Useful Rust lints

Cargo.toml

[lints.rust]
# Correctness
let-underscore = "deny"
meta_variable_misuse = "deny"
missing_abi = "forbid"
unsafe_attr_outside_unsafe = "forbid"
unsafe_op_in_unsafe_fn = "forbid"
unused_must_use = "deny"
# Restriction
missing_docs = "warn"
unsafe_code = "forbid"
# Suspicious
missing_copy_implementations = "warn"
missing_debug_implementations = "warn"
redundant_imports = "warn"
redundant_lifetimes = "warn"
unit_bindings = "warn"
unnameable_types = "warn"
unreachable_pub = "warn"
unused = { level = "warn", priority = -1 }
unused_crate_dependencies = "warn"
# Style
non_ascii_idents = "deny"
unused_import_braces = "warn"
unused_lifetimes = "warn"
unused_qualifications = "warn"

[lints.clippy]
# Restriction
allow_attributes = "warn"
allow_attributes_without_reason = "warn"
as_pointer_underscore = "deny"
assertions_on_result_states = "warn"
clone_on_ref_ptr = "warn"
create_dir = "warn"
dbg_macro = "warn"
default_union_representation = "deny"
deref_by_slicing = "warn"
disallowed_macros = "deny"
disallowed_methods = "deny"
disallowed_types = "deny"
doc_include_without_cfg = "warn"
empty_enum_variants_with_brackets = "warn"
empty_structs_with_brackets = "warn"
exhaustive_enums = "warn"
exhaustive_structs = "warn"
exit = "deny"
filetype_is_file = "warn"
float_cmp_const = "warn"
fn_to_numeric_cast = "warn"
get_unwrap = "warn"
if_then_some_else_none = "warn"
impl_trait_in_params = "warn"
infinite_loop = "warn"
let_underscore_must_use = "deny"
let_underscore_untyped = "warn"
lossy_float_literal = "warn"
map_err_ignore = "warn"
map_with_unused_argument_over_ranges = "warn"
mem_forget = "deny"
missing_assert_message = "warn"
missing_docs_in_private_items = "warn"
missing_inline_in_public_items = "warn"
mod_module_files = "warn"
module_name_repetitions = "warn"
multiple_unsafe_ops_per_block = "forbid"
mutex_atomic = "warn"
mutex_integer = "warn"
needless_raw_strings = "warn"
non_zero_suggestions = "warn"
pathbuf_init_then_push = "warn"
pattern_type_mismatch = "warn"
print_stderr = "warn"
print_stdout = "warn"
pub_without_shorthand = "warn"
rc_buffer = "warn"
rc_mutex = "warn"
redundant_type_annotations = "warn"
rest_pat_in_fully_bound_structs = "warn"
semicolon_outside_block = "warn"
str_to_string = "warn"
string_lit_chars_any = "warn"
string_slice = "warn"
string_to_string = "warn"
tests_outside_test_module = "warn"
todo = "warn"
try_err = "warn"
undocumented_unsafe_blocks = "forbid"
unnecessary_safety_comment = "warn"
unnecessary_safety_doc = "warn"
unnecessary_self_imports = "warn"
unneeded_field_pattern = "warn"
unseparated_literal_suffix = "warn"
unused_result_ok = "warn"
unused_trait_names = "warn"
unwrap_used = "warn"
verbose_file_reads = "warn"
# Pedantic
pedantic = { level ="warn", priority = -1 }
must_use_candidate = "allow"
# Nursery
nursery = { level = "warn", priority = -1 }
redundant_pub_crate = "allow"
# Cargo
cargo = { level = "warn", priority = -1 }

clippy.toml

check-private-items = true
disallowed-methods = [
	{ path = "alloc::boxed::Box::leak", reason = "do not leak memory" },
	{ path = "alloc::vec::Vec::leak", reason = "do not leak memory" },
	{ path = "alloc::string::String::leak", reason = "do not leak memory" },
]