Add a to_any helper in the containerd client crate

[estesp]

Fixes: #362

This provides a solution to Any->type matching that happens on the containerd Go-based server side where the Any types in prost use typeurl as defined in the protobuf spec and the server side is matching on the fullname property of the type.

[estesp]

ping @mxpv - not sure what is going on with CI; looks like an error in the shim package tests, but not sure how it could be related to my change?

[mxpv]

Looks like the formatter is not happy with imports:

[estesp]

Thanks! Fixed that, but looks like many CI jobs are having the same output about a type definition in the shim, with a recommended fix (but I have no idea if that's a change somewhere in the CI underpinning platform that caused that or a weird by-product of my change?):

   Compiling containerd-shim v0.7.4 (/Users/runner/work/rust-extensions/rust-extensions/crates/shim)
error[E0308]: mismatched types
   --> crates/shim/src/asynchronous/mod.rs:181:53
    |
181 |             let task_service = create_task(Arc::new(task));
    |                                            -------- ^^^^ expected `Box<dyn Task + Send + Sync>`, found associated type
    |                                            |
    |                                            arguments to this function are incorrect
    |
    = note:       expected struct `std::boxed::Box<dyn containerd_shim_protos::shim_async::Task + std::marker::Send + Sync>`
            found associated type `<T as asynchronous::Shim>::T`
    = help: consider constraining the associated type `<T as asynchronous::Shim>::T` to `std::boxed::Box<dyn containerd_shim_protos::shim_async::Task + std::marker::Send + Sync>`
    = note: for more information, visit https://doc.rust-lang.org/book/ch19-03-advanced-traits.html
    = note: for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html, and https://doc.rust-lang.org/std/boxed/index.html
note: associated function defined here
   --> /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/alloc/src/sync.rs:386:12
help: store this in the heap by calling `Box::new`
    |
181 |             let task_service = create_task(Arc::new(Box::new(task)));
    |                                                     +++++++++    +

For more information about this error, try `rustc --explain E0308`.
error: could not compile `containerd-shim` (lib) due to 1 previous error

[estesp]

Not sure how to debug CI here; Taking a simple job like “Timings” and running it locally (even with my PR change), I can’t reproduce the error. How are Rust versions managed in GH Actions; any chance something changed?

Here is my output:

cargo build --all-features --timings
   Compiling containerd-shim-protos v0.7.2 (/home/ubuntu/go/src/github.com/containerd/rust-extensions/crates/shim-protos)
   Compiling containerd-snapshots v0.3.0 (/home/ubuntu/go/src/github.com/containerd/rust-extensions/crates/snapshots)
   Compiling containerd-client v0.7.0 (/home/ubuntu/go/src/github.com/containerd/rust-extensions/crates/client)
   Compiling runc v0.2.0 (/home/ubuntu/go/src/github.com/containerd/rust-extensions/crates/runc)
   Compiling containerd-shim-logging v0.1.1 (/home/ubuntu/go/src/github.com/containerd/rust-extensions/crates/logging)
   Compiling containerd-shim v0.7.4 (/home/ubuntu/go/src/github.com/containerd/rust-extensions/crates/shim)
   Compiling containerd-runc-shim v0.1.1 (/home/ubuntu/go/src/github.com/containerd/rust-extensions/crates/runc-shim)
      Timing report saved to /home/ubuntu/go/src/github.com/containerd/rust-extensions/target/cargo-timings/cargo-timing-20250116T182114Z.html
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.34s

[mxpv]

Ya, there is something weird going on with ttrpc, the whole CI is broken. I'll TAL in a bit.

[estesp]

Looks like we are good now! Thanks