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compiler: fix few unused_peekable and needless_pass_by_ref_mut clippy lints #123188
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warning: `peek` never called on `Peekable` iterator --> compiler\rustc_session\src\utils.rs:130:13 | 130 | let mut args = std::env::args_os().map(|arg| arg.to_string_lossy().to_string()).peekable(); | ^^^^ | = help: consider removing the call to `peekable` = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_peekable warning: `peek` never called on `Peekable` iterator --> compiler\rustc_trait_selection\src\traits\error_reporting\suggestions.rs:4934:17 | 4934 | let mut bounds = pred.bounds.iter().peekable(); | ^^^^^^ | = help: consider removing the call to `peekable` = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_peekable
warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_session\src\config.rs:2111:20 | 2111 | unstable_opts: &mut UnstableOptions, | ^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&UnstableOptions` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_session\src\config.rs:2013:16 | 2013 | early_dcx: &mut EarlyDiagCtxt, | ^^^^^^^^^^^^^^^^^^ help: consider changing to: `&EarlyDiagCtxt` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_ast_passes\src\ast_validation.rs:1555:11 | 1555 | this: &mut AstValidator<'_>, | ^^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&AstValidator<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_infer\src\infer\snapshot\fudge.rs:16:12 | 16 | table: &mut UnificationTable<'_, 'tcx, T>, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&UnificationTable<'_, 'tcx, T>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_expand\src\expand.rs:961:13 | 961 | parser: &mut Parser<'a>, | ^^^^^^^^^^^^^^^ help: consider changing to: `&Parser<'a>` | = warning: changing this function will impact semver compatibility = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\asm.rs:306:28 | 306 | fn err_duplicate_option(p: &mut Parser<'_>, symbol: Symbol, span: Span) { | ^^^^^^^^^^^^^^^ help: consider changing to: `&Parser<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\asm.rs:318:8 | 318 | p: &mut Parser<'a>, | ^^^^^^^^^^^^^^^ help: consider changing to: `&Parser<'a>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\assert.rs:114:25 | 114 | fn parse_assert<'a>(cx: &mut ExtCtxt<'a>, sp: Span, stream: TokenStream) -> PResult<'a, Assert> { | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'a>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\asm.rs:32:10 | 32 | ecx: &mut ExtCtxt<'a>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'a>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\test.rs:99:9 | 99 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\source_util.rs:237:9 | 237 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\format.rs:809:10 | 809 | ecx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\format.rs:737:10 | 737 | ecx: &mut ExtCtxt<'a>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'a>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\format.rs:68:24 | 68 | fn parse_args<'a>(ecx: &mut ExtCtxt<'a>, sp: Span, tts: TokenStream) -> PResult<'a, MacroInput> { | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'a>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\format.rs:607:10 | 607 | ecx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\edition_panic.rs:43:9 | 43 | cx: &'cx mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\concat_bytes.rs:11:9 | 11 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\cfg.rs:38:22 | 38 | fn parse_cfg<'a>(cx: &mut ExtCtxt<'a>, span: Span, tts: TokenStream) -> PResult<'a, ast::MetaItem> { | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'a>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\cfg_accessible.rs:13:28 | 13 | fn validate_input<'a>(ecx: &mut ExtCtxt<'_>, mi: &'a ast::MetaItem) -> Option<&'a ast::Path> { | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\mod.rs:120:9 | 120 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:1573:13 | 1573 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:1556:13 | 1556 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:1463:13 | 1463 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:1433:36 | 1433 | fn summarise_struct(&self, cx: &mut ExtCtxt<'_>, struct_def: &VariantData) -> StaticFields { | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:953:13 | 953 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:932:13 | 932 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:580:13 | 580 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:989:13 | 989 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\clone.rs:97:9 | 97 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\cmp\eq.rs:52:9 | 52 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\hash.rs:50:9 | 50 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\encodable.rs:150:9 | 150 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\default.rs:176:9 | 176 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\default.rs:106:9 | 106 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\default.rs:57:9 | 57 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\default.rs:84:9 | 84 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\debug.rs:212:9 | 212 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\debug.rs:48:26 | 48 | fn show_substructure(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_>) -> BlockOrExpr { | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\clone.rs:160:9 | 160 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\cmp\partial_ord.rs:72:9 | 72 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\cmp\partial_eq.rs:19:18 | 19 | fn cs_eq(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_>) -> BlockOrExpr { | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\cmp\ord.rs:42:19 | 42 | pub fn cs_cmp(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_>) -> BlockOrExpr { | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:917:13 | 917 