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error: this function has an empty `#[must_use]` attribute, but returns a type already marked as `#[must_use]`
--> $DIR/double_must_use.rs:5:1
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LL | pub fn must_use_result() -> Result<(), ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::double-must-use` implied by `-D warnings`
= help: either add some descriptive text or remove the attribute
error: this function has an empty `#[must_use]` attribute, but returns a type already marked as `#[must_use]`
--> $DIR/double_must_use.rs:10:1
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LL | pub fn must_use_tuple() -> (Result<(), ()>, u8) {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: either add some descriptive text or remove the attribute
error: this function has an empty `#[must_use]` attribute, but returns a type already marked as `#[must_use]`
--> $DIR/double_must_use.rs:15:1
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LL | pub fn must_use_array() -> [Result<(), ()>; 1] {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: either add some descriptive text or remove the attribute
error: aborting due to 3 previous errors
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