编辑 ~/.cargo/config
加上
[target.aarch64-linux-android]
linker = "aarch64-linux-android30-clang"
ar = "aarch64-linux-android-ar"
[target.x86_64-pc-windows-msvc]
rustflags = ["-C", "target-feature=+crt-static"]
windows是避免缺少dll的报错，参见
https://rust-lang.github.io/rfcs/1721-crt-static.html
rust 宏系统