src/test/compile-fail/weak-lang-item.rs

// aux-build:weak-lang-items.rs
// error-pattern: `#[panic_handler]` function required, but not found
// error-pattern: language item required, but not found: `eh_personality`
// ignore-emscripten compiled with panic=abort, personality not required

#![no_std]

extern crate core;
extern crate weak_lang_items;

fn main() {}