error[E0277]: `a::Inner` doesn't implement `Debug` --> $DIR/derive-macro-missing-bounds.rs:12:21 | LL | #[derive(Debug)] | ----- in this derive macro expansion LL | struct Outer(Inner); | ^^^^^^^^ `a::Inner` cannot be formatted using `{:?}` | = help: the trait `Debug` is not implemented for `a::Inner` = note: add `#[derive(Debug)]` to `a::Inner` or manually `impl Debug for a::Inner` = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `a::Inner` with `#[derive(Debug)]` | LL + #[derive(Debug)] LL | struct Inner(T); | help: consider introducing a `where` clause, but there might be an alternative better way to express this requirement | LL | struct Outer(Inner) where a::Inner: Debug; | ++++++++++++++++++++++++ error[E0277]: the trait bound `T: c::Trait` is not satisfied --> $DIR/derive-macro-missing-bounds.rs:41:21 | LL | #[derive(Debug)] | ----- in this derive macro expansion LL | struct Outer(Inner); | ^^^^^^^^ the trait `c::Trait` is not implemented for `T` | note: required for `c::Inner` to implement `Debug` --> $DIR/derive-macro-missing-bounds.rs:34:28 | LL | impl Debug for Inner { | ----- ^^^^^ ^^^^^^^^ | | | unsatisfied trait bound introduced here = note: 1 redundant requirement hidden = note: required for `&c::Inner` to implement `Debug` = note: required for the cast from `&&c::Inner` to `&dyn Debug` = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider restricting type parameter `T` | LL | struct Outer(Inner); | ++++++++++ error[E0277]: the trait bound `T: d::Trait` is not satisfied --> $DIR/derive-macro-missing-bounds.rs:56:21 | LL | #[derive(Debug)] | ----- in this derive macro expansion LL | struct Outer(Inner); | ^^^^^^^^ the trait `d::Trait` is not implemented for `T` | note: required for `d::Inner` to implement `Debug` --> $DIR/derive-macro-missing-bounds.rs:49:13 | LL | impl Debug for Inner where T: Debug, T: Trait { | ^^^^^ ^^^^^^^^ ----- unsatisfied trait bound introduced here = note: 1 redundant requirement hidden = note: required for `&d::Inner` to implement `Debug` = note: required for the cast from `&&d::Inner` to `&dyn Debug` = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider restricting type parameter `T` | LL | struct Outer(Inner); | ++++++++++ error[E0277]: the trait bound `T: e::Trait` is not satisfied --> $DIR/derive-macro-missing-bounds.rs:71:21 | LL | #[derive(Debug)] | ----- in this derive macro expansion LL | struct Outer(Inner); | ^^^^^^^^ the trait `e::Trait` is not implemented for `T` | note: required for `e::Inner` to implement `Debug` --> $DIR/derive-macro-missing-bounds.rs:64:13 | LL | impl Debug for Inner where T: Debug + Trait { | ^^^^^ ^^^^^^^^ ----- unsatisfied trait bound introduced here = note: 1 redundant requirement hidden = note: required for `&e::Inner` to implement `Debug` = note: required for the cast from `&&e::Inner` to `&dyn Debug` = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider restricting type parameter `T` | LL | struct Outer(Inner); | ++++++++++ error[E0277]: the trait bound `T: f::Trait` is not satisfied --> $DIR/derive-macro-missing-bounds.rs:86:21 | LL | #[derive(Debug)] | ----- in this derive macro expansion LL | struct Outer(Inner); | ^^^^^^^^ the trait `f::Trait` is not implemented for `T` | note: required for `f::Inner` to implement `Debug` --> $DIR/derive-macro-missing-bounds.rs:79:20 | LL | impl Debug for Inner where T: Trait { | ^^^^^ ^^^^^^^^ ----- unsatisfied trait bound introduced here = note: 1 redundant requirement hidden = note: required for `&f::Inner` to implement `Debug` = note: required for the cast from `&&f::Inner` to `&dyn Debug` = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider restricting type parameter `T` | LL | struct Outer(Inner); | ++++++++++ error: aborting due to 5 previous errors For more information about this error, try `rustc --explain E0277`.