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error[E0277]: the trait bound `(): From<!>` is not satisfied
--> $DIR/reservation-impl-ice.rs:9:18
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LL | impls_from::<()>();
| ^^ the trait `From<!>` is not implemented for `()`
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= help: the following other types implement trait `From<T>`:
`(T, T)` implements `From<[T; 2]>`
`(T, T, T)` implements `From<[T; 3]>`
`(T, T, T, T)` implements `From<[T; 4]>`
`(T, T, T, T, T)` implements `From<[T; 5]>`
`(T, T, T, T, T, T)` implements `From<[T; 6]>`
`(T, T, T, T, T, T, T)` implements `From<[T; 7]>`
`(T, T, T, T, T, T, T, T)` implements `From<[T; 8]>`
`(T, T, T, T, T, T, T, T, T)` implements `From<[T; 9]>`
and 4 others
note: required by a bound in `impls_from`
--> $DIR/reservation-impl-ice.rs:4:24
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LL | const fn impls_from<T: ~const From<!>>() {}
| ^^^^^^^^^^^^^^ required by this bound in `impls_from`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.
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