Github user sadikovi commented on the issue:
https://github.com/apache/thrift/pull/1360
@allengeorge When I compile parquet-rs library I get following warnings
([parquet.thrift](https://github.com/sadikovi/parquet-rs/blob/master/src/parquet_thrift/parquet.thrift))
```shell
warning: unused extern crate
--> src/parquet_thrift/parquet.rs:8:1
|
8 | extern crate ordered_float;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: #[warn(unused_extern_crates)] on by default
warning: unused extern crate
--> src/parquet_thrift/parquet.rs:10:1
|
10 | extern crate try_from;
| ^^^^^^^^^^^^^^^^^^^^^^
```
This happens when `extern crate ...` is already defined in
[lib.rs](https://github.com/sadikovi/parquet-rs/blob/master/src/lib.rs) for the
library.
---
