src/test/ui/fmt/send-sync.stderr

   1 error[E0277]: `core::fmt::Opaque` cannot be shared between threads safely
   2   --> $DIR/send-sync.rs:8:10
   3    |
   4 LL |     send(format_args!("{:?}", c));
   5    |     ---- ^^^^^^^^^^^^^^^^^^^^^^^ `core::fmt::Opaque` cannot be shared between threads safely
   6    |     |
   7    |     required by a bound introduced by this call
   8    |
   9    = help: within `[ArgumentV1<'_>]`, the trait `Sync` is not implemented for `core::fmt::Opaque`
  10    = note: required because it appears within the type `&core::fmt::Opaque`
  11    = note: required because it appears within the type `ArgumentV1<'_>`
  12    = note: required because it appears within the type `[ArgumentV1<'_>]`
  13    = note: required for `&[ArgumentV1<'_>]` to implement `Send`
  14    = note: required because it appears within the type `Arguments<'_>`
  15 note: required by a bound in `send`
  16   --> $DIR/send-sync.rs:1:12
  17    |
  18 LL | fn send<T: Send>(_: T) {}
  19    |            ^^^^ required by this bound in `send`
  20
  21 error[E0277]: `core::fmt::Opaque` cannot be shared between threads safely
  22   --> $DIR/send-sync.rs:9:10
  23    |
  24 LL |     sync(format_args!("{:?}", c));
  25    |     ---- ^^^^^^^^^^^^^^^^^^^^^^^ `core::fmt::Opaque` cannot be shared between threads safely
  26    |     |
  27    |     required by a bound introduced by this call
  28    |
  29    = help: within `Arguments<'_>`, the trait `Sync` is not implemented for `core::fmt::Opaque`
  30    = note: required because it appears within the type `&core::fmt::Opaque`
  31    = note: required because it appears within the type `ArgumentV1<'_>`
  32    = note: required because it appears within the type `[ArgumentV1<'_>]`
  33    = note: required because it appears within the type `&[ArgumentV1<'_>]`
  34    = note: required because it appears within the type `Arguments<'_>`
  35 note: required by a bound in `sync`
  36   --> $DIR/send-sync.rs:2:12
  37    |
  38 LL | fn sync<T: Sync>(_: T) {}
  39    |            ^^^^ required by this bound in `sync`
  40
  41 error: aborting due to 2 previous errors
  42
  43 For more information about this error, try `rustc --explain E0277`.