error: queries overflow the depth limit! --> $DIR/query_depth.rs:28:1 | LL | fn main() { | ^^^^^^^^^ | = help: consider increasing the recursion limit by adding a `#![recursion_limit = "128"]` attribute to your crate (`query_depth`) = note: query depth increased by 66 when computing layout of `core::option::Option>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` error: aborting due to previous error