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// Test that `--show-output` has an effect and `allow(unused)` can be overridden.
// check-pass
// edition:2018
// compile-flags:--test --test-args=--show-output
// normalize-stdout-test: "tests/rustdoc-ui/doctest" -> "$$DIR"
// normalize-stdout-test "finished in \d+\.\d+s" -> "finished in $$TIME"
/// ```
/// #![warn(unused)]
/// let x = 12;
///
/// fn foo(x: &dyn std::fmt::Display) {}
/// ```
pub fn foo() {}
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