error[E0599]: no method named `test_mut` found for type `std::vec::Vec<{integer}>` in the current scope --> $DIR/auto-ref-slice-plus-ref.rs:7:7 | LL | a.test_mut(); | ^^^^^^^^ help: did you mean: `get_mut` | = help: items from traits can only be used if the trait is implemented and in scope = note: the following trait defines an item `test_mut`, perhaps you need to implement it: candidate #1: `MyIter` error[E0599]: no method named `test` found for type `std::vec::Vec<{integer}>` in the current scope --> $DIR/auto-ref-slice-plus-ref.rs:8:7 | LL | a.test(); | ^^^^ | = help: items from traits can only be used if the trait is implemented and in scope = note: the following trait defines an item `test`, perhaps you need to implement it: candidate #1: `MyIter` error[E0599]: no method named `test` found for type `[{integer}; 1]` in the current scope --> $DIR/auto-ref-slice-plus-ref.rs:10:11 | LL | ([1]).test(); | ^^^^ | = help: items from traits can only be used if the trait is implemented and in scope = note: the following trait defines an item `test`, perhaps you need to implement it: candidate #1: `MyIter` error[E0599]: no method named `test` found for type `&[{integer}; 1]` in the current scope --> $DIR/auto-ref-slice-plus-ref.rs:11:12 | LL | (&[1]).test(); | ^^^^ | = help: items from traits can only be used if the trait is implemented and in scope = note: the following trait defines an item `test`, perhaps you need to implement it: candidate #1: `MyIter` error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0599`.