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error[E0277]: the trait bound `(): Foo` is not satisfied
--> $DIR/supress_suggestions_in_help.rs:22:11
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LL | check(());
| ----- ^^ the trait `Foo` is not implemented for `()`
| |
| required by a bound introduced by this call
|
= help: the trait `Foo` is implemented for `i32`
note: required by a bound in `check`
--> $DIR/supress_suggestions_in_help.rs:19:18
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LL | fn check(a: impl Foo) {}
| ^^^ required by this bound in `check`
help: use a unary tuple instead
|
LL | check(((),));
| + ++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.
|
