| error[E0308]: mismatched types | |
| --> $DIR/issue-15783.rs:8:19 | |
| | | |
| LL | let msg = foo(x); | |
| | ^ expected slice `[&str]`, found array `[&str; 1]` | |
| | | |
| = note: expected enum `std::option::Option<&[&str]>` | |
| found enum `std::option::Option<&[&str; 1]>` | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0308`. |