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Auto merge of #113303 - compiler-errors:yeet-chalk, r=lcnr
Remove chalk support from the compiler Removes chalk (`-Ztrait-solver=chalk`) from the compiler and prunes any dead code resulting from this, mainly: * Remove the chalk compatibility layer in `compiler/rustc_traits/src/chalk` * Remove the chalk flag `-Ztrait-solver=chalk` and its `TraitEngine` implementation * Remove `TypeWellFormedFromEnv` (and its many `bug!()` match arms) * Remove the chalk migration mode from compiletest * Remove the `chalkify` UI tests (do we want to keep any of these, but migrate them to `-Ztrait-solver=next`??) Fulfills rust-lang/types-team#93. r? `@jackh726`
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‎Cargo.lock‎

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@@ -433,60 +433,6 @@ dependencies = [
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"rustc-std-workspace-core",
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]
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[[package]]
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name = "chalk-derive"
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version = "0.92.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ff5053a8a42dbff5279a82423946fc56dc1253b76cf211b2b3c14b3aad4e1281"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn 2.0.8",
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"synstructure 0.13.0",
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]
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[[package]]
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name = "chalk-engine"
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version = "0.92.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b9d0e18f29b8b0f4dcf7d31fe00c884af67719699e381e8dcc9d9624b1621c60"
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dependencies = [
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"chalk-derive",
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"chalk-ir",
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"chalk-solve",
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"rustc-hash",
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"tracing",
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]
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[[package]]
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name = "chalk-ir"
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version = "0.92.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8a56de2146a8ed0fcd54f4bd50db852f1de4eac9e1efe568494f106c21b77d2a"
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dependencies = [
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"bitflags 1.3.2",
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"chalk-derive",
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"lazy_static",
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]
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[[package]]
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name = "chalk-solve"
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version = "0.92.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b392e02b4c81ec76d3748da839fc70a5539b83d27c9030668463d34d5110b860"
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dependencies = [
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"chalk-derive",
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"chalk-ir",
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"ena",
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"indexmap 1.9.3",
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"itertools",
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"petgraph",
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"rustc-hash",
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"tracing",
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"tracing-subscriber",
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"tracing-tree",
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]
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[[package]]
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name = "chrono"
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version = "0.4.26"
@@ -1168,12 +1114,6 @@ dependencies = [
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"windows-sys 0.48.0",
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]
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[[package]]
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name = "fixedbitset"
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version = "0.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "37ab347416e802de484e4d03c7316c48f1ecb56574dfd4a46a80f173ce1de04d"
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[[package]]
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name = "flate2"
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version = "1.0.26"
@@ -2466,16 +2406,6 @@ dependencies = [
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"sha2",
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]
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[[package]]
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name = "petgraph"
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version = "0.5.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "467d164a6de56270bd7c4d070df81d07beace25012d5103ced4e9ff08d6afdb7"
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dependencies = [
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"fixedbitset",
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"indexmap 1.9.3",
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]
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[[package]]
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name = "phf"
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version = "0.10.1"
@@ -3675,7 +3605,6 @@ name = "rustc_middle"
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version = "0.0.0"
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dependencies = [
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"bitflags 1.3.2",
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"chalk-ir",
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"derive_more",
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"either",
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"field-offset",
@@ -4102,9 +4031,6 @@ dependencies = [
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name = "rustc_traits"
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version = "0.0.0"
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dependencies = [
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"chalk-engine",
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"chalk-ir",
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"chalk-solve",
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"rustc_ast",
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"rustc_data_structures",
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"rustc_hir",
@@ -5033,7 +4959,6 @@ dependencies = [
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"thread_local",
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"tracing",
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"tracing-core",
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"tracing-log",
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]
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[[package]]

‎compiler/rustc_hir_analysis/src/astconv/mod.rs‎

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@@ -983,8 +983,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
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ty::ClauseKind::RegionOutlives(_)
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| ty::ClauseKind::ConstArgHasType(..)
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| ty::ClauseKind::WellFormed(_)
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| ty::ClauseKind::ConstEvaluatable(_)
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| ty::ClauseKind::TypeWellFormedFromEnv(_) => {
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| ty::ClauseKind::ConstEvaluatable(_) => {
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bug!()
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}
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}

