Rollup merge of rust-lang#141640 - Fabian-Gruenbichler:mr/test-version-check-rpath-false, r=jieyouxu

test: convert version_check ui test to run-make

else it breaks with `rpath=false`.

Fixes: rust-lang#141579

Author: matthiaskrgr

tests/run-make/version-check/rmake.rs

@@ -0,0 +1,13 @@
+use run_make_support::bare_rustc;
+
+fn main() {
+    let signalled_version = "Ceci n'est pas une rustc";
+    let rustc_out = bare_rustc()
+        .env("RUSTC_OVERRIDE_VERSION_STRING", signalled_version)
+        .arg("--version")
+        .run()
+        .stdout_utf8();
+
+    let version = rustc_out.strip_prefix("rustc ").unwrap().trim_end();
+    assert_eq!(version, signalled_version);
+}