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error: to use a constant of type `Foo` in a pattern, `Foo` must be annotated with `#[derive(PartialEq, Eq)]`
--> $DIR/match-forbidden-without-eq.rs:11:9
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LL | FOO => { }
| ^^^
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= note: the traits must be derived, manual `impl`s are not sufficient
= note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
warning: floating-point types cannot be used in patterns
--> $DIR/match-forbidden-without-eq.rs:18:9
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LL | f32::INFINITY => { }
| ^^^^^^^^^^^^^
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= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
= note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
error: aborting due to previous error; 1 warning emitted
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