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// This is a regression test for a problem encountered around upvar
// inference and trait caching: in particular, we were entering a
// temporary closure kind during inference, and then caching results
// based on that temporary kind, which led to no error being reported
// in this particular test.
fn main() {
let inc = || {};
inc();
fn apply<F>(f: F) where F: Fn() {
f()
}
let mut farewell = "goodbye".to_owned();
let diary = || { //~ ERROR E0525
farewell.push_str("!!!");
println!("Then I screamed {}.", farewell);
};
apply(diary);
}
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