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:1406:13 | 1406 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:1157:13 | 1157 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:1103:13 | 1103 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:1080:13 | 1080 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:859:13 | 859 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:805:13 | 805 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:467:13 | 467 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_builtin_macros\src\deriving\generic\mod.rs:457:13 | 457 | cx: &mut ExtCtxt<'_>, | ^^^^^^^^^^^^^^^^ help: consider changing to: `&ExtCtxt<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_trait_selection\src\traits\project.rs:511:12 | 511 | selcx: &mut SelectionContext<'a, 'tcx>, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&SelectionContext<'a, 'tcx>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_trait_selection\src\traits\specialize\specialization_graph.rs:201:28 | 201 | fn iter_children(children: &mut Children) -> impl Iterator<Item = DefId> + '_ { | ^^^^^^^^^^^^^ help: consider changing to: `&Children` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_codegen_ssa\src\back\rpath.rs:80:41 | 80 | fn get_rpath_relative_to_output(config: &mut RPathConfig<'_>, lib: &Path) -> OsString { | ^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&RPathConfig<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_codegen_ssa\src\back\rpath.rs:76:42 | 76 | fn get_rpaths_relative_to_output(config: &mut RPathConfig<'_>) -> Vec<OsString> { | ^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&RPathConfig<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_codegen_ssa\src\back\rpath.rs:55:23 | 55 | fn get_rpaths(config: &mut RPathConfig<'_>) -> Vec<OsString> { | ^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&RPathConfig<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_codegen_ssa\src\back\rpath.rs:15:32 | 15 | pub fn get_rpath_flags(config: &mut RPathConfig<'_>) -> Vec<OsString> { | ^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&RPathConfig<'_>` | = warning: changing this function will impact semver compatibility = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
maybe bug here? warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_borrowck\src\diagnostics\conflict_errors.rs:3857:35 | 3857 | pub(crate) fn emit(&self, cx: &mut MirBorrowckCtxt<'_, 'tcx>, diag: &mut Diag<'_>) -> String { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&MirBorrowckCtxt<'_, 'tcx>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_borrowck\src\type_check\liveness\trace.rs:601:17 | 601 | typeck: &mut TypeChecker<'_, 'tcx>, | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&TypeChecker<'_, 'tcx>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_mir_transform\src\coroutine.rs:1229:11 | 1229 | body: &mut Body<'tcx>, | ^^^^^^^^^^^^^^^ help: consider changing to: `&Body<'tcx>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_mir_transform\src\nrvo.rs:123:11 | 123 | body: &mut mir::Body<'_>, | ^^^^^^^^^^^^^^^^^^ help: consider changing to: `&mir::Body<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut warning: this argument is a mutable reference, but not used mutably --> compiler\rustc_mir_transform\src\nrvo.rs:87:34 | 87 | fn local_eligible_for_nrvo(body: &mut mir::Body<'_>) -> Option<Local> { | ^^^^^^^^^^^^^^^^^^ help: consider changing to: `&mir::Body<'_>` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
Some changes occurred in match lowering cc @Nadrieril Some changes occurred to MIR optimizations cc @rust-lang/wg-mir-opt |
//FIXME: this is not mutated, but expected to be modified as | ||
// out param, bug? | ||
dropped_at: &mut Vec<(Local, Location)>, |
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This is called here
rust/compiler/rustc_borrowck/src/type_check/liveness/mod.rs
Lines 55 to 59 in 760e567
let polonius_drop_used = facts_enabled.then(|| { | |
let mut drop_used = Vec::new(); | |
polonius::populate_access_facts(typeck, body, location_table, move_data, &mut drop_used); | |
drop_used | |
}); |
where drop_used expected to be populated, but it's not.
@bors r+ |
Nice! What should i do about 2 added FIXMEs? |
the |
compiler: fix few unused_peekable and needless_pass_by_ref_mut clippy lints This fixes few instances of `unused_peekable` and `needless_pass_by_ref_mut`. While i expected to fix more warnings, `needless_pass_by_ref_mut` produced too much for one PR, so i stopped here. Better reviewed commit by commit, as fixes splitted by chunks.
…iaskrgr Rollup of 5 pull requests Successful merges: - rust-lang#123106 (CFI: Abstract Closures and Coroutines) - rust-lang#123176 (Normalize the result of `Fields::ty_with_args`) - rust-lang#123186 (copy any file from stage0/lib to stage0-sysroot/lib) - rust-lang#123187 (Forward port 1.77.1 release notes) - rust-lang#123188 (compiler: fix few unused_peekable and needless_pass_by_ref_mut clippy lints) r? `@ghost` `@rustbot` modify labels: rollup
…iaskrgr Rollup of 4 pull requests Successful merges: - rust-lang#123176 (Normalize the result of `Fields::ty_with_args`) - rust-lang#123186 (copy any file from stage0/lib to stage0-sysroot/lib) - rust-lang#123187 (Forward port 1.77.1 release notes) - rust-lang#123188 (compiler: fix few unused_peekable and needless_pass_by_ref_mut clippy lints) r? `@ghost` `@rustbot` modify labels: rollup
Rollup merge of rust-lang#123188 - klensy:clippy-me2, r=Nilstrieb compiler: fix few unused_peekable and needless_pass_by_ref_mut clippy lints This fixes few instances of `unused_peekable` and `needless_pass_by_ref_mut`. While i expected to fix more warnings, `needless_pass_by_ref_mut` produced too much for one PR, so i stopped here. Better reviewed commit by commit, as fixes splitted by chunks.
This fixes few instances of
unused_peekable
andneedless_pass_by_ref_mut
. While i expected to fix more warnings,needless_pass_by_ref_mut
produced too much for one PR, so i stopped here.Better reviewed commit by commit, as fixes splitted by chunks.