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error: collection is never read --> test_suite/tests/test_gen.rs:722:25 | 722 | #[derive(Serialize, Deserialize)] | ^^^^^^^^^^^ | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collection_is_never_read note: the lint level is defined here --> test_suite/tests/test_gen.rs:22:9 | 22 | #![deny(clippy::collection_is_never_read)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)