能够输入版本号，git commit hash。还可以判断包不包含你关心的某个具体 commit 有没有进 nightly

Github地址

例子

$ cargo run -- bff216c56f472dd751d3da636027d5e2d821e979
    Finished dev [unoptimized + debuginfo] target(s) in 0.18s
     Running `target/debug/rust-nightly-commit-hash-checker bff216c56f472dd751d3da636027d5e2d821e979`
nightly:
version: 1.42.0-nightly (b5a3341f1 2020-01-20)
hash: b5a3341f1b8b475990e9d1b071b88d3c280936b4
Not found! Nightly build doesn't contain this commit: bff216c56f472dd751d3da636027d5e2d821e979