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//@ compile-flags: -Z unstable-options
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#![feature(rustc_attrs)]
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#[rustc_lint_diagnostics]
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//~^ ERROR attribute should be applied to a function
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struct Foo;
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impl Foo {
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#[rustc_lint_diagnostics(a)]
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//~^ ERROR malformed `rustc_lint_diagnostics`
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fn bar() {}
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}
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fn main() {}
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