Thread joining can't be used with failure

[marmistrz]

Example code:

fn run() -> Fallible<()> {
    let handle = thread::spawn(|| loop {});
    handle.join()?;
    Ok(())
}

results in an error:

error[E0277]: the size for values of type `dyn std::any::Any + std::marker::Send` cannot be known at compilation time
  --> src/main.rs:11:5
   |
11 |     handle.join()?;
   |     ^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   |
   = help: the trait `std::marker::Sized` is not implemented for `dyn std::any::Any + std::marker::Send`
   = note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-sized>
   = note: required because of the requirements on the impl of `std::error::Error` for `std::boxed::Box<dyn std::any::Any + std::marker::Send>`
   = note: required because of the requirements on the impl of `failure::Fail` for `std::boxed::Box<dyn std::any::Any + std::marker::Send>`
   = note: required because of the requirements on the impl of `std::convert::From<std::boxed::Box<dyn std::any::Any + std::marker::Send>>` for `failure::Error`
   = note: required by `std::convert::From::from`

error[E0277]: the trait bound `dyn std::any::Any + std::marker::Send: std::error::Error` is not satisfied
  --> src/main.rs:11:5
   |
11 |     handle.join()?;
   |     ^^^^^^^^^^^^^^ the trait `std::error::Error` is not implemented for `dyn std::any::Any + std::marker::Send`
   |
   = note: required because of the requirements on the impl of `std::error::Error` for `std::boxed::Box<dyn std::any::Any + std::marker::Send>`
   = note: required because of the requirements on the impl of `failure::Fail` for `std::boxed::Box<dyn std::any::Any + std::marker::Send>`
   = note: required because of the requirements on the impl of `std::convert::From<std::boxed::Box<dyn std::any::Any + std::marker::Send>>` for `failure::Error`
   = note: required by `std::convert::From::from`

error[E0277]: `dyn std::any::Any + std::marker::Send` cannot be shared between threads safely
  --> src/main.rs:11:5
   |
11 |     handle.join()?;
   |     ^^^^^^^^^^^^^^ `dyn std::any::Any + std::marker::Send` cannot be shared between threads safely
   |
   = help: the trait `std::marker::Sync` is not implemented for `dyn std::any::Any + std::marker::Send`
   = note: required because of the requirements on the impl of `std::marker::Sync` for `std::ptr::Unique<dyn std::any::Any + std::marker::Send>`
   = note: required because it appears within the type `std::boxed::Box<dyn std::any::Any + std::marker::Send>`
   = note: required because of the requirements on the impl of `failure::Fail` for `std::boxed::Box<dyn std::any::Any + std::marker::Send>`
   = note: required because of the requirements on the impl of `std::convert::From<std::boxed::Box<dyn std::any::Any + std::marker::Send>>` for `failure::Error`
   = note: required by `std::convert::From::from`