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error[E0308]: mismatched types
--> $DIR/trait-bounds-cant-coerce.rs:13:7
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LL | a(x);
| - ^ expected trait `Foo + Send`, found trait `Foo`
| |
| arguments to this function are incorrect
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= note: expected struct `Box<(dyn Foo + Send + 'static)>`
found struct `Box<(dyn Foo + 'static)>`
note: function defined here
--> $DIR/trait-bounds-cant-coerce.rs:5:4
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LL | fn a(_x: Box<dyn Foo + Send>) {
| ^ -----------------------
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0308`.
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