Ignore cast_possible_wrap pedantic clippy lint

    error: casting `usize` to `isize` may wrap around the value
      --> src/buffer.rs:56:46
       |
    56 |                     entries.push(Entry::End(-(group_end_index as isize)));
       |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
       |
       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_possible_wrap
       = note: `-D clippy::cast-possible-wrap` implied by `-D clippy::pedantic`

    error: casting `usize` to `isize` may wrap around the value
      --> src/buffer.rs:82:34
       |
    82 |         entries.push(Entry::End(-(entries.len() as isize)));
       |                                  ^^^^^^^^^^^^^^^^^^^^^^^^
       |
       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_possible_wrap

src/lib.rs

@@ -257,6 +257,7 @@
     clippy::bool_to_int_with_if,
     clippy::cast_lossless,
     clippy::cast_possible_truncation,
+    clippy::cast_possible_wrap,
     clippy::cast_ptr_alignment,
     clippy::default_trait_access,
     clippy::doc_markdown,