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// Tests that two closures cannot simultaneously have mutable
// access to the variable, whether that mutable access be used
// for direct assignment or for taking mutable ref. Issue #6801.
#![feature(rustc_attrs)]
#[rustc_on_unimplemented(
message="the message"
label="the label" //~ ERROR expected `,`, found `label`
)]
trait T {}
fn main() { }
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