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error: using `.clone()` on a double reference, which returns `&Vec<i32>` instead of cloning the inner type
--> $DIR/suspicious-double-ref-op.rs:14:23
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LL | let z: &Vec<_> = y.clone();
| ^^^^^^^^
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note: the lint level is defined here
--> $DIR/suspicious-double-ref-op.rs:1:9
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LL | #![deny(suspicious_double_ref_op, noop_method_call)]
| ^^^^^^^^^^^^^^^^^^^^^^^^
error: using `.clone()` on a double reference, which returns `&CloneType<u32>` instead of cloning the inner type
--> $DIR/suspicious-double-ref-op.rs:32:63
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LL | let clone_type_ref_clone: &CloneType<u32> = clone_type_ref.clone();
| ^^^^^^^^
error: using `.deref()` on a double reference, which returns `&PlainType<u32>` instead of dereferencing the inner type
--> $DIR/suspicious-double-ref-op.rs:36:63
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LL | let non_deref_type_deref: &PlainType<u32> = non_deref_type.deref();
| ^^^^^^^^
error: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
--> $DIR/suspicious-double-ref-op.rs:40:44
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LL | let _v: Vec<&str> = xs.iter().map(|x| x.clone()).collect(); // could use `*x` instead
| ^^^^^^^^
error: aborting due to 4 previous errors
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