AkousaRust-kompilatorfelFel
E0621E0621 — Explicit Lifetime Required
A function parameter needs an explicit lifetime annotation to satisfy the borrow checker.
rustcargo
Visa detaljer E0308The closure returns a different type than expected by the context.
A closure is expected to return a specific type (based on the function it is passed to), but the closure body returns a different type. This commonly occurs with .map(), .filter(), and similar iterator methods.
Check the expected return type from the function that takes the closure. Convert the return value to the expected type. Ensure all branches of the closure return the same type.
E0621A function parameter needs an explicit lifetime annotation to satisfy the borrow checker.
E0507You are trying to move a value out of a reference, which would leave the reference dangling.
E0369A binary operator is used with types that do not support it.
E0425An identifier is used but not defined in the current scope.
E0106A reference in a function signature or struct is missing a lifetime parameter.
clippy::unwrap_usedThe unwrap() method is used, which may panic at runtime.