How I use CryptoProvider::install_default() ?

[incker]

Hello, I receive panic
PanicInfo { payload: Any { .. }, message: Some(no process-level CryptoProvider available -- call CryptoProvider::install_default() before this point), location: Location { file: "/home/incker/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rustls-0.23.5/src/crypto/mod.rs", line: 260, col: 14 }, can_unwind: true, force_no_backtrace: false }

But there is no example how to use CryptoProvider::install_default()

Cargo.toml:
rustls = {version = "0.23.5", default-features = false, features = ["std"]}

If I remove default-features = false it requires
Please enable the 'bindgen' feature on aws-lc-rs or aws-lc-sys.For more information, see the aws-lc-rs User Guide: https://aws.github.io/aws-lc-rs/index.html

but adding this:
aws-lc-rs = {version = "1.7.0", features = ["bindgen"]}
requires:
/usr/include/stdio.h:27:10: fatal error: 'bits/libc-header-start.h' file not found
thread 'main' panicked at /home/builder/.cargo/registry/src/index.crates.io-6f17d22bba15001f/aws-lc-sys-0.15.0/builder/bindgen.rs:155:10:
Unable to generate bindings.: ClangDiagnostic("/usr/include/stdio.h:27:10: fatal error: 'bits/libc-header-start.h' file not found\n")

And i haven't found package gcc-multilib for arm-buildroot-linux-musleabihf ((

Forward thank you!

[ctz]

But there is no example how to use CryptoProvider::install_default()

See https://docs.rs/rustls/latest/rustls/index.html#crate-features

/usr/include/stdio.h:27:10: fatal error: 'bits/libc-header-start.h' file not found

https://rust-lang.github.io/rust-bindgen/requirements.html#requirements aside from that, yes, you will need a working sysroot for the target and to tell bindgen where it is.

[KarstenB]

Ok, maybe it is just me, but the simplest solution boils down to using the ring feature of rustls:

cargo add rustls --features ring

And then, early in your main fn call:

rustls::crypto::ring::default_provider().install_default().expect("Failed to install rustls crypto provider");

Correct?

[incker]

Installing just gcc-multilib helped me
Thanks for everyone!