1 error[E0308]: mismatched types
2 --> $DIR/issue-3680.rs:3:9
5 | ---- this match expression has type `std::option::Option<_>`
7 | ^^^^^^ expected enum `std::option::Option`, found enum `std::result::Result`
9 = note: expected type `std::option::Option<_>`
10 found type `std::result::Result<_, _>`
12 error: aborting due to previous error
14 For more information about this error, try `rustc --explain E0308`.