message: [coverage] prevent stack overflow in xtest's run of language/ir-testsuite's tests
  Closes:
diff: @@ -67,6 +67,8 @@ pub fn run(mut args: Args, xctx: XContext) -> Result<()> {
  ("RUSTC_BOOTSTRAP", "1"),
  // Recommend setting for grcov, avoids using the cargo cache.
  ("CARGO_INCREMENTAL", "0"),
  + // language/ir-testsuite's tests will stack overflow without this setting.
  + ("RUST_MIN_STACK", "8388608"),
  // Recommend flags for use with grcov, with these flags removed: -Copt-level=0, -Clink-dead-code.
  // for more info see: https://github.com/mozilla/grcov#example-how-to-generate-gcda-fiels-for-a-rust-project
  (
  