error[E0277]: `<impl Iterator as Iterator>::Item` doesn't implement `Debug`
  --> $DIR/impl-trait-with-missing-bounds.rs:6:13
   |
LL |         qux(constraint);
   |         --- ^^^^^^^^^^ the trait `Debug` is not implemented for `<impl Iterator as Iterator>::Item`
   |         |
   |         required by a bound introduced by this call
   |
note: required by a bound in `qux`
  --> $DIR/impl-trait-with-missing-bounds.rs:50:16
   |
LL | fn qux(_: impl std::fmt::Debug) {}
   |                ^^^^^^^^^^^^^^^ required by this bound in `qux`
help: introduce a type parameter with a trait bound instead of using `impl Trait`
   |
LL - fn foo(constraints: impl  Iterator) {
LL + fn foo<I: Iterator>(constraints: I) where <I as Iterator>::Item: Debug {
   |

error[E0277]: `<impl Iterator as Iterator>::Item` doesn't implement `Debug`
  --> $DIR/impl-trait-with-missing-bounds.rs:14:13
   |
LL |         qux(constraint);
   |         --- ^^^^^^^^^^ the trait `Debug` is not implemented for `<impl Iterator as Iterator>::Item`
   |         |
   |         required by a bound introduced by this call
   |
note: required by a bound in `qux`
  --> $DIR/impl-trait-with-missing-bounds.rs:50:16
   |
LL | fn qux(_: impl std::fmt::Debug) {}
   |                ^^^^^^^^^^^^^^^ required by this bound in `qux`
help: introduce a type parameter with a trait bound instead of using `impl Trait`
   |
LL - fn bar<T>(t: T, constraints: impl Iterator) where T: std::fmt::Debug {
LL + fn bar<T, I: Iterator>(t: T, constraints: I) where T: std::fmt::Debug, <I as Iterator>::Item: Debug {
   |

error[E0277]: `<impl Iterator as Iterator>::Item` doesn't implement `Debug`
  --> $DIR/impl-trait-with-missing-bounds.rs:22:13
   |
LL |         qux(constraint);
   |         --- ^^^^^^^^^^ the trait `Debug` is not implemented for `<impl Iterator as Iterator>::Item`
   |         |
   |         required by a bound introduced by this call
   |
note: required by a bound in `qux`
  --> $DIR/impl-trait-with-missing-bounds.rs:50:16
   |
LL | fn qux(_: impl std::fmt::Debug) {}
   |                ^^^^^^^^^^^^^^^ required by this bound in `qux`
help: introduce a type parameter with a trait bound instead of using `impl Trait`
   |
LL - fn baz(t: impl std::fmt::Debug, constraints: impl Iterator) {
LL + fn baz<I: Iterator>(t: impl std::fmt::Debug, constraints: I) where <I as Iterator>::Item: Debug {
   |

error[E0277]: `<impl Iterator as Iterator>::Item` doesn't implement `Debug`
  --> $DIR/impl-trait-with-missing-bounds.rs:30:13
   |
LL |         qux(constraint);
   |         --- ^^^^^^^^^^ the trait `Debug` is not implemented for `<impl Iterator as Iterator>::Item`
   |         |
   |         required by a bound introduced by this call
   |
note: required by a bound in `qux`
  --> $DIR/impl-trait-with-missing-bounds.rs:50:16
   |
LL | fn qux(_: impl std::fmt::Debug) {}
   |                ^^^^^^^^^^^^^^^ required by this bound in `qux`
help: introduce a type parameter with a trait bound instead of using `impl Trait`
   |
LL - fn bat<I, T: std::fmt::Debug>(t: T, constraints: impl Iterator, _: I) {
LL + fn bat<I, T: std::fmt::Debug, U: Iterator>(t: T, constraints: U, _: I) where <U as Iterator>::Item: Debug {
   |

error[E0277]: `<impl Iterator + std::fmt::Debug as Iterator>::Item` doesn't implement `Debug`
  --> $DIR/impl-trait-with-missing-bounds.rs:37:13
   |
LL |         qux(constraint);
   |         --- ^^^^^^^^^^ the trait `Debug` is not implemented for `<impl Iterator + std::fmt::Debug as Iterator>::Item`
   |         |
   |         required by a bound introduced by this call
   |
note: required by a bound in `qux`
  --> $DIR/impl-trait-with-missing-bounds.rs:50:16
   |
LL | fn qux(_: impl std::fmt::Debug) {}
   |                ^^^^^^^^^^^^^^^ required by this bound in `qux`
help: introduce a type parameter with a trait bound instead of using `impl Trait`
   |
LL - fn bak(constraints: impl  Iterator + std::fmt::Debug) {
LL + fn bak<I: Iterator + std::fmt::Debug>(constraints: I) where <I as Iterator>::Item: Debug {
   |

error[E0277]: `<impl Iterator as Iterator>::Item` doesn't implement `Debug`
  --> $DIR/impl-trait-with-missing-bounds.rs:45:13
   |
LL |         qux(constraint);
   |         --- ^^^^^^^^^^ the trait `Debug` is not implemented for `<impl Iterator as Iterator>::Item`
   |         |
   |         required by a bound introduced by this call
   |
note: required by a bound in `qux`
  --> $DIR/impl-trait-with-missing-bounds.rs:50:16
   |
LL | fn qux(_: impl std::fmt::Debug) {}
   |                ^^^^^^^^^^^^^^^ required by this bound in `qux`
help: introduce a type parameter with a trait bound instead of using `impl Trait`
   |
LL - fn baw<>(constraints: impl Iterator) {
LL + fn baw<I: Iterator>(constraints: I) where <I as Iterator>::Item: Debug {
   |

error: aborting due to 6 previous errors

For more information about this error, try `rustc --explain E0277`.