diff --git a/src/tools/tidy/src/allowed_run_make_makefiles.txt b/src/tools/tidy/src/allowed_run_make_makefiles.txt
index c231de128aac0..1b7f9d1f07ea1 100644
--- a/src/tools/tidy/src/allowed_run_make_makefiles.txt
+++ b/src/tools/tidy/src/allowed_run_make_makefiles.txt
@@ -106,7 +106,6 @@ run-make/mingw-export-call-convention/Makefile
 run-make/mismatching-target-triples/Makefile
 run-make/missing-crate-dependency/Makefile
 run-make/mixing-libs/Makefile
-run-make/msvc-opt-minsize/Makefile
 run-make/native-link-modifier-bundle/Makefile
 run-make/native-link-modifier-whole-archive/Makefile
 run-make/no-alloc-shim/Makefile
@@ -181,7 +180,6 @@ run-make/target-cpu-native/Makefile
 run-make/target-specs/Makefile
 run-make/target-without-atomic-cas/Makefile
 run-make/test-benches/Makefile
-run-make/test-harness/Makefile
 run-make/thumb-none-cortex-m/Makefile
 run-make/thumb-none-qemu/Makefile
 run-make/track-path-dep-info/Makefile
diff --git a/tests/run-make/test-harness/Makefile b/tests/run-make/test-harness/Makefile
deleted file mode 100644
index ee8c9294f91ab..0000000000000
--- a/tests/run-make/test-harness/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-# ignore-cross-compile
-include ../tools.mk
-
-all:
-	# check that #[cfg_attr(..., ignore)] does the right thing.
-	$(RUSTC) --test test-ignore-cfg.rs --cfg ignorecfg
-	$(call RUN,test-ignore-cfg) | $(CGREP) 'shouldnotignore ... ok' 'shouldignore ... ignored'
-	$(call RUN,test-ignore-cfg --quiet) | $(CGREP) -e "^i\.$$"
-	$(call RUN,test-ignore-cfg --quiet) | $(CGREP) -v 'should'
diff --git a/tests/run-make/test-harness/rmake.rs b/tests/run-make/test-harness/rmake.rs
new file mode 100644
index 0000000000000..1d211d2f6eb10
--- /dev/null
+++ b/tests/run-make/test-harness/rmake.rs
@@ -0,0 +1,21 @@
+// The way test suites run can be modified using configuration flags,
+// ignoring certain tests while running others. This test contains two
+// functions, one which must run and the other which must not. The standard
+// output is checked to verify that the ignore configuration is doing its job,
+// and that output is successfully minimized with the --quiet flag.
+// See https://github.com/rust-lang/rust/commit/f7ebe23ae185991b0fee05b32fbb3e29b89a41bf
+
+//@ ignore-cross-compile
+// Reason: the compiled binary is executed
+
+use run_make_support::{run, run_with_args, rustc};
+
+fn main() {
+    rustc().arg("--test").input("test-ignore-cfg.rs").cfg("ignorecfg").run();
+    // check that #[cfg_attr(..., ignore)] does the right thing.
+    run("test-ignore-cfg")
+        .assert_stdout_contains("shouldnotignore ... ok")
+        .assert_stdout_contains("shouldignore ... ignored");
+    run_with_args("test-ignore-cfg", &["--quiet"]).assert_stdout_contains("i.");
+    run_with_args("test-ignore-cfg", &["--quiet"]).assert_stdout_not_contains("should");
+}