[GitHub] [arrow] andygrove commented on pull request #8285: ARROW-9754: [Rust] [DataFusion] Implement async in ExecutionPlan trait [WIP]

[GitBox <gi...@apache.org>]

andygrove commented on pull request #8285:
URL: https://github.com/apache/arrow/pull/8285#issuecomment-699557085


   Currently fails to compile due to
   
   ```
   error[E0700]: hidden type for `impl Trait` captures lifetime that does not appear in bounds
      --> datafusion/src/execution/context.rs:352:10
       |
   352 |     ) -> Result<()> {
       |          ^^^^^^^^^^
       |
   note: hidden type `impl std::future::Future` captures the scope of call-site for function at 352:21
      --> datafusion/src/execution/context.rs:352:21
       |
   352 |       ) -> Result<()> {
       |  _____________________^
   353 | |         // create directory to contain the CSV files (one per partition)
   354 | |         let path = path.to_string();
   355 | |         fs::create_dir(&path)?;
   ...   |
   377 | |         Ok(())
   378 | |     }
       | |_____^
   ```
   
   @BatmanAoD I was wondering if you might know what is causing this?


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