rust-lang/rust-clippy

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A bunch of lints to catch common mistakes and improve your Rust code. Book: https://doc.rust-lang.org/clippy/

Stars: 13.5k
Forks: 2.2k
Open beginner issues: 3
Indexed issues: 2.5k
Avg merge: 2d 10h
Merged PRs (30d): 32

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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2,508 open issues indexed

`clippy::single_match` suggestion does not compile when the expression contains un-chainable comparison operators Open

C-bug I-suggestion-causes-error

Difficulty 3/5 1-2 days Newbie friendliness 72/100

rust-lang/rust-clippy#17756 · 1 comment · Opened Sep 19, 2026
cast_possible_wrap false negative Open

C-bug I-false-negative

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/rust-clippy#17755 · 2 comments · Opened Sep 18, 2026
encountered incremental compilation error with evaluate_obligation(d87a56c5dc6db6e-e9735b6f63d47303) Open

C-bug I-ICE

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/rust-clippy#17748 · 4 comments · Opened Sep 16, 2026
Rename `allow-mixed-uninlined-format-args` Open

A-ui

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/rust-clippy#17747 · 2 comments · Opened Sep 16, 2026
`panic!` in both branches of `if` is linted weirdly Open

C-bug I-false-positive

rust-lang/rust-clippy#17740 · 1 comment · 1 assignee · Opened Sep 14, 2026
`redundant_closure_for_method_calls` suggestion causes `multiple applicable items in scope` Open

C-bug I-false-positive I-suggestion-causes-error

rust-lang/rust-clippy#17730 · 3 comments · 1 assignee · Opened Sep 13, 2026
`ref_patterns` vs match ergonomics Open

C-question L-restriction

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rust-lang/rust-clippy#17725 · Opened Sep 12, 2026
test_attr_in_doctest emits for attribute not related to actual test functions Open

C-bug I-false-positive

rust-lang/rust-clippy#17724 · 1 comment · 1 assignee · Opened Sep 12, 2026
`cast_possible_truncation`: `x.min(C) as T` is only recognized when `C` is a literal Open

C-bug I-false-positive L-pedantic

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/rust-clippy#17722 · 1 comment · 1 reaction · Opened Sep 11, 2026
Look for `clippy.toml` in `.cargo/` and `.config/` directories Open

C-enhancement

Difficulty 3/5 1-2 days Newbie friendliness 70/100

rust-lang/rust-clippy#17721 · Opened Sep 11, 2026
Add iter::successors and iter::repeat_with to the list of possibly infinite iterators Open

A-lint

rust-lang/rust-clippy#17719 · 2 comments · 1 assignee · Opened Sep 10, 2026
The `disallowed_types` lint also lints when the type comes from a macro expansion in a different crate Open

C-bug I-false-positive

rust-lang/rust-clippy#17718 · 1 comment · 1 assignee · Opened Sep 10, 2026
[Regression 1.98.1] needless_borrows_for_generic_args hangs on Option::filter with a recursive enum Open

beta-nominated C-bug I-ICE

Difficulty 4/5 3-5 days Newbie friendliness 55/100

rust-lang/rust-clippy#17717 · 5 comments · Opened Sep 10, 2026
FP `explicit_auto_deref` on using never-to-any coercion with `&!` Open

C-bug I-false-positive I-suggestion-causes-error

rust-lang/rust-clippy#17713 · 1 comment · 1 assignee · Opened Sep 9, 2026
Extend `clippy::from_str_radix_10` to `NonZero::from_str_radix` Open

A-lint

rust-lang/rust-clippy#17712 · 2 comments · 1 assignee · Opened Sep 9, 2026
Invalid `manual_map` suggestion for `#[track_caller]` function Open

C-bug I-false-positive I-suggestion-causes-bug

rust-lang/rust-clippy#17706 · 1 comment · 1 assignee · Opened Sep 8, 2026
Add a lint for `NonZero::new(0)` literal type footgun Open

A-lint

rust-lang/rust-clippy#17702 · 4 comments · 1 reaction · 1 assignee · Opened Sep 7, 2026
`clippy::panic`/`clippy::todo`/etc dont trigger when direct argument to macros. Open

C-bug I-false-negative

rust-lang/rust-clippy#17699 · 4 comments · 1 assignee · Opened Sep 7, 2026
New lint: `split(" ")` where `split_whitespace()` was likely meant Open

A-lint

rust-lang/rust-clippy#17693 · 4 comments · 1 reaction · 1 assignee · Opened Sep 6, 2026
zombie_processes doesn't catch an immediately discarded spawned child Open

C-bug I-false-negative

rust-lang/rust-clippy#17692 · 1 comment · 1 assignee · Opened Sep 6, 2026
Add a `no_empty_line_after_inner_attr` lint Open

A-lint

Difficulty 3/5 1-2 days Newbie friendliness 74/100

rust-lang/rust-clippy#17687 · 3 comments · Opened Sep 5, 2026
New lint: `derived_partial_eq_with_manual_eq` Open

A-lint

rust-lang/rust-clippy#17685 · 1 comment · 1 assignee · Opened Sep 4, 2026
`assert_is_empty` suggestion missing type annotations Open

C-bug I-suggestion-causes-error

rust-lang/rust-clippy#17676 · 7 comments · 1 assignee · Opened Sep 2, 2026
`assert_is_empty` should prefer array repeat syntax Open

C-bug L-suggestion

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

rust-lang/rust-clippy#17674 · 5 comments · Opened Sep 2, 2026
`assert_is_empty` suggests unnecessary cast for `Vec<_>` Open

