What causes unused_mut?

The variable has the mut keyword but is never modified after declaration. The mut keyword is unnecessary and can be misleading.

How to fix unused_mut?

Remove the mut keyword from the variable declaration. If the variable should be mutated, add the mutation code. Check if refactoring removed the mutation.

unused_mut — Unused Mut Warning | Error Code Encyclopedia | akousa.net

Erros do Compilador RustErro

E0658

E0658 — Unstable Feature Used

A feature that is not yet stabilized in Rust is being used without the feature gate.

rustcargo

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Erros do Compilador RustAviso

clippy::clone_on_copy

Clippy — Clone on Copy Type

The clone() method is called on a type that implements Copy.

rustcargo

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Erros do Compilador RustErro

E0277

E0277 — Type Does Not Implement Sized

A dynamically sized type (DST) is used where a Sized type is required.

rustcargo

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Erros do Compilador RustErro

E0433

E0433 — Failed to Resolve Module Path

The module path used in a use statement or type path cannot be resolved.

rustcargo

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Erros do Compilador RustErro

E0382

E0382 — Use of Moved Value

A value is used after it has been moved to another variable or function.

rustcargo

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Erros do Compilador RustErro

E0425

E0425 — Cannot Find Value in This Scope

An identifier is used but not defined in the current scope.

rustcargo

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Unused Mut Warning

O que causa este erro

Como corrigir

Códigos de Erro Relacionados

E0658 — Unstable Feature Used

Clippy — Clone on Copy Type

E0277 — Type Does Not Implement Sized

E0433 — Failed to Resolve Module Path

E0382 — Use of Moved Value

E0425 — Cannot Find Value in This Scope

Unused Mut Warning

O que causa este erro

Como corrigir

Códigos de Erro Relacionados

E0658 — Unstable Feature Used

Clippy — Clone on Copy Type

E0277 — Type Does Not Implement Sized

E0433 — Failed to Resolve Module Path

E0382 — Use of Moved Value

E0425 — Cannot Find Value in This Scope