rust/tests/ui/proc-macro/issue-37788.rs

//@ proc-macro: test-macros.rs

#[macro_use]
extern crate test_macros;

fn main() {
    // Test that constructing the `visible_parent_map` (in `cstore_impl.rs`) does not ICE.
    std::cell::Cell::new(0) //~ ERROR mismatched types
}