| error[E0433]: failed to resolve: use of undeclared type `HashMap` | |
| --> $DIR/issue-31997-1.rs:20:19 | |
| | | |
| LL | let mut map = HashMap::new(); | |
| | ^^^^^^^ use of undeclared type `HashMap` | |
| | | |
| help: consider importing this struct | |
| | | |
| LL + use std::collections::HashMap; | |
| | | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0433`. |