error[E0392]: parameter `T` is never used --> $DIR/issue-20413.rs:5:15 | LL | struct NoData; | ^ unused parameter | = help: consider removing `T`, referring to it in a field, or using a marker such as `std::marker::PhantomData` error[E0275]: overflow evaluating the requirement `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>: Foo` --> $DIR/issue-20413.rs:8:1 | LL | trait Foo { | --------- required by `Foo` ... LL | / impl Foo for T where NoData: Foo { LL | | LL | | fn answer(self) { LL | | LL | | let val: NoData = NoData; LL | | } LL | | } | |_^ | = help: consider adding a `#![recursion_limit="256"]` attribute to your crate = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>` = note: required because of the requirements on the impl of `Foo` for `NoData>` = note: required because of the requirements on the impl of `Foo` for `NoData` error[E0275]: overflow evaluating the requirement `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>: Foo` --> $DIR/issue-20413.rs:10:6 | LL | trait Foo { | --------- required by `Foo` ... LL | fn answer(self) { | ^^^^^^ | = help: consider adding a `#![recursion_limit="256"]` attribute to your crate = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>>` = note: required because of the requirements on the impl of `Foo` for `NoData>>` = note: required because of the requirements on the impl of `Foo` for `NoData>` = note: required because of the requirements on the impl of `Foo` for `NoData` error: aborting due to 3 previous errors Some errors have detailed explanations: E0275, E0392. For more information about an error, try `rustc --explain E0275`.