src/test/ui/suggestions/derive-macro-missing-bounds.stderr

   1 error[E0277]: `a::Inner<T>` doesn't implement `Debug`
   2   --> $DIR/derive-macro-missing-bounds.rs:12:21
   3    |
   4 LL |     #[derive(Debug)]
   5    |              ----- in this derive macro expansion
   6 LL |     struct Outer<T>(Inner<T>);
   7    |                     ^^^^^^^^ `a::Inner<T>` cannot be formatted using `{:?}`
   8    |
   9    = help: the trait `Debug` is not implemented for `a::Inner<T>`
  10    = note: add `#[derive(Debug)]` to `a::Inner<T>` or manually `impl Debug for a::Inner<T>`
  11    = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
  12 help: consider annotating `a::Inner<T>` with `#[derive(Debug)]`
  13    |
  14 LL |     #[derive(Debug)]
  15    |
  16 help: consider introducing a `where` bound, but there might be an alternative better way to express this requirement
  17    |
  18 LL |     struct Outer<T>(Inner<T>) where a::Inner<T>: Debug;
  19    |                               ++++++++++++++++++++++++
  20
  21 error[E0277]: the trait bound `T: c::Trait` is not satisfied
  22   --> $DIR/derive-macro-missing-bounds.rs:41:21
  23    |
  24 LL |     #[derive(Debug)]
  25    |              ----- in this derive macro expansion
  26 LL |     struct Outer<T>(Inner<T>);
  27    |                     ^^^^^^^^ the trait `c::Trait` is not implemented for `T`
  28    |
  29 note: required because of the requirements on the impl of `Debug` for `c::Inner<T>`
  30   --> $DIR/derive-macro-missing-bounds.rs:34:28
  31    |
  32 LL |     impl<T: Debug + Trait> Debug for Inner<T> {
  33    |                            ^^^^^     ^^^^^^^^
  34    = note: 1 redundant requirement hidden
  35    = note: required because of the requirements on the impl of `Debug` for `&c::Inner<T>`
  36    = note: required for the cast to the object type `dyn Debug`
  37    = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
  38 help: consider restricting type parameter `T`
  39    |
  40 LL |     struct Outer<T: c::Trait>(Inner<T>);
  41    |                   ++++++++++
  42
  43 error[E0277]: the trait bound `T: d::Trait` is not satisfied
  44   --> $DIR/derive-macro-missing-bounds.rs:56:21
  45    |
  46 LL |     #[derive(Debug)]
  47    |              ----- in this derive macro expansion
  48 LL |     struct Outer<T>(Inner<T>);
  49    |                     ^^^^^^^^ the trait `d::Trait` is not implemented for `T`
  50    |
  51 note: required because of the requirements on the impl of `Debug` for `d::Inner<T>`
  52   --> $DIR/derive-macro-missing-bounds.rs:49:13
  53    |
  54 LL |     impl<T> Debug for Inner<T> where T: Debug, T: Trait {
  55    |             ^^^^^     ^^^^^^^^
  56    = note: 1 redundant requirement hidden
  57    = note: required because of the requirements on the impl of `Debug` for `&d::Inner<T>`
  58    = note: required for the cast to the object type `dyn Debug`
  59    = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
  60 help: consider restricting type parameter `T`
  61    |
  62 LL |     struct Outer<T: d::Trait>(Inner<T>);
  63    |                   ++++++++++
  64
  65 error[E0277]: the trait bound `T: e::Trait` is not satisfied
  66   --> $DIR/derive-macro-missing-bounds.rs:71:21
  67    |
  68 LL |     #[derive(Debug)]
  69    |              ----- in this derive macro expansion
  70 LL |     struct Outer<T>(Inner<T>);
  71    |                     ^^^^^^^^ the trait `e::Trait` is not implemented for `T`
  72    |
  73 note: required because of the requirements on the impl of `Debug` for `e::Inner<T>`
  74   --> $DIR/derive-macro-missing-bounds.rs:64:13
  75    |
  76 LL |     impl<T> Debug for Inner<T> where T: Debug + Trait {
  77    |             ^^^^^     ^^^^^^^^
  78    = note: 1 redundant requirement hidden
  79    = note: required because of the requirements on the impl of `Debug` for `&e::Inner<T>`
  80    = note: required for the cast to the object type `dyn Debug`
  81    = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
  82 help: consider restricting type parameter `T`
  83    |
  84 LL |     struct Outer<T: e::Trait>(Inner<T>);
  85    |                   ++++++++++
  86
  87 error[E0277]: the trait bound `T: f::Trait` is not satisfied
  88   --> $DIR/derive-macro-missing-bounds.rs:86:21
  89    |
  90 LL |     #[derive(Debug)]
  91    |              ----- in this derive macro expansion
  92 LL |     struct Outer<T>(Inner<T>);
  93    |                     ^^^^^^^^ the trait `f::Trait` is not implemented for `T`
  94    |
  95 note: required because of the requirements on the impl of `Debug` for `f::Inner<T>`
  96   --> $DIR/derive-macro-missing-bounds.rs:79:20
  97    |
  98 LL |     impl<T: Debug> Debug for Inner<T> where T: Trait {
  99    |                    ^^^^^     ^^^^^^^^
 100    = note: 1 redundant requirement hidden
 101    = note: required because of the requirements on the impl of `Debug` for `&f::Inner<T>`
 102    = note: required for the cast to the object type `dyn Debug`
 103    = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
 104 help: consider restricting type parameter `T`
 105    |
 106 LL |     struct Outer<T: f::Trait>(Inner<T>);
 107    |                   ++++++++++
 108
 109 error: aborting due to 5 previous errors
 110
 111 For more information about this error, try `rustc --explain E0277`.