zhen li

> if you have issues building, please provide more context that just raw dumps of errors like this. I reinstalled everything according to the docs, but still can't build. Error...

> Try to upgrade gcc / g++ gcc/g++ is up-to-date

> can you please report `rustup +nightly show`? i am using gcc/g++ `version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1)` ```Default host: x86_64-apple-darwin rustup home: /Users/lizhen/.rustup installed toolchains -------------------- stable-x86_64-apple-darwin (default) nightly-x86_64-apple-darwin installed targets...