error: you should consider deriving a `Default` implementation for `Foo` --> new_without_default.rs:10:5 | 10 | pub fn new() -> Foo { Foo } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D new-without-default-derive` implied by `-D warnings` help: try this | 7 | #[derive(Default)] | error: you should consider deriving a `Default` implementation for `Bar` --> new_without_default.rs:16:5 | 16 | pub fn new() -> Self { Bar } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: try this | 13 | #[derive(Default)] | error: you should consider adding a `Default` implementation for `LtKo<'c>` --> new_without_default.rs:64:5 | 64 | pub fn new() -> LtKo<'c> { unimplemented!() } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D new-without-default` implied by `-D warnings` help: try this | 64 | impl Default for LtKo<'c> { 65 | fn default() -> Self { 66 | Self::new() 67 | } 68 | } 69 | ... error: aborting due to 3 previous errors To learn more, run the command again with --verbose.