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error: you seem to be trying to use `Box<Vec<..>>`. Consider using just `Vec<..>`
--> $DIR/box_collection.rs:21:14
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LL | fn test(foo: Box<Vec<bool>>) {}
| ^^^^^^^^^^^^^^
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= note: `-D clippy::box-collection` implied by `-D warnings`
= help: `Vec<..>` is already on the heap, `Box<Vec<..>>` makes an extra allocation
error: you seem to be trying to use `Box<String>`. Consider using just `String`
--> $DIR/box_collection.rs:28:15
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LL | fn test3(foo: Box<String>) {}
| ^^^^^^^^^^^
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= help: `String` is already on the heap, `Box<String>` makes an extra allocation
error: you seem to be trying to use `Box<HashMap<..>>`. Consider using just `HashMap<..>`
--> $DIR/box_collection.rs:30:15
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LL | fn test4(foo: Box<HashMap<String, String>>) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: `HashMap<..>` is already on the heap, `Box<HashMap<..>>` makes an extra allocation
error: aborting due to 3 previous errors
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