examples/cpp_calling_rust fails to run

[nak3]

Expected Behavior

• examples/cpp_calling_rust does not produce an error.

Actual Behavior

• The following error happens:

$ cargo run
    Updating crates.io index
   Compiling cpp_calling_rust v0.1.0 (/home/knakayam/dev/autocxx/examples/cpp_calling_rust)
error[E0277]: the trait bound `autocxx_engine::builder::BuilderError: Diagnostic` is not satisfied
  --> build.rs:13:17
   |
13 |         .build()?;
   |                 ^ the trait `Diagnostic` is not implemented for `autocxx_engine::builder::BuilderError`
   |
   = help: the following other types implement trait `Diagnostic`:
             InstallError
             MietteError
   = note: required because of the requirements on the impl of `From<autocxx_engine::builder::BuilderError>` for `ErrReport`
   = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, autocxx_engine::builder::BuilderError>>` for `Result<(), ErrReport>`

For more information about this error, try `rustc --explain E0277`.
error: could not compile `cpp_calling_rust` due to previous error

Steps to Reproduce the Problem

1. Just run examples/cpp_calling_rust.

$ cd examples/cpp_calling_rust
$ cargo run

Specifications

• Version: b7a23c5
• Platform:

$ uname -omprsi
Linux 6.0.12-100.fc35.x86_64 x86_64 x86_64 x86_64 GNU/Linux