Clippy lint · Suspicious · checked with Clippy 0.1.99

clippy::blanket_clippy_restriction_lints: `clippy::restriction` is not meant to be enabled as a group

What it meansChecks for warn/deny/forbid attributes targeting the whole clippy::restriction category. It is in the suspicious group and warns by default.

What you see

warning: `clippy::restriction` is not meant to be enabled as a group
 --> main.rs:1:9
  |
1 | #![deny(clippy::restriction)]
  |         ^^^^^^^^^^^^^^^^^^^
  |
  = help: enable the restriction lints you need individually
  = help: for further information visit https://rust-lang.github.io/rust-clippy/stable/index.html#blanket_clippy_restriction_lints
  = note: `#[warn(clippy::blanket_clippy_restriction_lints)]` on by default

Real output of Clippy 0.1.99 (Rust 1.99) on the example below. Names and line numbers in yours will differ.

Does it matter?

Restriction lints sometimes are in contrast with other lints or even go against idiomatic rust. These lints should only be enabled on a lint-by-lint basis and with careful consideration.

Code that is most likely wrong or useless. Warns by default.

How to fix it

Clippy does not fix this one automatically. Change the code by hand:

Flagged

#![deny(clippy::restriction)]

Write this instead

#![deny(clippy::as_conversions)]

Turn it off, or on

Allow it where it does not fit your code, as narrowly as you can:

On one item

#[allow(clippy::blanket_clippy_restriction_lints)]
fn my_function() { /* ... */ }

Whole crate (Cargo.toml)

[lints.clippy]
blanket_clippy_restriction_lints = "allow"

One run

cargo clippy -- -A clippy::blanket-clippy-restriction-lints

The [lints] table needs Rust 1.74 or newer. In a workspace, put it under [workspace.lints.clippy] and add [lints] workspace = true to each member.

Suspiciousgroup

warndefault level

nofixed by cargo clippy --fix

1.47.0added in Rust

Clippy's own documentation

What it does

Checks for warn/deny/forbid attributes targeting the whole clippy::restriction category.

Why is this bad?

Restriction lints sometimes are in contrast with other lints or even go against idiomatic rust. These lints should only be enabled on a lint-by-lint basis and with careful consideration.

Example

#![deny(clippy::restriction)]

Use instead:

#![deny(clippy::as_conversions)]

From the Clippy lint list (0.1.99), part of the Rust project, MIT or Apache-2.0. Official entry.

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