rust-clippy good first issues (Rust)

`redundant_field_names` triggered on derived code 6 days ago

C-bug good first issue T-macros I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Clippy does not respect inline #[allow(…)] attribute 13 days ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

website: cognitive complexity does insufficiently explain method 17 days ago

good first issue A-documentation

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint suggesting from_fn instead of while let Some(x) 17 days ago

good first issue A-lint L-style L-suggestion

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Strange suggestion from suspicious_operation_groupings 27 days ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`manual_assert_eq` must take size into consideration 28 days ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

FP: `map_clone` suggests replacing an explicit `Foo::clone(x)` with `cloned()` about 1 month ago

C-bug good first issue I-suggestion-causes-error I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

clippy::replace_box suggests a MachineApplicable fix that is semantically questionable for Box<&mut T> about 1 month ago

C-bug good first issue I-suggestion-causes-error

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`std_wildcard_imports` to lint against `use std::mod::*` about 1 month ago

good first issue A-lint E-help-wanted

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Ban Stacked `if`'s about 1 month ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Extensions to should_assert_eq about 1 month ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Move `excessive_nesting` to `pedantic` about 1 month ago

good first issue A-category

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

New lint: Suggest calling methods directoly on `NonZero` instead of via `get()` about 1 month ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

rc_buffer lint is dangerous as it changes runtime behaviour about 2 months ago

C-bug good first issue L-suggestion

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

New lint: `windows_const` and `chunks_const` about 2 months ago

good first issue T-middle A-lint L-perf

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

don't fold(..) an Option when you can map_or(..) about 2 months ago

good first issue T-middle A-lint L-style

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint assertions on collection emptiness checks about 2 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Have a lint against usize-to-u64 casts (or, against *all* integer casts) about 2 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Add lints against more manual integer ops where direct methods exist about 2 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint for unused arguments starting with a _ 2 months ago

good first issue A-lint L-style

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint x != _ || x != _ 2 months ago

good first issue T-middle A-lint L-correctness

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint to warn about str::as_ptr() usage in ffi call 2 months ago

good first issue T-middle A-lint L-correctness

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint for Iterator + Copy 3 months ago

good first issue E-medium A-lint L-correctness

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`wildcard_imports` is triggered on generated code 3 months ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`semicolon_if_nothing_returned` is triggered on generated code 3 months ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`borrow_as_ptr` is triggered on generated code 3 months ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`ref_patterns` is triggered on generated code 3 months ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

TOCTOU: call `Path::metadata` after `Path::exists` 3 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`single_range_in_vec_init` should detect all kind of ranges 3 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

if_same_then_else Should not warn for `else if` blocks. 4 months ago

good first issue S-needs-discussion I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Refactor the `clippy_lints/src/strings.rs` file 4 months ago

good first issue E-help-wanted

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

New lint: clone on arguments taken by reference 4 months ago

good first issue T-middle A-lint L-unnecessary

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint suggestion: `manual_isolate_lowest_one` 4 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`manual_flatten` false positives with reference slices 4 months ago

C-bug good first issue I-suggestion-causes-error I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

map_clone should not suggest copied() for MSRV < 1.36 4 months ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

useless op on lhs of integer division or modulo 4 months ago

good first issue T-middle A-lint L-correctness L-unnecessary

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Suggest `as_chunks` when people use `chunks_exact` with a constant length 5 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint calling methods that are redundant to deref 5 months ago

good first issue T-middle A-lint L-unnecessary

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

upper_case_acronyms complains about full-capital identifiers 5 months ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Document `pub` functions in `clippy_utils` 5 months ago

good first issue

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Tracking Issue: lints that lint against `match` and `if-let`s should be more consistent 5 months ago

good first issue C-enhancement C-tracking-issue

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`unnecessary_lazy_evaluations`: lint `{Option,Result}::map_or_else` 5 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

suspicious-operation-groupings false positive 5 months ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Restrict let_and_return if the let binding is large 5 months ago

good first issue S-needs-discussion

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

unused_lifetime false positive 5 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint on method/struct fields sharing the same name 6 months ago

good first issue T-middle A-lint L-style

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`needless_range_loop` suggestion removes panics 6 months ago

