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error[E0005]: refutable pattern in local binding
--> $DIR/non-exhaustive-destructure.rs:2:5
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LL | None = Some(3);
| ^^^^ pattern `Some(_)` not covered
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= note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant
= note: for more information, visit https://doc.rust-lang.org/book/ch19-02-refutability.html
= note: the matched value is of type `Option<i32>`
help: you might want to use `if let` to ignore the variant that isn't matched
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LL | if None = Some(3) { todo!() };
| ++ +++++++++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0005`.
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