
     }
 
     match output.status.code() {