C-bug good first issue I-suggestion-causes-bug

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

lint idea: `useless_default_generic_parameters` 6 months ago

good first issue A-lint G-Rust-for-Linux

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint for .clone().into_boxed_str() 6 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

New lint idea: `manual_max_by_key` 6 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`never_loop`: Note why the loop will never loop. 6 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Suggest `A && B` for `if A { B } else { false }` 7 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint inline trait bounds in favor of `where` bounds 7 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Detect creation of new collection when it could be emptied 7 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`duration_suboptimal_units` should not trigger on small values 7 months ago

C-bug good first issue I-false-positive

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Add lint for `bare_must_use` - `#[must_use]` without a note 7 months ago

good first issue A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Rewrite `arithmetic_side_effects` to not use matching on string representation of types 7 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`cast_lossless` not triggered by `char as u32` 7 months ago

C-bug good first issue I-false-negative

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

New pattern for `manual_is_variant_and` 8 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`cannot replace slice of data that was already replaced` when trying to apply lifetime elision suggestions 8 months ago

C-bug good first issue T-macros

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Should match on bool with if-s on match arms be considered idiomatic? 8 months ago

C-bug good first issue

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Suggest `Cstr::count_bytes` in `strlen_on_c_strings` 9 months ago

good first issue

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Improper error about else if collapse. 9 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`clippy::main_recursion` tests seem to be testing nothing anymore 9 months ago

good first issue L-tests

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Suggestion for `useless_conversion` with `.into_iter()` could be better 9 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`never_loop`: Also check all known iterator reductions. 9 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`while_let_on_iterator` suggested solution doesn't work in default implementations of traits without explicit `Sized` bound 10 months ago

C-bug good first issue I-suggestion-causes-error

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint for unused empty function value 10 months ago

C-bug good first issue I-false-negative

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

FR: redundant_field_names should distinguish between all and some fields matching 10 months ago

good first issue C-enhancement L-style

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Iterators: suggest `position()` instead of `enumerate() + find() + .0` 10 months ago

good first issue T-middle A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Error applying suggestions (range underflow) 10 months ago

C-bug good first issue

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

lint long chains of into/float additions/multiplications 10 months ago

good first issue T-AST A-lint L-perf

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Catch transmuting Option<&T> to Option<&mut T> 11 months ago

good first issue E-medium T-middle C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Tracking Issue: Fix auto-applicable lint suggestions by using multipart suggestions 11 months ago

AI Summary: This is a tracking issue aimed at enabling `rustfix` to automatically apply several existing lint suggestions. It requires removing `@no-rustfix` annotations from a list of specified test files and refactoring the corresponding lint logic to generate `multipart_suggestion`s. This change will allow `rustfix` to provide more comprehensive and automatically applicable fixes for these lints.

Complexity: 3/5

good first issue E-medium C-tracking-issue

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Lint suggestion: `duplicate_impl_blocks` 11 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Manual assert_eq! (enhance `if_then_panic`) 11 months ago

good first issue C-enhancement

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

`cargo clippy --fix` don't remove redundant `mut` 11 months ago

good first issue C-enhancement S-fixed

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

use statements anywhere but top of module 12 months ago

good first issue T-AST A-lint

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Configuring clippy in Cargo.toml missing from documentation? 12 months ago

good first issue A-documentation

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

Update CONTRIBUTING.md to include RustRover instead of deprecated IntelliJ Rust about 1 year ago

AI Summary: Update the Clippy project's CONTRIBUTING.md file to replace outdated IntelliJ Rust setup instructions with instructions for the current recommended Rust IDE, RustRover.

Complexity: 2/5

good first issue A-documentation

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

large_enum_variant propose a wrong solution for no_std about 1 year ago

AI Summary: The task is to investigate why Clippy's `large_enum_variant` lint suggests using `Box` as a solution for large enum variants, which is problematic in `no_std` environments lacking an allocator. The goal is to either find a way to make the lint suggestion more context-aware or document this limitation.

Complexity: 4/5

C-bug good first issue I-suggestion-causes-error

rust-lang/rust-clippy

13.4K

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

Rust

#lint#rust

rust-lang/rust-clippy

Open Issues Need Help