error: duplicated attribute --> sigma-ser/src/lib.rs:13:11 | 13 | #![forbid(unsafe_code)] | ^^^^^^^^^^^ | note: first defined here --> sigma-ser/src/lib.rs:5:11 | 5 | #![forbid(unsafe_code)] | ^^^^^^^^^^^ help: remove this attribute --> sigma-ser/src/lib.rs:13:11 | 13 | #![forbid(unsafe_code)] | ^^^^^^^^^^^ = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#duplicated_attributes = note: `-D clippy::duplicated-attributes` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::duplicated_attributes)]`