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// edition:2018
// Regression test for #95307.
// The ICE occurred on all the editions, specifying edition:2018 to reduce diagnostics.
pub trait C {
async fn new() -> [u8; _];
//~^ ERROR: functions in traits cannot be declared `async`
//~| ERROR: using `_` for array lengths is unstable
//~| ERROR: in expressions, `_` can only be used on the left-hand side of an assignment
}
fn main() {}
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