rust-lang
diff --git a/‎src/tools/tidy/src/allowed_run_make_makefiles.txt
-1 b/‎src/tools/tidy/src/allowed_run_make_makefiles.txt
-1
diff --git a/‎tests/run-make/issue-18943/Makefile
-7 b/‎tests/run-make/issue-18943/Makefile
-7
diff --git a/‎tests/run-make/issue-18943/foo.rs renamed to ‎tests/run-make/lib-trait-for-trait-no-ice/foo.rs b/‎tests/run-make/issue-18943/foo.rs renamed to ‎tests/run-make/lib-trait-for-trait-no-ice/foo.rs
diff --git a/‎tests/run-make/lib-trait-for-trait-no-ice/rmake.rs
+13 b/‎tests/run-make/lib-trait-for-trait-no-ice/rmake.rs
+13
@@ -81,7 +81,6 @@ run-make/issue-10971-temps-dir/Makefile
 run-make/issue-109934-lto-debuginfo/Makefile
 run-make/issue-14698/Makefile
 run-make/issue-15460/Makefile
-run-make/issue-18943/Makefile
 run-make/issue-20626/Makefile
 run-make/issue-22131/Makefile
 run-make/issue-25581/Makefile
 
@@ -0,0 +1,13 @@
+// Inside a library, implementing a trait for another trait
+// with a lifetime used to cause an internal compiler error (ICE).
+// This test checks that this bug does not make a resurgence -
+// first by ensuring successful compilation, then verifying that
+// the lib crate-type flag was actually followed.
+// See https://github.com/rust-lang/rust/issues/18943
+
+use run_make_support::{count_rlibs, rustc};
+
+fn main() {
+    rustc().input("foo.rs").crate_type("lib").run();
+    assert_eq!(count_rlibs("foo"), 1);
+}