Clippy · Correctness

Contradictory file OpenOptions combination

clippy::nonsensical_open_options

Remove the option that contradicts the others, such as truncate without write access.

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

Not a defect when

There is effectively no such case: the flagged combination, such as truncate without write, either fails at open time or is silently ignored, so the chain always needs fixing.

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

Set it once in rust-doctor.toml

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