if let ty::Adt(def, substs) = ty.kind()
&& Some(def.did()) == tcx.lang_items().pin_type()
&& let ty::Ref(_, _, hir::Mutability::Mut) = substs.type_at(0).kind()
&& let self_ty = infcx.replace_bound_vars_with_fresh_vars(
fn_call_span,
LateBoundRegionConversionTime::FnCall,
if let ty::Adt(def, substs) = ty.kind()
&& Some(def.did()) == tcx.lang_items().pin_type()
&& let ty::Ref(_, _, hir::Mutability::Mut) = substs.type_at(0).kind()
&& let self_ty = infcx.replace_bound_vars_with_fresh_vars(
fn_call_span,
LateBoundRegionConversionTime::FnCall,