E0277E0277 — Type Does Not Implement Iterator
A type is used in a for loop or iterator context but does not implement Iterator.
E0277A type is used as a callable but does not implement Fn, FnMut, or FnOnce.
You are trying to call something that is not a function or closure. The value may be a struct, enum, or other non-callable type. Closures and function pointers implement the Fn traits automatically.
Ensure you are passing a function or closure. Implement the correct Fn trait if the type should be callable. Check that the closure signature matches the expected Fn trait bound.
E0277A type is used in a for loop or iterator context but does not implement Iterator.
E0369A binary operator is used with types that do not support it.
E0405A trait name is used but not defined or imported in the current scope.
E0614The dereference operator (*) is used on a type that does not implement Deref.
clippy::unused_importsAn imported item is not used anywhere in the file.
E0425An identifier is used but not defined in the current scope.