E0463E0463 — Cannot Find Crate
The specified crate cannot be found by the compiler.
dead_codeA function, struct, enum variant, or constant is defined but never used.
The compiler detected that an item is not referenced anywhere in the crate. This is a warning, not an error. Items may become dead code after refactoring.
Remove the unused item if it is no longer needed. Prefix the name with an underscore (_) to suppress the warning. Add #[allow(dead_code)] if the item is intentionally unused.
E0463The specified crate cannot be found by the compiler.
clippy::redundant_closureA closure that just calls a function can be replaced with the function itself.
E0601The binary crate does not have a main function entry point.
E0277A type does not implement a required trait.
E0308The closure returns a different type than expected by the context.
E0382A value is used after it has been moved to another variable or function.