Method-Call

Fix E0387: Method Called on Trait Object Without Object Safety

Rust intermediate Linux macOS Windows WebAssembly Aug 12, 2026

Rust compiler error E0387 occurs when attempting to call a method on a trait object that violates object safety rules or when the method is not available on the concrete trait object type.

Fix E0689: method call has field expression before it

Rust intermediate Linux macOS Windows WebAssembly Aug 4, 2026

Learn how to resolve Rust compiler error E0689 which occurs when a field expression precedes a method call in an invalid syntax pattern.