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//@ compile-flags: -Znext-solver
#![feature(const_from, never_type, const_trait_impl)]
const fn impls_from<T: ~const From<!>>() {}
const fn foo() {
// This previously ICE'd when encountering the reservation impl
// from the standard library.
impls_from::<()>();
//~^ ERROR the trait bound `(): From<!>` is not satisfied
}
fn main() {}
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