message: build: use crates.io
  This changes to use crates.io to avoid any failure in CI.
diff: FROM rust:1.43
  RUN echo '[source.crates-io] \n\
  -registry = "https://github.com/rust-lang/crates.io-index" \n\
  -replace-with = "thu" \n\
  -[source.thu] \n\
  -registry = "https://mirrors.tuna.tsinghua.edu.cn/git/crates.io-index.git"'\
  +registry = "https://github.com/rust-lang/crates.io-index"'\
  >> /usr/local/cargo/config
  RUN rustup component add clippy
  