Clippy · Correctness

Ineffective lint attribute on an import item

clippy::useless_attribute

Move the attribute to the item it should govern, or make it an inner #! attribute if it was meant for the module.

Category: Correctness
Default level: warn
Tier: P1
Producer: Clippy
Diff scope: line

Not a defect when

There is effectively no such case: the lints that apply to a use or extern crate item itself, such as unused_imports or deprecated, are exempt, so the attribute does nothing where it stands.

What it reads

Clippy, with the compiler behind it. The only pass that compiles.

Tier

Serious: worth interrupting other work for.

The tier bounds how severe a rule may be; its category bounds the tier.

Diff scope

The changed line itself.

What --scope contextual looks at to decide whether a change caused the finding.

Change it

Turn it off, or make it blocking, without touching the code it flags:

rust-doctor --rule clippy::useless_attribute=off .
rust-doctor --rule clippy::useless_attribute=error .

Set it once in rust-doctor.toml

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