autoImplicitCtorParamIssue.lean:1:9-1:10: error(lean.inferBinderTypeFailed): Failed to infer type of binder `x` autoImplicitCtorParamIssue.lean:4:9-4:10: error(lean.inferBinderTypeFailed): Failed to infer type of binder `x` autoImplicitCtorParamIssue.lean:7:7-7:8: error(lean.inferBinderTypeFailed): Failed to infer type of binder `x`