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error[E0368]: binary assignment operation `+=` cannot be applied to type `T`
--> $DIR/issue-6738.rs:6:9
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LL | self.x += v.x;
| ------^^^^^^^
| |
| cannot use `+=` on type `T`
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help: consider restricting type parameter `T`
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LL | impl<T: std::ops::AddAssign> Foo<T> {
| +++++++++++++++++++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0368`.
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