error: you appear to be counting bytes the naive way --> $DIR/bytecount.rs:10:13 | LL | let _ = x.iter().filter(|&&a| a == 0).count(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using the bytecount crate: `bytecount::count(x, 0)` | note: the lint level is defined here --> $DIR/bytecount.rs:5:8 | LL | #[deny(clippy::naive_bytecount)] | ^^^^^^^^^^^^^^^^^^^^^^^ error: you appear to be counting bytes the naive way --> $DIR/bytecount.rs:14:13 | LL | let _ = (&x[..]).iter().filter(|&a| *a == 0).count(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using the bytecount crate: `bytecount::count((&x[..]), 0)` error: you appear to be counting bytes the naive way --> $DIR/bytecount.rs:32:13 | LL | let _ = x.iter().filter(|a| b + 1 == **a).count(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using the bytecount crate: `bytecount::count(x, b + 1)` error: aborting due to 3 previous errors