C-bug L-suggestion

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

rust-lang/rust-clippy#17673 · 3 comments · Opened Sep 2, 2026
pub keyword incorrectly highlighted as changed in suggestion for must_use_candidate Open

C-bug D-confusing L-suggestion

rust-lang/rust-clippy#17669 · 2 comments · 1 assignee · Opened Sep 1, 2026
`assert_is_empty` could catch every other collection in `std::collections` Open

C-bug I-false-negative

rust-lang/rust-clippy#17660 · 3 comments · 1 assignee · Opened Aug 30, 2026
`assert_is_empty` could catch non-`PartialEq` cases in Rust >= 1.96.0 Open

C-bug I-false-negative

rust-lang/rust-clippy#17659 · 1 comment · 1 assignee · Opened Aug 30, 2026
Consider reintroducing `Cargo.lock` files to this repository Open

A-infra

Difficulty 4/5 3-5 days Newbie friendliness 48/100

rust-lang/rust-clippy#17656 · 1 comment · Opened Aug 30, 2026
mixed numeric and data operations (`restriction` group) Open

A-lint

Difficulty 5/5 Over a week Newbie friendliness 42/100

rust-lang/rust-clippy#17649 · 1 comment · Opened Aug 29, 2026
`double_ended_iterator_last` should not emit on move FnMut closure Open

C-bug I-false-positive I-suggestion-causes-bug

Difficulty 3/5 1-2 days Newbie friendliness 58/100

rust-lang/rust-clippy#17646 · 1 comment · Opened Aug 28, 2026
redundant-clone: doesn't see redundant clone when involving aliasing Open

C-an-interesting-project C-bug E-hard I-false-negative L-nursery

rust-lang/rust-clippy#17637 · 1 comment · 1 assignee · Opened Aug 27, 2026
`cast_ptr_alignment` doesn't see alignment check that follows right after Open

C-bug E-hard I-false-positive L-pedantic

rust-lang/rust-clippy#17636 · 4 comments · 1 assignee · Opened Aug 27, 2026
Suggest using `String::extend` where appropriate Open

A-lint

rust-lang/rust-clippy#17633 · 4 comments · 1 assignee · Opened Aug 26, 2026
`filter_map_bool_then` borrow check error Open

C-bug I-false-positive I-suggestion-causes-error

rust-lang/rust-clippy#17629 · 1 comment · 1 assignee · Opened Aug 25, 2026
New lint: `path_attribute` Open

A-lint

Difficulty 4/5 3-5 days Newbie friendliness 48/100

rust-lang/rust-clippy#17628 · Opened Aug 25, 2026
FP `clippy::byte_char_slices` : cannot borrow data in a `&` reference as mutable Open

C-bug I-suggestion-causes-error

rust-lang/rust-clippy#17627 · 3 comments · 1 assignee · Opened Aug 24, 2026
match_like_matches_macro does not lint on T-F-T-style matches Open

C-bug I-false-negative

Difficulty 3/5 1-2 days Newbie friendliness 72/100

rust-lang/rust-clippy#17616 · Opened Aug 23, 2026
Lint suggestion: use `Path::is_empty()` instead of manual comparisons Open

A-lint

rust-lang/rust-clippy#17615 · 1 comment · 1 assignee · Opened Aug 23, 2026
Missing FusedIterator implementations Open

A-lint

rust-lang/rust-clippy#17608 · 2 comments · 1 assignee · Opened Aug 22, 2026
`integer_division_remainder_used` not triggered by inherent division methods Open

C-bug I-false-negative

rust-lang/rust-clippy#17603 · 1 comment · 1 assignee · Opened Aug 22, 2026
Inside try blocks, `if_then_some_else_none` triggers even if the `Some` branch contains `?` Open

C-bug I-false-positive I-suggestion-causes-error

Difficulty 3/5 1-2 days Newbie friendliness 72/100

rust-lang/rust-clippy#17596 · Opened Aug 21, 2026
New lint: require `since` in `#[deprecated]` attribute Open

A-lint

rust-lang/rust-clippy#17595 · 1 comment · 1 assignee · Opened Aug 21, 2026
Lint to warn on imports that only resolve because of other imports Open

A-lint

Difficulty 4/5 3-5 days Newbie friendliness 52/100

rust-lang/rust-clippy#17594 · 1 comment · Opened Aug 20, 2026
`chunks_exact_to_as_chunks` suggests iter() instead of iter_mut() for chunks_exact_mut and does not compile Open

C-bug I-suggestion-causes-error

rust-lang/rust-clippy#17593 · 1 comment · 1 assignee · Opened Aug 20, 2026
while_let_loop seems to not fire if the loop has a label Open

C-bug I-false-negative

rust-lang/rust-clippy#17590 · 1 comment · 1 assignee · Opened Aug 19, 2026
Add configuration option to make an exception to `wildcard_enum_match_arm` on a per-enum basis Open

A-ui C-enhancement

rust-lang/rust-clippy#17588 · 7 comments · 2 reactions · 1 assignee · Opened Aug 19, 2026
Catch double reverses on the same iterator Open

A-lint

rust-lang/rust-clippy#17587 · 1 comment · 1 assignee · Opened Aug 19, 2026
clippy::large_futures does not fire when the .await comes from a macro expansion (e.g. #[tauri::command]) Open

I-false-negative

rust-lang/rust-clippy#17586 · 7 comments · 1 assignee · Opened Aug 18, 2026
`disallowed-methods` and similar options don't respect renamed renamed dependencies in Cargo.toml Open

C-bug I-false-negative

rust-lang/rust-clippy#17585 · 1 comment · 1 assignee · Opened Aug 18, 2026

rust-lang/rust-clippy

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