AkousaRust-kompilatorfelFel
E0283E0283 — Ambiguous Trait Implementation
Multiple trait implementations could apply, and Rust cannot determine which one to use.
rustcargo
Visa detaljer clippy::map_unwrap_orUsing .map().unwrap_or() can be replaced with .map_or().
The chained .map(f).unwrap_or(default) on an Option can be written more concisely as .map_or(default, f). This is a style lint that encourages more idiomatic Rust.
Replace .map(f).unwrap_or(default) with .map_or(default, f). Alternatively, use .map_or_else(default_fn, f) if the default is computed lazily.
E0283Multiple trait implementations could apply, and Rust cannot determine which one to use.
E0716A reference is held to a temporary value that is immediately dropped.
E0119Two or more implementations of the same trait exist for the same type.
E0405A trait name is used but not defined or imported in the current scope.
E0152A language item (#[lang = ...]) is defined more than once.
E0658A feature that is not yet stabilized in Rust is being used without the feature gate.