`Send` bound of trait object make unexpected async block is not general enough error

I tried this code:
https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=4f2133cbf38d27366a8edd106b5485e5

I expected to see this happen: Same as below, compile pass:
https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=69e324c356bd126e575a971a7cbbf2fa

Instead, this happened:

error: implementation of `From` is not general enough
  --> src/lib.rs:44:9
   |
44 | /         Box::pin(async move {
45 | |             let response = self.send_request(request).await;
46 | |             match response {
47 | |                 Ok(response) => todo!(),
...  |
51 | |             }
52 | |         })
   | |__________^ implementation of `From` is not general enough
   |
   = note: `Box<(dyn std::error::Error + Send + Sync + 'static)>` must implement `From<Box<(dyn std::error::Error + Send + Sync + '0)>>`, for any lifetime `'0`...
   = note: ...but it actually implements `From<Box<(dyn std::error::Error + Send + Sync + 'static)>>`

error: could not compile `playground` (lib) due to 1 previous error; 1 warning emitted

Start by running the two Rust Playground examples linked in the report with stable Rust and edition 2021, comparing the compiling and failing cases. Trace the reported error at src/lib.rs:44-52 and determine the compiler behavior involved; done means the discrepancy is understood and the reported example compiles or receives an appropriate correction.