src/test/ui/suggestions/adt-param-with-implicit-sized-bound.stderr

   1 error[E0277]: the size for values of type `T` cannot be known at compilation time
   2   --> $DIR/adt-param-with-implicit-sized-bound.rs:25:9
   3    |
   4 LL | struct X<T>(T);
   5    |          - required by this bound in `X`
   6 ...
   7 LL | struct Struct5<T: ?Sized>{
   8    |                - this type parameter needs to be `std::marker::Sized`
   9 LL |     _t: X<T>,
  10    |         ^^^^ doesn't have a size known at compile-time
  11    |
  12 help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
  13   --> $DIR/adt-param-with-implicit-sized-bound.rs:18:10
  14    |
  15 LL | struct X<T>(T);
  16    |          ^  - ...if indirection was used here: `Box<T>`
  17    |          |
  18    |          this could be changed to `T: ?Sized`...
  19
  20 error[E0277]: the size for values of type `Self` cannot be known at compilation time
  21   --> $DIR/adt-param-with-implicit-sized-bound.rs:2:19
  22    |
  23 LL |     fn func1() -> Struct1<Self>;
  24    |                   ^^^^^^^^^^^^^ doesn't have a size known at compile-time
  25 ...
  26 LL | struct Struct1<T>{
  27    |                - required by this bound in `Struct1`
  28    |
  29 help: consider further restricting `Self`
  30    |
  31 LL |     fn func1() -> Struct1<Self> where Self: std::marker::Sized;
  32    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  33 help: consider relaxing the implicit `Sized` restriction
  34    |
  35 LL | struct Struct1<T: ?Sized>{
  36    |                 ^^^^^^^^
  37
  38 error[E0277]: the size for values of type `Self` cannot be known at compilation time
  39   --> $DIR/adt-param-with-implicit-sized-bound.rs:3:23
  40    |
  41 LL |     fn func2<'a>() -> Struct2<'a, Self>;
  42    |                       ^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
  43 ...
  44 LL | struct Struct2<'a, T>{
  45    |                    - required by this bound in `Struct2`
  46    |
  47 help: consider further restricting `Self`
  48    |
  49 LL |     fn func2<'a>() -> Struct2<'a, Self> where Self: std::marker::Sized;
  50    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  51 help: consider relaxing the implicit `Sized` restriction
  52    |
  53 LL | struct Struct2<'a, T: ?Sized>{
  54    |                     ^^^^^^^^
  55
  56 error[E0277]: the size for values of type `Self` cannot be known at compilation time
  57   --> $DIR/adt-param-with-implicit-sized-bound.rs:4:19
  58    |
  59 LL |     fn func3() -> Struct3<Self>;
  60    |                   ^^^^^^^^^^^^^ doesn't have a size known at compile-time
  61 ...
  62 LL | struct Struct3<T>{
  63    |                - required by this bound in `Struct3`
  64    |
  65 help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
  66   --> $DIR/adt-param-with-implicit-sized-bound.rs:14:16
  67    |
  68 LL | struct Struct3<T>{
  69    |                ^ this could be changed to `T: ?Sized`...
  70 LL |     _t: T,
  71    |         - ...if indirection was used here: `Box<T>`
  72 help: consider further restricting `Self`
  73    |
  74 LL |     fn func3() -> Struct3<Self> where Self: std::marker::Sized;
  75    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  76
  77 error[E0277]: the size for values of type `Self` cannot be known at compilation time
  78   --> $DIR/adt-param-with-implicit-sized-bound.rs:5:19
  79    |
  80 LL |     fn func4() -> Struct4<Self>;
  81    |                   ^^^^^^^^^^^^^ doesn't have a size known at compile-time
  82 ...
  83 LL | struct Struct4<T>{
  84    |                - required by this bound in `Struct4`
  85    |
  86 help: consider further restricting `Self`
  87    |
  88 LL |     fn func4() -> Struct4<Self> where Self: std::marker::Sized;
  89    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  90 help: consider relaxing the implicit `Sized` restriction
  91    |
  92 LL | struct Struct4<T: ?Sized>{
  93    |                 ^^^^^^^^
  94
  95 error: aborting due to 5 previous errors
  96
  97 For more information about this error, try `rustc --explain E0277`.