rustc is stuck inside devshell, but work when execute build task

[sprhawk]

I'm using poky dunfell branch, use HEAD revision of meta-rust-bin. I can do bitbake my-rust-project-recipe,
but when bitbake -c devshell my-rust-projet-recipe, inside devshell, execute rustc with any parameters even --version, it will stuck, no any output.

cargo --version can work, but cargo build still stuck.

my target is aarch64 (Raspberry Pi 4) host is Debian Buster x86_64.