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// note-pattern: first defined in crate `std`.
// Test for issue #31788 and E0152
#![feature(lang_items)]
use std::panic::PanicInfo;
#[lang = "panic_impl"]
fn panic_impl(info: &PanicInfo) -> ! {
//~^ ERROR: found duplicate lang item `panic_impl`
loop {}
}
fn main() {}
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