‎compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs‎

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@@ -551,7 +551,6 @@ fn trait_predicate_kind<'tcx>(
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| ty::PredicateKind::ClosureKind(..)
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| ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
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| ty::PredicateKind::ConstEquate(..)
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| ty::PredicateKind::Ambiguous
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| ty::PredicateKind::Clause(ty::ClauseKind::TypeWellFormedFromEnv(..)) => None,
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| ty::PredicateKind::Ambiguous => None,
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}
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}

‎compiler/rustc_hir_analysis/src/outlives/explicit.rs‎

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@@ -53,8 +53,7 @@ impl<'tcx> ExplicitPredicatesMap<'tcx> {
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| ty::ClauseKind::Projection(_)
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| ty::ClauseKind::ConstArgHasType(_, _)
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| ty::ClauseKind::WellFormed(_)
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| ty::ClauseKind::ConstEvaluatable(_)
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| ty::ClauseKind::TypeWellFormedFromEnv(_) => {}
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| ty::ClauseKind::ConstEvaluatable(_) => {}
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}
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}
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‎compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs‎

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@@ -685,7 +685,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
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// inference variable.
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| ty::PredicateKind::ClosureKind(..)
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| ty::PredicateKind::Ambiguous
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| ty::PredicateKind::Clause(ty::ClauseKind::TypeWellFormedFromEnv(..)) => None,
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=> None,
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},
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)
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}

‎compiler/rustc_hir_typeck/src/method/probe.rs‎

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@@ -847,8 +847,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> {
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| ty::ClauseKind::Projection(_)
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| ty::ClauseKind::ConstArgHasType(_, _)
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| ty::ClauseKind::WellFormed(_)
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| ty::ClauseKind::ConstEvaluatable(_)
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| ty::ClauseKind::TypeWellFormedFromEnv(_) => None,
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| ty::ClauseKind::ConstEvaluatable(_) => None,
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}
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});
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‎compiler/rustc_infer/src/infer/outlives/mod.rs‎

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@@ -31,8 +31,7 @@ pub fn explicit_outlives_bounds<'tcx>(
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| ty::ClauseKind::Projection(_)
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| ty::ClauseKind::ConstArgHasType(_, _)
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| ty::ClauseKind::WellFormed(_)
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| ty::ClauseKind::ConstEvaluatable(_)
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| ty::ClauseKind::TypeWellFormedFromEnv(_) => None,
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| ty::ClauseKind::ConstEvaluatable(_) => None,
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})
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}
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‎compiler/rustc_infer/src/traits/util.rs‎

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@@ -370,9 +370,6 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> {
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}),
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);
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}
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ty::PredicateKind::Clause(ty::ClauseKind::TypeWellFormedFromEnv(..)) => {
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// Nothing to elaborate
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}
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ty::PredicateKind::Ambiguous => {}
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ty::PredicateKind::AliasRelate(..) => {
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// No

‎compiler/rustc_interface/src/tests.rs‎

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@@ -841,7 +841,7 @@ fn test_unstable_options_tracking_hash() {
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tracked!(thir_unsafeck, true);
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tracked!(tiny_const_eval_limit, true);
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tracked!(tls_model, Some(TlsModel::GeneralDynamic));
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tracked!(trait_solver, TraitSolver::Chalk);
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tracked!(trait_solver, TraitSolver::NextCoherence);
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tracked!(translate_remapped_path_to_local_path, false);
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tracked!(trap_unreachable, Some(false));
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tracked!(treat_err_as_bug, NonZeroUsize::new(1));

‎compiler/rustc_lint/src/builtin.rs‎

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@@ -1606,8 +1606,7 @@ impl<'tcx> LateLintPass<'tcx> for TrivialConstraints {
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// Ignore bounds that a user can't type
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| ClauseKind::WellFormed(..)
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// FIXME(generic_const_exprs): `ConstEvaluatable` can be written
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| ClauseKind::ConstEvaluatable(..)
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| ClauseKind::TypeWellFormedFromEnv(_) => continue,
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| ClauseKind::ConstEvaluatable(..) => continue,
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};
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if predicate.is_global() {
16131612
cx.emit_spanned_lint(

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