1 error[E0277]: the trait bound `E: From<()>` is not satisfied
2 --> $DIR/never-value-fallback-issue-66757.rs:28:26
4 LL | <E as From<_>>::from(never);
5 | -------------------- ^^^^^ the trait `From<()>` is not implemented for `E`
7 | required by a bound introduced by this call
9 = help: the trait `From<!>` is implemented for `E`
11 error: aborting due to previous error
13 For more information about this error, try `rustc --explain E0277`.