Self-not-sized-by-default adjust-default-object-bounds allocator ascription-no-coerce.md autoref-closure bounds box-not-special breaking-change-policy champions clarify-lint closure-ret-type-syntax closures-b closures const-vs-static contingency-plan default-object-bound-x default-object-bound defaulted-type-params extensible-enums-and-structs fields-in-traits fn-return-assoc-type homogeneous-tuples hrtb incremental-compilation infer-outlives integer-overflow-2 integer-overflow language-semver macros-and-attrs master memory-model-strike-team mir multiple-lifetime-bounds nested-method-calls nll no-bivariance object-safety-exempt-methods opt-in-v2 opt-in overflow-amend precedence-of-plus privacy-amendments projection-and-lifetimes-tmp projection-and-lifetimes rebalancing-coherence restore-int-fallback restrict-constants-in-patterns rfc66-amendment scoped-attributes-for-checked-arithmetic shadowing sionara-contravariance traits-multiparam traits-plus-where-minus-fundeps traits try-catch try-trait ufcs unused-impl-parameters variance-inference-defaults variance-redux variance where-clauses