E0502E0502 — Cannot Borrow as Mutable Because Also Borrowed as Immutable
A value cannot be mutably borrowed while an immutable borrow is still active.
E0609The struct or union does not have a field with the given name.
You are accessing a field that does not exist on the struct. The field may be misspelled, private (from another module), or the struct definition may be different from what you expect.
Check the struct definition for available field names. Fix typos in the field name. Make the field pub if it needs to be accessed from outside the module. Use the correct struct type.
E0502A value cannot be mutably borrowed while an immutable borrow is still active.
clippy::needless_returnA return keyword is used unnecessarily at the end of a function.
E0277A dynamically sized type (DST) is used where a Sized type is required.
E0282Rust cannot infer the type of a value and needs an explicit annotation.
clippy::redundant_closureA closure that just calls a function can be replaced with the function itself.
E0255A local definition conflicts with an imported name.