File: no_share-struct.rs

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rustc 1.89.0%2Bdfsg1-1
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#![feature(negative_impls)]

use std::marker::Sync;

struct Foo { a: isize }
impl !Sync for Foo {}

fn bar<T: Sync>(_: T) {}

fn main() {
    let x = Foo { a: 5 };
    bar(x);
    //~^ ERROR `Foo` cannot be shared between threads safely [E0277]
}