src/test/ui/object-safety/issue-102762.stderr

   1 error[E0038]: the trait `Fetcher` cannot be made into an object
   2   --> $DIR/issue-102762.rs:18:21
   3    |
   4 LL |     fn get<'a>(self: &'a Box<Self>) -> Pin<Box<dyn Future<Output = Vec<u8>> + 'a>>
   5    |                      ------------- help: consider changing method `get`'s `self` parameter to be `&self`: `&Self`
   6 ...
   7 LL | fn fetcher() -> Box<dyn Fetcher> {
   8    |                     ^^^^^^^^^^^ `Fetcher` cannot be made into an object
   9    |
  10 note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
  11   --> $DIR/issue-102762.rs:10:22
  12    |
  13 LL | pub trait Fetcher: Send + Sync {
  14    |           ------- this trait cannot be made into an object...
  15 LL |     fn get<'a>(self: &'a Box<Self>) -> Pin<Box<dyn Future<Output = Vec<u8>> + 'a>>
  16    |                      ^^^^^^^^^^^^^ ...because method `get`'s `self` parameter cannot be dispatched on
  17
  18 error: aborting due to previous error
  19
  20 For more information about this error, try `rustc --explain E0038`.