error: duplicated attribute
  --> tests/ui/duplicated_attributes.rs:4:10
   |
LL | #![allow(dead_code)]
   |          ^^^^^^^^^
   |
note: first defined here
  --> tests/ui/duplicated_attributes.rs:3:10
   |
LL | #![allow(dead_code)]
   |          ^^^^^^^^^
help: remove this attribute
  --> tests/ui/duplicated_attributes.rs:4:10
   |
LL | #![allow(dead_code)]
   |          ^^^^^^^^^
   = note: `-D clippy::duplicated-attributes` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::duplicated_attributes)]`

error: duplicated attribute
  --> tests/ui/duplicated_attributes.rs:9:9
   |
LL | #[allow(dead_code)]
   |         ^^^^^^^^^
   |
note: first defined here
  --> tests/ui/duplicated_attributes.rs:8:9
   |
LL | #[allow(dead_code)]
   |         ^^^^^^^^^
help: remove this attribute
  --> tests/ui/duplicated_attributes.rs:9:9
   |
LL | #[allow(dead_code)]
   |         ^^^^^^^^^

error: duplicated attribute
  --> tests/ui/duplicated_attributes.rs:15:7
   |
LL | #[cfg(unix)]
   |       ^^^^
   |
note: first defined here
  --> tests/ui/duplicated_attributes.rs:13:7
   |
LL | #[cfg(unix)]
   |       ^^^^
help: remove this attribute
  --> tests/ui/duplicated_attributes.rs:15:7
   |
LL | #[cfg(unix)]
   |       ^^^^

error: aborting due to 3 previous errors