| error[E0596]: cannot borrow data in a `&` reference as mutable | |
| --> $DIR/issue-41726.rs:15:9 | |
| | | |
| LL | things[src.as_str()].sort(); //~ ERROR cannot borrow immutable | |
| | ^^^^^^^^^^^^^^^^^^^^ cannot borrow as mutable | |
| | | |
| = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `std::collections::HashMap<std::string::String, std::vec::Vec<std::string::String>>` | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0596`. |